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@@ -1,1414 +1,1414 b'' | |||||
1 | """The IPython Controller Hub with 0MQ |
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1 | """The IPython Controller Hub with 0MQ | |
2 | This is the master object that handles connections from engines and clients, |
|
2 | This is the master object that handles connections from engines and clients, | |
3 | and monitors traffic through the various queues. |
|
3 | and monitors traffic through the various queues. | |
4 |
|
4 | |||
5 | Authors: |
|
5 | Authors: | |
6 |
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6 | |||
7 | * Min RK |
|
7 | * Min RK | |
8 | """ |
|
8 | """ | |
9 | #----------------------------------------------------------------------------- |
|
9 | #----------------------------------------------------------------------------- | |
10 | # Copyright (C) 2010-2011 The IPython Development Team |
|
10 | # Copyright (C) 2010-2011 The IPython Development Team | |
11 | # |
|
11 | # | |
12 | # Distributed under the terms of the BSD License. The full license is in |
|
12 | # Distributed under the terms of the BSD License. The full license is in | |
13 | # the file COPYING, distributed as part of this software. |
|
13 | # the file COPYING, distributed as part of this software. | |
14 | #----------------------------------------------------------------------------- |
|
14 | #----------------------------------------------------------------------------- | |
15 |
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15 | |||
16 | #----------------------------------------------------------------------------- |
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16 | #----------------------------------------------------------------------------- | |
17 | # Imports |
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17 | # Imports | |
18 | #----------------------------------------------------------------------------- |
|
18 | #----------------------------------------------------------------------------- | |
19 | from __future__ import print_function |
|
19 | from __future__ import print_function | |
20 |
|
20 | |||
21 | import json |
|
21 | import json | |
22 | import os |
|
22 | import os | |
23 | import sys |
|
23 | import sys | |
24 | import time |
|
24 | import time | |
25 | from datetime import datetime |
|
25 | from datetime import datetime | |
26 |
|
26 | |||
27 | import zmq |
|
27 | import zmq | |
28 | from zmq.eventloop import ioloop |
|
28 | from zmq.eventloop import ioloop | |
29 | from zmq.eventloop.zmqstream import ZMQStream |
|
29 | from zmq.eventloop.zmqstream import ZMQStream | |
30 |
|
30 | |||
31 | # internal: |
|
31 | # internal: | |
32 | from IPython.utils.importstring import import_item |
|
32 | from IPython.utils.importstring import import_item | |
33 | from IPython.utils.py3compat import cast_bytes |
|
33 | from IPython.utils.py3compat import cast_bytes | |
34 | from IPython.utils.traitlets import ( |
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34 | from IPython.utils.traitlets import ( | |
35 | HasTraits, Instance, Integer, Unicode, Dict, Set, Tuple, CBytes, DottedObjectName |
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35 | HasTraits, Instance, Integer, Unicode, Dict, Set, Tuple, CBytes, DottedObjectName | |
36 | ) |
|
36 | ) | |
37 |
|
37 | |||
38 | from IPython.parallel import error, util |
|
38 | from IPython.parallel import error, util | |
39 | from IPython.parallel.factory import RegistrationFactory |
|
39 | from IPython.parallel.factory import RegistrationFactory | |
40 |
|
40 | |||
41 | from IPython.zmq.session import SessionFactory |
|
41 | from IPython.zmq.session import SessionFactory | |
42 |
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42 | |||
43 | from .heartmonitor import HeartMonitor |
|
43 | from .heartmonitor import HeartMonitor | |
44 |
|
44 | |||
45 | #----------------------------------------------------------------------------- |
|
45 | #----------------------------------------------------------------------------- | |
46 | # Code |
|
46 | # Code | |
47 | #----------------------------------------------------------------------------- |
|
47 | #----------------------------------------------------------------------------- | |
48 |
|
48 | |||
49 | def _passer(*args, **kwargs): |
|
49 | def _passer(*args, **kwargs): | |
50 | return |
|
50 | return | |
51 |
|
51 | |||
52 | def _printer(*args, **kwargs): |
|
52 | def _printer(*args, **kwargs): | |
53 | print (args) |
|
53 | print (args) | |
54 | print (kwargs) |
|
54 | print (kwargs) | |
55 |
|
55 | |||
56 | def empty_record(): |
|
56 | def empty_record(): | |
57 | """Return an empty dict with all record keys.""" |
|
57 | """Return an empty dict with all record keys.""" | |
58 | return { |
|
58 | return { | |
59 | 'msg_id' : None, |
|
59 | 'msg_id' : None, | |
60 | 'header' : None, |
|
60 | 'header' : None, | |
61 | 'metadata' : None, |
|
61 | 'metadata' : None, | |
62 | 'content': None, |
|
62 | 'content': None, | |
63 | 'buffers': None, |
|
63 | 'buffers': None, | |
64 | 'submitted': None, |
|
64 | 'submitted': None, | |
65 | 'client_uuid' : None, |
|
65 | 'client_uuid' : None, | |
66 | 'engine_uuid' : None, |
|
66 | 'engine_uuid' : None, | |
67 | 'started': None, |
|
67 | 'started': None, | |
68 | 'completed': None, |
|
68 | 'completed': None, | |
69 | 'resubmitted': None, |
|
69 | 'resubmitted': None, | |
70 | 'received': None, |
|
70 | 'received': None, | |
71 | 'result_header' : None, |
|
71 | 'result_header' : None, | |
72 | 'result_metadata' : None, |
|
72 | 'result_metadata' : None, | |
73 | 'result_content' : None, |
|
73 | 'result_content' : None, | |
74 | 'result_buffers' : None, |
|
74 | 'result_buffers' : None, | |
75 | 'queue' : None, |
|
75 | 'queue' : None, | |
76 | 'pyin' : None, |
|
76 | 'pyin' : None, | |
77 | 'pyout': None, |
|
77 | 'pyout': None, | |
78 | 'pyerr': None, |
|
78 | 'pyerr': None, | |
79 | 'stdout': '', |
|
79 | 'stdout': '', | |
80 | 'stderr': '', |
|
80 | 'stderr': '', | |
81 | } |
|
81 | } | |
82 |
|
82 | |||
83 | def init_record(msg): |
|
83 | def init_record(msg): | |
84 | """Initialize a TaskRecord based on a request.""" |
|
84 | """Initialize a TaskRecord based on a request.""" | |
85 | header = msg['header'] |
|
85 | header = msg['header'] | |
86 | return { |
|
86 | return { | |
87 | 'msg_id' : header['msg_id'], |
|
87 | 'msg_id' : header['msg_id'], | |
88 | 'header' : header, |
|
88 | 'header' : header, | |
89 | 'content': msg['content'], |
|
89 | 'content': msg['content'], | |
90 | 'metadata': msg['metadata'], |
|
90 | 'metadata': msg['metadata'], | |
91 | 'buffers': msg['buffers'], |
|
91 | 'buffers': msg['buffers'], | |
92 | 'submitted': header['date'], |
|
92 | 'submitted': header['date'], | |
93 | 'client_uuid' : None, |
|
93 | 'client_uuid' : None, | |
94 | 'engine_uuid' : None, |
|
94 | 'engine_uuid' : None, | |
95 | 'started': None, |
|
95 | 'started': None, | |
96 | 'completed': None, |
|
96 | 'completed': None, | |
97 | 'resubmitted': None, |
|
97 | 'resubmitted': None, | |
98 | 'received': None, |
|
98 | 'received': None, | |
99 | 'result_header' : None, |
|
99 | 'result_header' : None, | |
100 | 'result_metadata': None, |
|
100 | 'result_metadata': None, | |
101 | 'result_content' : None, |
|
101 | 'result_content' : None, | |
102 | 'result_buffers' : None, |
|
102 | 'result_buffers' : None, | |
103 | 'queue' : None, |
|
103 | 'queue' : None, | |
104 | 'pyin' : None, |
|
104 | 'pyin' : None, | |
105 | 'pyout': None, |
|
105 | 'pyout': None, | |
106 | 'pyerr': None, |
|
106 | 'pyerr': None, | |
107 | 'stdout': '', |
|
107 | 'stdout': '', | |
108 | 'stderr': '', |
|
108 | 'stderr': '', | |
109 | } |
|
109 | } | |
110 |
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110 | |||
111 |
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111 | |||
112 | class EngineConnector(HasTraits): |
|
112 | class EngineConnector(HasTraits): | |
113 | """A simple object for accessing the various zmq connections of an object. |
|
113 | """A simple object for accessing the various zmq connections of an object. | |
114 | Attributes are: |
|
114 | Attributes are: | |
115 | id (int): engine ID |
|
115 | id (int): engine ID | |
116 | uuid (unicode): engine UUID |
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116 | uuid (unicode): engine UUID | |
117 | pending: set of msg_ids |
|
117 | pending: set of msg_ids | |
118 | stallback: DelayedCallback for stalled registration |
|
118 | stallback: DelayedCallback for stalled registration | |
119 | """ |
|
119 | """ | |
120 |
|
120 | |||
121 | id = Integer(0) |
|
121 | id = Integer(0) | |
122 | uuid = Unicode() |
|
122 | uuid = Unicode() | |
123 | pending = Set() |
|
123 | pending = Set() | |
124 | stallback = Instance(ioloop.DelayedCallback) |
|
124 | stallback = Instance(ioloop.DelayedCallback) | |
125 |
|
125 | |||
126 |
|
126 | |||
127 | _db_shortcuts = { |
|
127 | _db_shortcuts = { | |
128 | 'sqlitedb' : 'IPython.parallel.controller.sqlitedb.SQLiteDB', |
|
128 | 'sqlitedb' : 'IPython.parallel.controller.sqlitedb.SQLiteDB', | |
129 | 'mongodb' : 'IPython.parallel.controller.mongodb.MongoDB', |
|
129 | 'mongodb' : 'IPython.parallel.controller.mongodb.MongoDB', | |
130 | 'dictdb' : 'IPython.parallel.controller.dictdb.DictDB', |
|
130 | 'dictdb' : 'IPython.parallel.controller.dictdb.DictDB', | |
131 | 'nodb' : 'IPython.parallel.controller.dictdb.NoDB', |
|
131 | 'nodb' : 'IPython.parallel.controller.dictdb.NoDB', | |
132 | } |
|
132 | } | |
133 |
|
133 | |||
134 | class HubFactory(RegistrationFactory): |
|
134 | class HubFactory(RegistrationFactory): | |
135 | """The Configurable for setting up a Hub.""" |
|
135 | """The Configurable for setting up a Hub.""" | |
136 |
|
136 | |||
137 | # port-pairs for monitoredqueues: |
|
137 | # port-pairs for monitoredqueues: | |
138 | hb = Tuple(Integer,Integer,config=True, |
|
138 | hb = Tuple(Integer,Integer,config=True, | |
139 | help="""PUB/ROUTER Port pair for Engine heartbeats""") |
|
139 | help="""PUB/ROUTER Port pair for Engine heartbeats""") | |
140 | def _hb_default(self): |
|
140 | def _hb_default(self): | |
141 | return tuple(util.select_random_ports(2)) |
|
141 | return tuple(util.select_random_ports(2)) | |
142 |
|
142 | |||
143 | mux = Tuple(Integer,Integer,config=True, |
|
143 | mux = Tuple(Integer,Integer,config=True, | |
144 | help="""Client/Engine Port pair for MUX queue""") |
|
144 | help="""Client/Engine Port pair for MUX queue""") | |
145 |
|
145 | |||
146 | def _mux_default(self): |
|
146 | def _mux_default(self): | |
147 | return tuple(util.select_random_ports(2)) |
|
147 | return tuple(util.select_random_ports(2)) | |
148 |
|
148 | |||
149 | task = Tuple(Integer,Integer,config=True, |
|
149 | task = Tuple(Integer,Integer,config=True, | |
150 | help="""Client/Engine Port pair for Task queue""") |
|
150 | help="""Client/Engine Port pair for Task queue""") | |
151 | def _task_default(self): |
|
151 | def _task_default(self): | |
152 | return tuple(util.select_random_ports(2)) |
|
152 | return tuple(util.select_random_ports(2)) | |
153 |
|
153 | |||
154 | control = Tuple(Integer,Integer,config=True, |
|
154 | control = Tuple(Integer,Integer,config=True, | |
155 | help="""Client/Engine Port pair for Control queue""") |
|
155 | help="""Client/Engine Port pair for Control queue""") | |
156 |
|
156 | |||
157 | def _control_default(self): |
|
157 | def _control_default(self): | |
158 | return tuple(util.select_random_ports(2)) |
|
158 | return tuple(util.select_random_ports(2)) | |
159 |
|
159 | |||
160 | iopub = Tuple(Integer,Integer,config=True, |
|
160 | iopub = Tuple(Integer,Integer,config=True, | |
161 | help="""Client/Engine Port pair for IOPub relay""") |
|
161 | help="""Client/Engine Port pair for IOPub relay""") | |
162 |
|
162 | |||
163 | def _iopub_default(self): |
|
163 | def _iopub_default(self): | |
164 | return tuple(util.select_random_ports(2)) |
|
164 | return tuple(util.select_random_ports(2)) | |
165 |
|
165 | |||
166 | # single ports: |
|
166 | # single ports: | |
167 | mon_port = Integer(config=True, |
|
167 | mon_port = Integer(config=True, | |
168 | help="""Monitor (SUB) port for queue traffic""") |
|
168 | help="""Monitor (SUB) port for queue traffic""") | |
169 |
|
169 | |||
170 | def _mon_port_default(self): |
|
170 | def _mon_port_default(self): | |
171 | return util.select_random_ports(1)[0] |
|
171 | return util.select_random_ports(1)[0] | |
172 |
|
172 | |||
173 | notifier_port = Integer(config=True, |
|
173 | notifier_port = Integer(config=True, | |
174 | help="""PUB port for sending engine status notifications""") |
|
174 | help="""PUB port for sending engine status notifications""") | |
175 |
|
175 | |||
176 | def _notifier_port_default(self): |
|
176 | def _notifier_port_default(self): | |
177 | return util.select_random_ports(1)[0] |
|
177 | return util.select_random_ports(1)[0] | |
178 |
|
178 | |||
179 | engine_ip = Unicode('127.0.0.1', config=True, |
|
179 | engine_ip = Unicode('127.0.0.1', config=True, | |
180 | help="IP on which to listen for engine connections. [default: loopback]") |
|
180 | help="IP on which to listen for engine connections. [default: loopback]") | |
181 | engine_transport = Unicode('tcp', config=True, |
|
181 | engine_transport = Unicode('tcp', config=True, | |
182 | help="0MQ transport for engine connections. [default: tcp]") |
|
182 | help="0MQ transport for engine connections. [default: tcp]") | |
183 |
|
183 | |||
184 | client_ip = Unicode('127.0.0.1', config=True, |
|
184 | client_ip = Unicode('127.0.0.1', config=True, | |
185 | help="IP on which to listen for client connections. [default: loopback]") |
|
185 | help="IP on which to listen for client connections. [default: loopback]") | |
186 | client_transport = Unicode('tcp', config=True, |
|
186 | client_transport = Unicode('tcp', config=True, | |
187 | help="0MQ transport for client connections. [default : tcp]") |
|
187 | help="0MQ transport for client connections. [default : tcp]") | |
188 |
|
188 | |||
189 | monitor_ip = Unicode('127.0.0.1', config=True, |
|
189 | monitor_ip = Unicode('127.0.0.1', config=True, | |
190 | help="IP on which to listen for monitor messages. [default: loopback]") |
|
190 | help="IP on which to listen for monitor messages. [default: loopback]") | |
191 | monitor_transport = Unicode('tcp', config=True, |
|
191 | monitor_transport = Unicode('tcp', config=True, | |
192 | help="0MQ transport for monitor messages. [default : tcp]") |
|
192 | help="0MQ transport for monitor messages. [default : tcp]") | |
193 |
|
193 | |||
194 | monitor_url = Unicode('') |
|
194 | monitor_url = Unicode('') | |
195 |
|
195 | |||
196 | db_class = DottedObjectName('NoDB', |
|
196 | db_class = DottedObjectName('NoDB', | |
197 | config=True, help="""The class to use for the DB backend |
|
197 | config=True, help="""The class to use for the DB backend | |
198 |
|
198 | |||
199 | Options include: |
|
199 | Options include: | |
200 |
|
200 | |||
201 | SQLiteDB: SQLite |
|
201 | SQLiteDB: SQLite | |
202 | MongoDB : use MongoDB |
|
202 | MongoDB : use MongoDB | |
203 | DictDB : in-memory storage (fastest, but be mindful of memory growth of the Hub) |
|
203 | DictDB : in-memory storage (fastest, but be mindful of memory growth of the Hub) | |
204 | NoDB : disable database altogether (default) |
|
204 | NoDB : disable database altogether (default) | |
205 |
|
205 | |||
206 | """) |
|
206 | """) | |
207 |
|
207 | |||
208 | # not configurable |
|
208 | # not configurable | |
209 | db = Instance('IPython.parallel.controller.dictdb.BaseDB') |
|
209 | db = Instance('IPython.parallel.controller.dictdb.BaseDB') | |
210 | heartmonitor = Instance('IPython.parallel.controller.heartmonitor.HeartMonitor') |
|
210 | heartmonitor = Instance('IPython.parallel.controller.heartmonitor.HeartMonitor') | |
211 |
|
211 | |||
212 | def _ip_changed(self, name, old, new): |
|
212 | def _ip_changed(self, name, old, new): | |
213 | self.engine_ip = new |
|
213 | self.engine_ip = new | |
214 | self.client_ip = new |
|
214 | self.client_ip = new | |
215 | self.monitor_ip = new |
|
215 | self.monitor_ip = new | |
216 | self._update_monitor_url() |
|
216 | self._update_monitor_url() | |
217 |
|
217 | |||
218 | def _update_monitor_url(self): |
|
218 | def _update_monitor_url(self): | |
219 | self.monitor_url = "%s://%s:%i" % (self.monitor_transport, self.monitor_ip, self.mon_port) |
|
219 | self.monitor_url = "%s://%s:%i" % (self.monitor_transport, self.monitor_ip, self.mon_port) | |
220 |
|
220 | |||
221 | def _transport_changed(self, name, old, new): |
|
221 | def _transport_changed(self, name, old, new): | |
222 | self.engine_transport = new |
|
222 | self.engine_transport = new | |
223 | self.client_transport = new |
|
223 | self.client_transport = new | |
224 | self.monitor_transport = new |
|
224 | self.monitor_transport = new | |
225 | self._update_monitor_url() |
|
225 | self._update_monitor_url() | |
226 |
|
226 | |||
227 | def __init__(self, **kwargs): |
|
227 | def __init__(self, **kwargs): | |
228 | super(HubFactory, self).__init__(**kwargs) |
|
228 | super(HubFactory, self).__init__(**kwargs) | |
229 | self._update_monitor_url() |
|
229 | self._update_monitor_url() | |
230 |
|
230 | |||
231 |
|
231 | |||
232 | def construct(self): |
|
232 | def construct(self): | |
233 | self.init_hub() |
|
233 | self.init_hub() | |
234 |
|
234 | |||
235 | def start(self): |
|
235 | def start(self): | |
236 | self.heartmonitor.start() |
|
236 | self.heartmonitor.start() | |
237 | self.log.info("Heartmonitor started") |
|
237 | self.log.info("Heartmonitor started") | |
238 |
|
238 | |||
239 | def client_url(self, channel): |
|
239 | def client_url(self, channel): | |
240 | """return full zmq url for a named client channel""" |
|
240 | """return full zmq url for a named client channel""" | |
241 | return "%s://%s:%i" % (self.client_transport, self.client_ip, self.client_info[channel]) |
|
241 | return "%s://%s:%i" % (self.client_transport, self.client_ip, self.client_info[channel]) | |
242 |
|
242 | |||
243 | def engine_url(self, channel): |
|
243 | def engine_url(self, channel): | |
244 | """return full zmq url for a named engine channel""" |
|
244 | """return full zmq url for a named engine channel""" | |
245 | return "%s://%s:%i" % (self.engine_transport, self.engine_ip, self.engine_info[channel]) |
|
245 | return "%s://%s:%i" % (self.engine_transport, self.engine_ip, self.engine_info[channel]) | |
246 |
|
246 | |||
247 | def init_hub(self): |
|
247 | def init_hub(self): | |
248 | """construct Hub object""" |
|
248 | """construct Hub object""" | |
249 |
|
249 | |||
250 | ctx = self.context |
|
250 | ctx = self.context | |
251 | loop = self.loop |
|
251 | loop = self.loop | |
252 |
|
252 | |||
253 | try: |
|
253 | try: | |
254 | scheme = self.config.TaskScheduler.scheme_name |
|
254 | scheme = self.config.TaskScheduler.scheme_name | |
255 | except AttributeError: |
|
255 | except AttributeError: | |
256 | from .scheduler import TaskScheduler |
|
256 | from .scheduler import TaskScheduler | |
257 | scheme = TaskScheduler.scheme_name.get_default_value() |
|
257 | scheme = TaskScheduler.scheme_name.get_default_value() | |
258 |
|
258 | |||
259 | # build connection dicts |
|
259 | # build connection dicts | |
260 | engine = self.engine_info = { |
|
260 | engine = self.engine_info = { | |
261 | 'interface' : "%s://%s" % (self.engine_transport, self.engine_ip), |
|
261 | 'interface' : "%s://%s" % (self.engine_transport, self.engine_ip), | |
262 | 'registration' : self.regport, |
|
262 | 'registration' : self.regport, | |
263 | 'control' : self.control[1], |
|
263 | 'control' : self.control[1], | |
264 | 'mux' : self.mux[1], |
|
264 | 'mux' : self.mux[1], | |
265 | 'hb_ping' : self.hb[0], |
|
265 | 'hb_ping' : self.hb[0], | |
266 | 'hb_pong' : self.hb[1], |
|
266 | 'hb_pong' : self.hb[1], | |
267 | 'task' : self.task[1], |
|
267 | 'task' : self.task[1], | |
268 | 'iopub' : self.iopub[1], |
|
268 | 'iopub' : self.iopub[1], | |
269 | } |
|
269 | } | |
270 |
|
270 | |||
271 | client = self.client_info = { |
|
271 | client = self.client_info = { | |
272 | 'interface' : "%s://%s" % (self.client_transport, self.client_ip), |
|
272 | 'interface' : "%s://%s" % (self.client_transport, self.client_ip), | |
273 | 'registration' : self.regport, |
|
273 | 'registration' : self.regport, | |
274 | 'control' : self.control[0], |
|
274 | 'control' : self.control[0], | |
275 | 'mux' : self.mux[0], |
|
275 | 'mux' : self.mux[0], | |
276 | 'task' : self.task[0], |
|
276 | 'task' : self.task[0], | |
277 | 'task_scheme' : scheme, |
|
277 | 'task_scheme' : scheme, | |
278 | 'iopub' : self.iopub[0], |
|
278 | 'iopub' : self.iopub[0], | |
279 | 'notification' : self.notifier_port, |
|
279 | 'notification' : self.notifier_port, | |
280 | } |
|
280 | } | |
281 |
|
281 | |||
282 | self.log.debug("Hub engine addrs: %s", self.engine_info) |
|
282 | self.log.debug("Hub engine addrs: %s", self.engine_info) | |
283 | self.log.debug("Hub client addrs: %s", self.client_info) |
|
283 | self.log.debug("Hub client addrs: %s", self.client_info) | |
284 |
|
284 | |||
285 | # Registrar socket |
|
285 | # Registrar socket | |
286 | q = ZMQStream(ctx.socket(zmq.ROUTER), loop) |
|
286 | q = ZMQStream(ctx.socket(zmq.ROUTER), loop) | |
287 | q.bind(self.client_url('registration')) |
|
287 | q.bind(self.client_url('registration')) | |
288 | self.log.info("Hub listening on %s for registration.", self.client_url('registration')) |
|
288 | self.log.info("Hub listening on %s for registration.", self.client_url('registration')) | |
289 | if self.client_ip != self.engine_ip: |
|
289 | if self.client_ip != self.engine_ip: | |
290 | q.bind(self.engine_url('registration')) |
|
290 | q.bind(self.engine_url('registration')) | |
291 | self.log.info("Hub listening on %s for registration.", self.engine_url('registration')) |
|
291 | self.log.info("Hub listening on %s for registration.", self.engine_url('registration')) | |
292 |
|
292 | |||
293 | ### Engine connections ### |
|
293 | ### Engine connections ### | |
294 |
|
294 | |||
295 | # heartbeat |
|
295 | # heartbeat | |
296 | hpub = ctx.socket(zmq.PUB) |
|
296 | hpub = ctx.socket(zmq.PUB) | |
297 | hpub.bind(self.engine_url('hb_ping')) |
|
297 | hpub.bind(self.engine_url('hb_ping')) | |
298 | hrep = ctx.socket(zmq.ROUTER) |
|
298 | hrep = ctx.socket(zmq.ROUTER) | |
299 | hrep.bind(self.engine_url('hb_pong')) |
|
299 | hrep.bind(self.engine_url('hb_pong')) | |
300 | self.heartmonitor = HeartMonitor(loop=loop, config=self.config, log=self.log, |
|
300 | self.heartmonitor = HeartMonitor(loop=loop, config=self.config, log=self.log, | |
301 | pingstream=ZMQStream(hpub,loop), |
|
301 | pingstream=ZMQStream(hpub,loop), | |
302 | pongstream=ZMQStream(hrep,loop) |
|
302 | pongstream=ZMQStream(hrep,loop) | |
303 | ) |
|
303 | ) | |
304 |
|
304 | |||
305 | ### Client connections ### |
|
305 | ### Client connections ### | |
306 |
|
306 | |||
307 | # Notifier socket |
|
307 | # Notifier socket | |
308 | n = ZMQStream(ctx.socket(zmq.PUB), loop) |
|
308 | n = ZMQStream(ctx.socket(zmq.PUB), loop) | |
309 | n.bind(self.client_url('notification')) |
|
309 | n.bind(self.client_url('notification')) | |
310 |
|
310 | |||
311 | ### build and launch the queues ### |
|
311 | ### build and launch the queues ### | |
312 |
|
312 | |||
313 | # monitor socket |
|
313 | # monitor socket | |
314 | sub = ctx.socket(zmq.SUB) |
|
314 | sub = ctx.socket(zmq.SUB) | |
315 | sub.setsockopt(zmq.SUBSCRIBE, b"") |
|
315 | sub.setsockopt(zmq.SUBSCRIBE, b"") | |
316 | sub.bind(self.monitor_url) |
|
316 | sub.bind(self.monitor_url) | |
317 | sub.bind('inproc://monitor') |
|
317 | sub.bind('inproc://monitor') | |
318 | sub = ZMQStream(sub, loop) |
|
318 | sub = ZMQStream(sub, loop) | |
319 |
|
319 | |||
320 | # connect the db |
|
320 | # connect the db | |
321 | db_class = _db_shortcuts.get(self.db_class.lower(), self.db_class) |
|
321 | db_class = _db_shortcuts.get(self.db_class.lower(), self.db_class) | |
322 | self.log.info('Hub using DB backend: %r', (db_class.split('.')[-1])) |
|
322 | self.log.info('Hub using DB backend: %r', (db_class.split('.')[-1])) | |
323 | self.db = import_item(str(db_class))(session=self.session.session, |
|
323 | self.db = import_item(str(db_class))(session=self.session.session, | |
324 | config=self.config, log=self.log) |
|
324 | config=self.config, log=self.log) | |
325 | time.sleep(.25) |
|
325 | time.sleep(.25) | |
326 |
|
326 | |||
327 | # resubmit stream |
|
327 | # resubmit stream | |
328 | r = ZMQStream(ctx.socket(zmq.DEALER), loop) |
|
328 | r = ZMQStream(ctx.socket(zmq.DEALER), loop) | |
329 | url = util.disambiguate_url(self.client_url('task')) |
|
329 | url = util.disambiguate_url(self.client_url('task')) | |
330 | r.connect(url) |
|
330 | r.connect(url) | |
331 |
|
331 | |||
332 | self.hub = Hub(loop=loop, session=self.session, monitor=sub, heartmonitor=self.heartmonitor, |
|
332 | self.hub = Hub(loop=loop, session=self.session, monitor=sub, heartmonitor=self.heartmonitor, | |
333 | query=q, notifier=n, resubmit=r, db=self.db, |
|
333 | query=q, notifier=n, resubmit=r, db=self.db, | |
334 | engine_info=self.engine_info, client_info=self.client_info, |
|
334 | engine_info=self.engine_info, client_info=self.client_info, | |
335 | log=self.log) |
|
335 | log=self.log) | |
336 |
|
336 | |||
337 |
|
337 | |||
338 | class Hub(SessionFactory): |
|
338 | class Hub(SessionFactory): | |
339 | """The IPython Controller Hub with 0MQ connections |
|
339 | """The IPython Controller Hub with 0MQ connections | |
340 |
|
340 | |||
341 | Parameters |
|
341 | Parameters | |
342 | ========== |
|
342 | ========== | |
343 | loop: zmq IOLoop instance |
|
343 | loop: zmq IOLoop instance | |
344 | session: Session object |
|
344 | session: Session object | |
345 | <removed> context: zmq context for creating new connections (?) |
|
345 | <removed> context: zmq context for creating new connections (?) | |
346 | queue: ZMQStream for monitoring the command queue (SUB) |
|
346 | queue: ZMQStream for monitoring the command queue (SUB) | |
347 | query: ZMQStream for engine registration and client queries requests (ROUTER) |
|
347 | query: ZMQStream for engine registration and client queries requests (ROUTER) | |
348 | heartbeat: HeartMonitor object checking the pulse of the engines |
|
348 | heartbeat: HeartMonitor object checking the pulse of the engines | |
349 | notifier: ZMQStream for broadcasting engine registration changes (PUB) |
|
349 | notifier: ZMQStream for broadcasting engine registration changes (PUB) | |
350 | db: connection to db for out of memory logging of commands |
|
350 | db: connection to db for out of memory logging of commands | |
351 | NotImplemented |
|
351 | NotImplemented | |
352 | engine_info: dict of zmq connection information for engines to connect |
|
352 | engine_info: dict of zmq connection information for engines to connect | |
353 | to the queues. |
|
353 | to the queues. | |
354 | client_info: dict of zmq connection information for engines to connect |
|
354 | client_info: dict of zmq connection information for engines to connect | |
355 | to the queues. |
|
355 | to the queues. | |
356 | """ |
|
356 | """ | |
357 |
|
357 | |||
358 | engine_state_file = Unicode() |
|
358 | engine_state_file = Unicode() | |
359 |
|
359 | |||
360 | # internal data structures: |
|
360 | # internal data structures: | |
361 | ids=Set() # engine IDs |
|
361 | ids=Set() # engine IDs | |
362 | keytable=Dict() |
|
362 | keytable=Dict() | |
363 | by_ident=Dict() |
|
363 | by_ident=Dict() | |
364 | engines=Dict() |
|
364 | engines=Dict() | |
365 | clients=Dict() |
|
365 | clients=Dict() | |
366 | hearts=Dict() |
|
366 | hearts=Dict() | |
367 | pending=Set() |
|
367 | pending=Set() | |
368 | queues=Dict() # pending msg_ids keyed by engine_id |
|
368 | queues=Dict() # pending msg_ids keyed by engine_id | |
369 | tasks=Dict() # pending msg_ids submitted as tasks, keyed by client_id |
|
369 | tasks=Dict() # pending msg_ids submitted as tasks, keyed by client_id | |
370 | completed=Dict() # completed msg_ids keyed by engine_id |
|
370 | completed=Dict() # completed msg_ids keyed by engine_id | |
371 | all_completed=Set() # completed msg_ids keyed by engine_id |
|
371 | all_completed=Set() # completed msg_ids keyed by engine_id | |
372 | dead_engines=Set() # completed msg_ids keyed by engine_id |
|
372 | dead_engines=Set() # completed msg_ids keyed by engine_id | |
373 | unassigned=Set() # set of task msg_ds not yet assigned a destination |
|
373 | unassigned=Set() # set of task msg_ds not yet assigned a destination | |
374 | incoming_registrations=Dict() |
|
374 | incoming_registrations=Dict() | |
375 | registration_timeout=Integer() |
|
375 | registration_timeout=Integer() | |
376 | _idcounter=Integer(0) |
|
376 | _idcounter=Integer(0) | |
377 |
|
377 | |||
378 | # objects from constructor: |
|
378 | # objects from constructor: | |
379 | query=Instance(ZMQStream) |
|
379 | query=Instance(ZMQStream) | |
380 | monitor=Instance(ZMQStream) |
|
380 | monitor=Instance(ZMQStream) | |
381 | notifier=Instance(ZMQStream) |
|
381 | notifier=Instance(ZMQStream) | |
382 | resubmit=Instance(ZMQStream) |
|
382 | resubmit=Instance(ZMQStream) | |
383 | heartmonitor=Instance(HeartMonitor) |
|
383 | heartmonitor=Instance(HeartMonitor) | |
384 | db=Instance(object) |
|
384 | db=Instance(object) | |
385 | client_info=Dict() |
|
385 | client_info=Dict() | |
386 | engine_info=Dict() |
|
386 | engine_info=Dict() | |
387 |
|
387 | |||
388 |
|
388 | |||
389 | def __init__(self, **kwargs): |
|
389 | def __init__(self, **kwargs): | |
390 | """ |
|
390 | """ | |
391 | # universal: |
|
391 | # universal: | |
392 | loop: IOLoop for creating future connections |
|
392 | loop: IOLoop for creating future connections | |
393 | session: streamsession for sending serialized data |
|
393 | session: streamsession for sending serialized data | |
394 | # engine: |
|
394 | # engine: | |
395 | queue: ZMQStream for monitoring queue messages |
|
395 | queue: ZMQStream for monitoring queue messages | |
396 | query: ZMQStream for engine+client registration and client requests |
|
396 | query: ZMQStream for engine+client registration and client requests | |
397 | heartbeat: HeartMonitor object for tracking engines |
|
397 | heartbeat: HeartMonitor object for tracking engines | |
398 | # extra: |
|
398 | # extra: | |
399 | db: ZMQStream for db connection (NotImplemented) |
|
399 | db: ZMQStream for db connection (NotImplemented) | |
400 | engine_info: zmq address/protocol dict for engine connections |
|
400 | engine_info: zmq address/protocol dict for engine connections | |
401 | client_info: zmq address/protocol dict for client connections |
|
401 | client_info: zmq address/protocol dict for client connections | |
402 | """ |
|
402 | """ | |
403 |
|
403 | |||
404 | super(Hub, self).__init__(**kwargs) |
|
404 | super(Hub, self).__init__(**kwargs) | |
405 | self.registration_timeout = max(5000, 2*self.heartmonitor.period) |
|
405 | self.registration_timeout = max(5000, 2*self.heartmonitor.period) | |
406 |
|
406 | |||
407 | # register our callbacks |
|
407 | # register our callbacks | |
408 | self.query.on_recv(self.dispatch_query) |
|
408 | self.query.on_recv(self.dispatch_query) | |
409 | self.monitor.on_recv(self.dispatch_monitor_traffic) |
|
409 | self.monitor.on_recv(self.dispatch_monitor_traffic) | |
410 |
|
410 | |||
411 | self.heartmonitor.add_heart_failure_handler(self.handle_heart_failure) |
|
411 | self.heartmonitor.add_heart_failure_handler(self.handle_heart_failure) | |
412 | self.heartmonitor.add_new_heart_handler(self.handle_new_heart) |
|
412 | self.heartmonitor.add_new_heart_handler(self.handle_new_heart) | |
413 |
|
413 | |||
414 | self.monitor_handlers = {b'in' : self.save_queue_request, |
|
414 | self.monitor_handlers = {b'in' : self.save_queue_request, | |
415 | b'out': self.save_queue_result, |
|
415 | b'out': self.save_queue_result, | |
416 | b'intask': self.save_task_request, |
|
416 | b'intask': self.save_task_request, | |
417 | b'outtask': self.save_task_result, |
|
417 | b'outtask': self.save_task_result, | |
418 | b'tracktask': self.save_task_destination, |
|
418 | b'tracktask': self.save_task_destination, | |
419 | b'incontrol': _passer, |
|
419 | b'incontrol': _passer, | |
420 | b'outcontrol': _passer, |
|
420 | b'outcontrol': _passer, | |
421 | b'iopub': self.save_iopub_message, |
|
421 | b'iopub': self.save_iopub_message, | |
422 | } |
|
422 | } | |
423 |
|
423 | |||
424 | self.query_handlers = {'queue_request': self.queue_status, |
|
424 | self.query_handlers = {'queue_request': self.queue_status, | |
425 | 'result_request': self.get_results, |
|
425 | 'result_request': self.get_results, | |
426 | 'history_request': self.get_history, |
|
426 | 'history_request': self.get_history, | |
427 | 'db_request': self.db_query, |
|
427 | 'db_request': self.db_query, | |
428 | 'purge_request': self.purge_results, |
|
428 | 'purge_request': self.purge_results, | |
429 | 'load_request': self.check_load, |
|
429 | 'load_request': self.check_load, | |
430 | 'resubmit_request': self.resubmit_task, |
|
430 | 'resubmit_request': self.resubmit_task, | |
431 | 'shutdown_request': self.shutdown_request, |
|
431 | 'shutdown_request': self.shutdown_request, | |
432 | 'registration_request' : self.register_engine, |
|
432 | 'registration_request' : self.register_engine, | |
433 | 'unregistration_request' : self.unregister_engine, |
|
433 | 'unregistration_request' : self.unregister_engine, | |
434 | 'connection_request': self.connection_request, |
|
434 | 'connection_request': self.connection_request, | |
435 | } |
|
435 | } | |
436 |
|
436 | |||
437 | # ignore resubmit replies |
|
437 | # ignore resubmit replies | |
438 | self.resubmit.on_recv(lambda msg: None, copy=False) |
|
438 | self.resubmit.on_recv(lambda msg: None, copy=False) | |
439 |
|
439 | |||
440 | self.log.info("hub::created hub") |
|
440 | self.log.info("hub::created hub") | |
441 |
|
441 | |||
442 | @property |
|
442 | @property | |
443 | def _next_id(self): |
|
443 | def _next_id(self): | |
444 | """gemerate a new ID. |
|
444 | """gemerate a new ID. | |
445 |
|
445 | |||
446 | No longer reuse old ids, just count from 0.""" |
|
446 | No longer reuse old ids, just count from 0.""" | |
447 | newid = self._idcounter |
|
447 | newid = self._idcounter | |
448 | self._idcounter += 1 |
|
448 | self._idcounter += 1 | |
449 | return newid |
|
449 | return newid | |
450 | # newid = 0 |
|
450 | # newid = 0 | |
451 | # incoming = [id[0] for id in self.incoming_registrations.itervalues()] |
|
451 | # incoming = [id[0] for id in self.incoming_registrations.itervalues()] | |
452 | # # print newid, self.ids, self.incoming_registrations |
|
452 | # # print newid, self.ids, self.incoming_registrations | |
453 | # while newid in self.ids or newid in incoming: |
|
453 | # while newid in self.ids or newid in incoming: | |
454 | # newid += 1 |
|
454 | # newid += 1 | |
455 | # return newid |
|
455 | # return newid | |
456 |
|
456 | |||
457 | #----------------------------------------------------------------------------- |
|
457 | #----------------------------------------------------------------------------- | |
458 | # message validation |
|
458 | # message validation | |
459 | #----------------------------------------------------------------------------- |
|
459 | #----------------------------------------------------------------------------- | |
460 |
|
460 | |||
461 | def _validate_targets(self, targets): |
|
461 | def _validate_targets(self, targets): | |
462 | """turn any valid targets argument into a list of integer ids""" |
|
462 | """turn any valid targets argument into a list of integer ids""" | |
463 | if targets is None: |
|
463 | if targets is None: | |
464 | # default to all |
|
464 | # default to all | |
465 | return self.ids |
|
465 | return self.ids | |
466 |
|
466 | |||
467 | if isinstance(targets, (int,str,unicode)): |
|
467 | if isinstance(targets, (int,str,unicode)): | |
468 | # only one target specified |
|
468 | # only one target specified | |
469 | targets = [targets] |
|
469 | targets = [targets] | |
470 | _targets = [] |
|
470 | _targets = [] | |
471 | for t in targets: |
|
471 | for t in targets: | |
472 | # map raw identities to ids |
|
472 | # map raw identities to ids | |
473 | if isinstance(t, (str,unicode)): |
|
473 | if isinstance(t, (str,unicode)): | |
474 | t = self.by_ident.get(cast_bytes(t), t) |
|
474 | t = self.by_ident.get(cast_bytes(t), t) | |
475 | _targets.append(t) |
|
475 | _targets.append(t) | |
476 | targets = _targets |
|
476 | targets = _targets | |
477 | bad_targets = [ t for t in targets if t not in self.ids ] |
|
477 | bad_targets = [ t for t in targets if t not in self.ids ] | |
478 | if bad_targets: |
|
478 | if bad_targets: | |
479 | raise IndexError("No Such Engine: %r" % bad_targets) |
|
479 | raise IndexError("No Such Engine: %r" % bad_targets) | |
480 | if not targets: |
|
480 | if not targets: | |
481 | raise IndexError("No Engines Registered") |
|
481 | raise IndexError("No Engines Registered") | |
482 | return targets |
|
482 | return targets | |
483 |
|
483 | |||
484 | #----------------------------------------------------------------------------- |
|
484 | #----------------------------------------------------------------------------- | |
485 | # dispatch methods (1 per stream) |
|
485 | # dispatch methods (1 per stream) | |
486 | #----------------------------------------------------------------------------- |
|
486 | #----------------------------------------------------------------------------- | |
487 |
|
487 | |||
488 |
|
488 | |||
489 | @util.log_errors |
|
489 | @util.log_errors | |
490 | def dispatch_monitor_traffic(self, msg): |
|
490 | def dispatch_monitor_traffic(self, msg): | |
491 | """all ME and Task queue messages come through here, as well as |
|
491 | """all ME and Task queue messages come through here, as well as | |
492 | IOPub traffic.""" |
|
492 | IOPub traffic.""" | |
493 | self.log.debug("monitor traffic: %r", msg[0]) |
|
493 | self.log.debug("monitor traffic: %r", msg[0]) | |
494 | switch = msg[0] |
|
494 | switch = msg[0] | |
495 | try: |
|
495 | try: | |
496 | idents, msg = self.session.feed_identities(msg[1:]) |
|
496 | idents, msg = self.session.feed_identities(msg[1:]) | |
497 | except ValueError: |
|
497 | except ValueError: | |
498 | idents=[] |
|
498 | idents=[] | |
499 | if not idents: |
|
499 | if not idents: | |
500 | self.log.error("Monitor message without topic: %r", msg) |
|
500 | self.log.error("Monitor message without topic: %r", msg) | |
501 | return |
|
501 | return | |
502 | handler = self.monitor_handlers.get(switch, None) |
|
502 | handler = self.monitor_handlers.get(switch, None) | |
503 | if handler is not None: |
|
503 | if handler is not None: | |
504 | handler(idents, msg) |
|
504 | handler(idents, msg) | |
505 | else: |
|
505 | else: | |
506 | self.log.error("Unrecognized monitor topic: %r", switch) |
|
506 | self.log.error("Unrecognized monitor topic: %r", switch) | |
507 |
|
507 | |||
508 |
|
508 | |||
509 | @util.log_errors |
|
509 | @util.log_errors | |
510 | def dispatch_query(self, msg): |
|
510 | def dispatch_query(self, msg): | |
511 | """Route registration requests and queries from clients.""" |
|
511 | """Route registration requests and queries from clients.""" | |
512 | try: |
|
512 | try: | |
513 | idents, msg = self.session.feed_identities(msg) |
|
513 | idents, msg = self.session.feed_identities(msg) | |
514 | except ValueError: |
|
514 | except ValueError: | |
515 | idents = [] |
|
515 | idents = [] | |
516 | if not idents: |
|
516 | if not idents: | |
517 | self.log.error("Bad Query Message: %r", msg) |
|
517 | self.log.error("Bad Query Message: %r", msg) | |
518 | return |
|
518 | return | |
519 | client_id = idents[0] |
|
519 | client_id = idents[0] | |
520 | try: |
|
520 | try: | |
521 | msg = self.session.unserialize(msg, content=True) |
|
521 | msg = self.session.unserialize(msg, content=True) | |
522 | except Exception: |
|
522 | except Exception: | |
523 | content = error.wrap_exception() |
|
523 | content = error.wrap_exception() | |
524 | self.log.error("Bad Query Message: %r", msg, exc_info=True) |
|
524 | self.log.error("Bad Query Message: %r", msg, exc_info=True) | |
525 | self.session.send(self.query, "hub_error", ident=client_id, |
|
525 | self.session.send(self.query, "hub_error", ident=client_id, | |
526 | content=content) |
|
526 | content=content) | |
527 | return |
|
527 | return | |
528 | # print client_id, header, parent, content |
|
528 | # print client_id, header, parent, content | |
529 | #switch on message type: |
|
529 | #switch on message type: | |
530 | msg_type = msg['header']['msg_type'] |
|
530 | msg_type = msg['header']['msg_type'] | |
531 | self.log.info("client::client %r requested %r", client_id, msg_type) |
|
531 | self.log.info("client::client %r requested %r", client_id, msg_type) | |
532 | handler = self.query_handlers.get(msg_type, None) |
|
532 | handler = self.query_handlers.get(msg_type, None) | |
533 | try: |
|
533 | try: | |
534 | assert handler is not None, "Bad Message Type: %r" % msg_type |
|
534 | assert handler is not None, "Bad Message Type: %r" % msg_type | |
535 | except: |
|
535 | except: | |
536 | content = error.wrap_exception() |
|
536 | content = error.wrap_exception() | |
537 | self.log.error("Bad Message Type: %r", msg_type, exc_info=True) |
|
537 | self.log.error("Bad Message Type: %r", msg_type, exc_info=True) | |
538 | self.session.send(self.query, "hub_error", ident=client_id, |
|
538 | self.session.send(self.query, "hub_error", ident=client_id, | |
539 | content=content) |
|
539 | content=content) | |
540 | return |
|
540 | return | |
541 |
|
541 | |||
542 | else: |
|
542 | else: | |
543 | handler(idents, msg) |
|
543 | handler(idents, msg) | |
544 |
|
544 | |||
545 | def dispatch_db(self, msg): |
|
545 | def dispatch_db(self, msg): | |
546 | """""" |
|
546 | """""" | |
547 | raise NotImplementedError |
|
547 | raise NotImplementedError | |
548 |
|
548 | |||
549 | #--------------------------------------------------------------------------- |
|
549 | #--------------------------------------------------------------------------- | |
550 | # handler methods (1 per event) |
|
550 | # handler methods (1 per event) | |
551 | #--------------------------------------------------------------------------- |
|
551 | #--------------------------------------------------------------------------- | |
552 |
|
552 | |||
553 | #----------------------- Heartbeat -------------------------------------- |
|
553 | #----------------------- Heartbeat -------------------------------------- | |
554 |
|
554 | |||
555 | def handle_new_heart(self, heart): |
|
555 | def handle_new_heart(self, heart): | |
556 | """handler to attach to heartbeater. |
|
556 | """handler to attach to heartbeater. | |
557 | Called when a new heart starts to beat. |
|
557 | Called when a new heart starts to beat. | |
558 | Triggers completion of registration.""" |
|
558 | Triggers completion of registration.""" | |
559 | self.log.debug("heartbeat::handle_new_heart(%r)", heart) |
|
559 | self.log.debug("heartbeat::handle_new_heart(%r)", heart) | |
560 | if heart not in self.incoming_registrations: |
|
560 | if heart not in self.incoming_registrations: | |
561 | self.log.info("heartbeat::ignoring new heart: %r", heart) |
|
561 | self.log.info("heartbeat::ignoring new heart: %r", heart) | |
562 | else: |
|
562 | else: | |
563 | self.finish_registration(heart) |
|
563 | self.finish_registration(heart) | |
564 |
|
564 | |||
565 |
|
565 | |||
566 | def handle_heart_failure(self, heart): |
|
566 | def handle_heart_failure(self, heart): | |
567 | """handler to attach to heartbeater. |
|
567 | """handler to attach to heartbeater. | |
568 | called when a previously registered heart fails to respond to beat request. |
|
568 | called when a previously registered heart fails to respond to beat request. | |
569 | triggers unregistration""" |
|
569 | triggers unregistration""" | |
570 | self.log.debug("heartbeat::handle_heart_failure(%r)", heart) |
|
570 | self.log.debug("heartbeat::handle_heart_failure(%r)", heart) | |
571 | eid = self.hearts.get(heart, None) |
|
571 | eid = self.hearts.get(heart, None) | |
572 | uuid = self.engines[eid].uuid |
|
572 | uuid = self.engines[eid].uuid | |
573 | if eid is None or self.keytable[eid] in self.dead_engines: |
|
573 | if eid is None or self.keytable[eid] in self.dead_engines: | |
574 | self.log.info("heartbeat::ignoring heart failure %r (not an engine or already dead)", heart) |
|
574 | self.log.info("heartbeat::ignoring heart failure %r (not an engine or already dead)", heart) | |
575 | else: |
|
575 | else: | |
576 | self.unregister_engine(heart, dict(content=dict(id=eid, queue=uuid))) |
|
576 | self.unregister_engine(heart, dict(content=dict(id=eid, queue=uuid))) | |
577 |
|
577 | |||
578 | #----------------------- MUX Queue Traffic ------------------------------ |
|
578 | #----------------------- MUX Queue Traffic ------------------------------ | |
579 |
|
579 | |||
580 | def save_queue_request(self, idents, msg): |
|
580 | def save_queue_request(self, idents, msg): | |
581 | if len(idents) < 2: |
|
581 | if len(idents) < 2: | |
582 | self.log.error("invalid identity prefix: %r", idents) |
|
582 | self.log.error("invalid identity prefix: %r", idents) | |
583 | return |
|
583 | return | |
584 | queue_id, client_id = idents[:2] |
|
584 | queue_id, client_id = idents[:2] | |
585 | try: |
|
585 | try: | |
586 | msg = self.session.unserialize(msg) |
|
586 | msg = self.session.unserialize(msg) | |
587 | except Exception: |
|
587 | except Exception: | |
588 | self.log.error("queue::client %r sent invalid message to %r: %r", client_id, queue_id, msg, exc_info=True) |
|
588 | self.log.error("queue::client %r sent invalid message to %r: %r", client_id, queue_id, msg, exc_info=True) | |
589 | return |
|
589 | return | |
590 |
|
590 | |||
591 | eid = self.by_ident.get(queue_id, None) |
|
591 | eid = self.by_ident.get(queue_id, None) | |
592 | if eid is None: |
|
592 | if eid is None: | |
593 | self.log.error("queue::target %r not registered", queue_id) |
|
593 | self.log.error("queue::target %r not registered", queue_id) | |
594 | self.log.debug("queue:: valid are: %r", self.by_ident.keys()) |
|
594 | self.log.debug("queue:: valid are: %r", self.by_ident.keys()) | |
595 | return |
|
595 | return | |
596 | record = init_record(msg) |
|
596 | record = init_record(msg) | |
597 | msg_id = record['msg_id'] |
|
597 | msg_id = record['msg_id'] | |
598 | self.log.info("queue::client %r submitted request %r to %s", client_id, msg_id, eid) |
|
598 | self.log.info("queue::client %r submitted request %r to %s", client_id, msg_id, eid) | |
599 | # Unicode in records |
|
599 | # Unicode in records | |
600 | record['engine_uuid'] = queue_id.decode('ascii') |
|
600 | record['engine_uuid'] = queue_id.decode('ascii') | |
601 | record['client_uuid'] = msg['header']['session'] |
|
601 | record['client_uuid'] = msg['header']['session'] | |
602 | record['queue'] = 'mux' |
|
602 | record['queue'] = 'mux' | |
603 |
|
603 | |||
604 | try: |
|
604 | try: | |
605 | # it's posible iopub arrived first: |
|
605 | # it's posible iopub arrived first: | |
606 | existing = self.db.get_record(msg_id) |
|
606 | existing = self.db.get_record(msg_id) | |
607 | for key,evalue in existing.iteritems(): |
|
607 | for key,evalue in existing.iteritems(): | |
608 | rvalue = record.get(key, None) |
|
608 | rvalue = record.get(key, None) | |
609 | if evalue and rvalue and evalue != rvalue: |
|
609 | if evalue and rvalue and evalue != rvalue: | |
610 | self.log.warn("conflicting initial state for record: %r:%r <%r> %r", msg_id, rvalue, key, evalue) |
|
610 | self.log.warn("conflicting initial state for record: %r:%r <%r> %r", msg_id, rvalue, key, evalue) | |
611 | elif evalue and not rvalue: |
|
611 | elif evalue and not rvalue: | |
612 | record[key] = evalue |
|
612 | record[key] = evalue | |
613 | try: |
|
613 | try: | |
614 | self.db.update_record(msg_id, record) |
|
614 | self.db.update_record(msg_id, record) | |
615 | except Exception: |
|
615 | except Exception: | |
616 | self.log.error("DB Error updating record %r", msg_id, exc_info=True) |
|
616 | self.log.error("DB Error updating record %r", msg_id, exc_info=True) | |
617 | except KeyError: |
|
617 | except KeyError: | |
618 | try: |
|
618 | try: | |
619 | self.db.add_record(msg_id, record) |
|
619 | self.db.add_record(msg_id, record) | |
620 | except Exception: |
|
620 | except Exception: | |
621 | self.log.error("DB Error adding record %r", msg_id, exc_info=True) |
|
621 | self.log.error("DB Error adding record %r", msg_id, exc_info=True) | |
622 |
|
622 | |||
623 |
|
623 | |||
624 | self.pending.add(msg_id) |
|
624 | self.pending.add(msg_id) | |
625 | self.queues[eid].append(msg_id) |
|
625 | self.queues[eid].append(msg_id) | |
626 |
|
626 | |||
627 | def save_queue_result(self, idents, msg): |
|
627 | def save_queue_result(self, idents, msg): | |
628 | if len(idents) < 2: |
|
628 | if len(idents) < 2: | |
629 | self.log.error("invalid identity prefix: %r", idents) |
|
629 | self.log.error("invalid identity prefix: %r", idents) | |
630 | return |
|
630 | return | |
631 |
|
631 | |||
632 | client_id, queue_id = idents[:2] |
|
632 | client_id, queue_id = idents[:2] | |
633 | try: |
|
633 | try: | |
634 | msg = self.session.unserialize(msg) |
|
634 | msg = self.session.unserialize(msg) | |
635 | except Exception: |
|
635 | except Exception: | |
636 | self.log.error("queue::engine %r sent invalid message to %r: %r", |
|
636 | self.log.error("queue::engine %r sent invalid message to %r: %r", | |
637 | queue_id, client_id, msg, exc_info=True) |
|
637 | queue_id, client_id, msg, exc_info=True) | |
638 | return |
|
638 | return | |
639 |
|
639 | |||
640 | eid = self.by_ident.get(queue_id, None) |
|
640 | eid = self.by_ident.get(queue_id, None) | |
641 | if eid is None: |
|
641 | if eid is None: | |
642 | self.log.error("queue::unknown engine %r is sending a reply: ", queue_id) |
|
642 | self.log.error("queue::unknown engine %r is sending a reply: ", queue_id) | |
643 | return |
|
643 | return | |
644 |
|
644 | |||
645 | parent = msg['parent_header'] |
|
645 | parent = msg['parent_header'] | |
646 | if not parent: |
|
646 | if not parent: | |
647 | return |
|
647 | return | |
648 | msg_id = parent['msg_id'] |
|
648 | msg_id = parent['msg_id'] | |
649 | if msg_id in self.pending: |
|
649 | if msg_id in self.pending: | |
650 | self.pending.remove(msg_id) |
|
650 | self.pending.remove(msg_id) | |
651 | self.all_completed.add(msg_id) |
|
651 | self.all_completed.add(msg_id) | |
652 | self.queues[eid].remove(msg_id) |
|
652 | self.queues[eid].remove(msg_id) | |
653 | self.completed[eid].append(msg_id) |
|
653 | self.completed[eid].append(msg_id) | |
654 | self.log.info("queue::request %r completed on %s", msg_id, eid) |
|
654 | self.log.info("queue::request %r completed on %s", msg_id, eid) | |
655 | elif msg_id not in self.all_completed: |
|
655 | elif msg_id not in self.all_completed: | |
656 | # it could be a result from a dead engine that died before delivering the |
|
656 | # it could be a result from a dead engine that died before delivering the | |
657 | # result |
|
657 | # result | |
658 | self.log.warn("queue:: unknown msg finished %r", msg_id) |
|
658 | self.log.warn("queue:: unknown msg finished %r", msg_id) | |
659 | return |
|
659 | return | |
660 | # update record anyway, because the unregistration could have been premature |
|
660 | # update record anyway, because the unregistration could have been premature | |
661 | rheader = msg['header'] |
|
661 | rheader = msg['header'] | |
662 | md = msg['metadata'] |
|
662 | md = msg['metadata'] | |
663 | completed = rheader['date'] |
|
663 | completed = rheader['date'] | |
664 | started = md.get('started', None) |
|
664 | started = md.get('started', None) | |
665 | result = { |
|
665 | result = { | |
666 | 'result_header' : rheader, |
|
666 | 'result_header' : rheader, | |
667 | 'result_metadata': md, |
|
667 | 'result_metadata': md, | |
668 | 'result_content': msg['content'], |
|
668 | 'result_content': msg['content'], | |
669 | 'received': datetime.now(), |
|
669 | 'received': datetime.now(), | |
670 | 'started' : started, |
|
670 | 'started' : started, | |
671 | 'completed' : completed |
|
671 | 'completed' : completed | |
672 | } |
|
672 | } | |
673 |
|
673 | |||
674 | result['result_buffers'] = msg['buffers'] |
|
674 | result['result_buffers'] = msg['buffers'] | |
675 | try: |
|
675 | try: | |
676 | self.db.update_record(msg_id, result) |
|
676 | self.db.update_record(msg_id, result) | |
677 | except Exception: |
|
677 | except Exception: | |
678 | self.log.error("DB Error updating record %r", msg_id, exc_info=True) |
|
678 | self.log.error("DB Error updating record %r", msg_id, exc_info=True) | |
679 |
|
679 | |||
680 |
|
680 | |||
681 | #--------------------- Task Queue Traffic ------------------------------ |
|
681 | #--------------------- Task Queue Traffic ------------------------------ | |
682 |
|
682 | |||
683 | def save_task_request(self, idents, msg): |
|
683 | def save_task_request(self, idents, msg): | |
684 | """Save the submission of a task.""" |
|
684 | """Save the submission of a task.""" | |
685 | client_id = idents[0] |
|
685 | client_id = idents[0] | |
686 |
|
686 | |||
687 | try: |
|
687 | try: | |
688 | msg = self.session.unserialize(msg) |
|
688 | msg = self.session.unserialize(msg) | |
689 | except Exception: |
|
689 | except Exception: | |
690 | self.log.error("task::client %r sent invalid task message: %r", |
|
690 | self.log.error("task::client %r sent invalid task message: %r", | |
691 | client_id, msg, exc_info=True) |
|
691 | client_id, msg, exc_info=True) | |
692 | return |
|
692 | return | |
693 | record = init_record(msg) |
|
693 | record = init_record(msg) | |
694 |
|
694 | |||
695 | record['client_uuid'] = msg['header']['session'] |
|
695 | record['client_uuid'] = msg['header']['session'] | |
696 | record['queue'] = 'task' |
|
696 | record['queue'] = 'task' | |
697 | header = msg['header'] |
|
697 | header = msg['header'] | |
698 | msg_id = header['msg_id'] |
|
698 | msg_id = header['msg_id'] | |
699 | self.pending.add(msg_id) |
|
699 | self.pending.add(msg_id) | |
700 | self.unassigned.add(msg_id) |
|
700 | self.unassigned.add(msg_id) | |
701 | try: |
|
701 | try: | |
702 | # it's posible iopub arrived first: |
|
702 | # it's posible iopub arrived first: | |
703 | existing = self.db.get_record(msg_id) |
|
703 | existing = self.db.get_record(msg_id) | |
704 | if existing['resubmitted']: |
|
704 | if existing['resubmitted']: | |
705 | for key in ('submitted', 'client_uuid', 'buffers'): |
|
705 | for key in ('submitted', 'client_uuid', 'buffers'): | |
706 | # don't clobber these keys on resubmit |
|
706 | # don't clobber these keys on resubmit | |
707 | # submitted and client_uuid should be different |
|
707 | # submitted and client_uuid should be different | |
708 | # and buffers might be big, and shouldn't have changed |
|
708 | # and buffers might be big, and shouldn't have changed | |
709 | record.pop(key) |
|
709 | record.pop(key) | |
710 | # still check content,header which should not change |
|
710 | # still check content,header which should not change | |
711 | # but are not expensive to compare as buffers |
|
711 | # but are not expensive to compare as buffers | |
712 |
|
712 | |||
713 | for key,evalue in existing.iteritems(): |
|
713 | for key,evalue in existing.iteritems(): | |
714 | if key.endswith('buffers'): |
|
714 | if key.endswith('buffers'): | |
715 | # don't compare buffers |
|
715 | # don't compare buffers | |
716 | continue |
|
716 | continue | |
717 | rvalue = record.get(key, None) |
|
717 | rvalue = record.get(key, None) | |
718 | if evalue and rvalue and evalue != rvalue: |
|
718 | if evalue and rvalue and evalue != rvalue: | |
719 | self.log.warn("conflicting initial state for record: %r:%r <%r> %r", msg_id, rvalue, key, evalue) |
|
719 | self.log.warn("conflicting initial state for record: %r:%r <%r> %r", msg_id, rvalue, key, evalue) | |
720 | elif evalue and not rvalue: |
|
720 | elif evalue and not rvalue: | |
721 | record[key] = evalue |
|
721 | record[key] = evalue | |
722 | try: |
|
722 | try: | |
723 | self.db.update_record(msg_id, record) |
|
723 | self.db.update_record(msg_id, record) | |
724 | except Exception: |
|
724 | except Exception: | |
725 | self.log.error("DB Error updating record %r", msg_id, exc_info=True) |
|
725 | self.log.error("DB Error updating record %r", msg_id, exc_info=True) | |
726 | except KeyError: |
|
726 | except KeyError: | |
727 | try: |
|
727 | try: | |
728 | self.db.add_record(msg_id, record) |
|
728 | self.db.add_record(msg_id, record) | |
729 | except Exception: |
|
729 | except Exception: | |
730 | self.log.error("DB Error adding record %r", msg_id, exc_info=True) |
|
730 | self.log.error("DB Error adding record %r", msg_id, exc_info=True) | |
731 | except Exception: |
|
731 | except Exception: | |
732 | self.log.error("DB Error saving task request %r", msg_id, exc_info=True) |
|
732 | self.log.error("DB Error saving task request %r", msg_id, exc_info=True) | |
733 |
|
733 | |||
734 | def save_task_result(self, idents, msg): |
|
734 | def save_task_result(self, idents, msg): | |
735 | """save the result of a completed task.""" |
|
735 | """save the result of a completed task.""" | |
736 | client_id = idents[0] |
|
736 | client_id = idents[0] | |
737 | try: |
|
737 | try: | |
738 | msg = self.session.unserialize(msg) |
|
738 | msg = self.session.unserialize(msg) | |
739 | except Exception: |
|
739 | except Exception: | |
740 | self.log.error("task::invalid task result message send to %r: %r", |
|
740 | self.log.error("task::invalid task result message send to %r: %r", | |
741 | client_id, msg, exc_info=True) |
|
741 | client_id, msg, exc_info=True) | |
742 | return |
|
742 | return | |
743 |
|
743 | |||
744 | parent = msg['parent_header'] |
|
744 | parent = msg['parent_header'] | |
745 | if not parent: |
|
745 | if not parent: | |
746 | # print msg |
|
746 | # print msg | |
747 | self.log.warn("Task %r had no parent!", msg) |
|
747 | self.log.warn("Task %r had no parent!", msg) | |
748 | return |
|
748 | return | |
749 | msg_id = parent['msg_id'] |
|
749 | msg_id = parent['msg_id'] | |
750 | if msg_id in self.unassigned: |
|
750 | if msg_id in self.unassigned: | |
751 | self.unassigned.remove(msg_id) |
|
751 | self.unassigned.remove(msg_id) | |
752 |
|
752 | |||
753 | header = msg['header'] |
|
753 | header = msg['header'] | |
754 | md = msg['metadata'] |
|
754 | md = msg['metadata'] | |
755 | engine_uuid = md.get('engine', u'') |
|
755 | engine_uuid = md.get('engine', u'') | |
756 | eid = self.by_ident.get(cast_bytes(engine_uuid), None) |
|
756 | eid = self.by_ident.get(cast_bytes(engine_uuid), None) | |
757 |
|
757 | |||
758 | status = md.get('status', None) |
|
758 | status = md.get('status', None) | |
759 |
|
759 | |||
760 | if msg_id in self.pending: |
|
760 | if msg_id in self.pending: | |
761 | self.log.info("task::task %r finished on %s", msg_id, eid) |
|
761 | self.log.info("task::task %r finished on %s", msg_id, eid) | |
762 | self.pending.remove(msg_id) |
|
762 | self.pending.remove(msg_id) | |
763 | self.all_completed.add(msg_id) |
|
763 | self.all_completed.add(msg_id) | |
764 | if eid is not None: |
|
764 | if eid is not None: | |
765 | if status != 'aborted': |
|
765 | if status != 'aborted': | |
766 | self.completed[eid].append(msg_id) |
|
766 | self.completed[eid].append(msg_id) | |
767 | if msg_id in self.tasks[eid]: |
|
767 | if msg_id in self.tasks[eid]: | |
768 | self.tasks[eid].remove(msg_id) |
|
768 | self.tasks[eid].remove(msg_id) | |
769 | completed = header['date'] |
|
769 | completed = header['date'] | |
770 | started = md.get('started', None) |
|
770 | started = md.get('started', None) | |
771 | result = { |
|
771 | result = { | |
772 | 'result_header' : header, |
|
772 | 'result_header' : header, | |
773 | 'result_metadata': msg['metadata'], |
|
773 | 'result_metadata': msg['metadata'], | |
774 | 'result_content': msg['content'], |
|
774 | 'result_content': msg['content'], | |
775 | 'started' : started, |
|
775 | 'started' : started, | |
776 | 'completed' : completed, |
|
776 | 'completed' : completed, | |
777 | 'received' : datetime.now(), |
|
777 | 'received' : datetime.now(), | |
778 | 'engine_uuid': engine_uuid, |
|
778 | 'engine_uuid': engine_uuid, | |
779 | } |
|
779 | } | |
780 |
|
780 | |||
781 | result['result_buffers'] = msg['buffers'] |
|
781 | result['result_buffers'] = msg['buffers'] | |
782 | try: |
|
782 | try: | |
783 | self.db.update_record(msg_id, result) |
|
783 | self.db.update_record(msg_id, result) | |
784 | except Exception: |
|
784 | except Exception: | |
785 | self.log.error("DB Error saving task request %r", msg_id, exc_info=True) |
|
785 | self.log.error("DB Error saving task request %r", msg_id, exc_info=True) | |
786 |
|
786 | |||
787 | else: |
|
787 | else: | |
788 | self.log.debug("task::unknown task %r finished", msg_id) |
|
788 | self.log.debug("task::unknown task %r finished", msg_id) | |
789 |
|
789 | |||
790 | def save_task_destination(self, idents, msg): |
|
790 | def save_task_destination(self, idents, msg): | |
791 | try: |
|
791 | try: | |
792 | msg = self.session.unserialize(msg, content=True) |
|
792 | msg = self.session.unserialize(msg, content=True) | |
793 | except Exception: |
|
793 | except Exception: | |
794 | self.log.error("task::invalid task tracking message", exc_info=True) |
|
794 | self.log.error("task::invalid task tracking message", exc_info=True) | |
795 | return |
|
795 | return | |
796 | content = msg['content'] |
|
796 | content = msg['content'] | |
797 | # print (content) |
|
797 | # print (content) | |
798 | msg_id = content['msg_id'] |
|
798 | msg_id = content['msg_id'] | |
799 | engine_uuid = content['engine_id'] |
|
799 | engine_uuid = content['engine_id'] | |
800 | eid = self.by_ident[cast_bytes(engine_uuid)] |
|
800 | eid = self.by_ident[cast_bytes(engine_uuid)] | |
801 |
|
801 | |||
802 | self.log.info("task::task %r arrived on %r", msg_id, eid) |
|
802 | self.log.info("task::task %r arrived on %r", msg_id, eid) | |
803 | if msg_id in self.unassigned: |
|
803 | if msg_id in self.unassigned: | |
804 | self.unassigned.remove(msg_id) |
|
804 | self.unassigned.remove(msg_id) | |
805 | # else: |
|
805 | # else: | |
806 | # self.log.debug("task::task %r not listed as MIA?!"%(msg_id)) |
|
806 | # self.log.debug("task::task %r not listed as MIA?!"%(msg_id)) | |
807 |
|
807 | |||
808 | self.tasks[eid].append(msg_id) |
|
808 | self.tasks[eid].append(msg_id) | |
809 | # self.pending[msg_id][1].update(received=datetime.now(),engine=(eid,engine_uuid)) |
|
809 | # self.pending[msg_id][1].update(received=datetime.now(),engine=(eid,engine_uuid)) | |
810 | try: |
|
810 | try: | |
811 | self.db.update_record(msg_id, dict(engine_uuid=engine_uuid)) |
|
811 | self.db.update_record(msg_id, dict(engine_uuid=engine_uuid)) | |
812 | except Exception: |
|
812 | except Exception: | |
813 | self.log.error("DB Error saving task destination %r", msg_id, exc_info=True) |
|
813 | self.log.error("DB Error saving task destination %r", msg_id, exc_info=True) | |
814 |
|
814 | |||
815 |
|
815 | |||
816 | def mia_task_request(self, idents, msg): |
|
816 | def mia_task_request(self, idents, msg): | |
817 | raise NotImplementedError |
|
817 | raise NotImplementedError | |
818 | client_id = idents[0] |
|
818 | client_id = idents[0] | |
819 | # content = dict(mia=self.mia,status='ok') |
|
819 | # content = dict(mia=self.mia,status='ok') | |
820 | # self.session.send('mia_reply', content=content, idents=client_id) |
|
820 | # self.session.send('mia_reply', content=content, idents=client_id) | |
821 |
|
821 | |||
822 |
|
822 | |||
823 | #--------------------- IOPub Traffic ------------------------------ |
|
823 | #--------------------- IOPub Traffic ------------------------------ | |
824 |
|
824 | |||
825 | def save_iopub_message(self, topics, msg): |
|
825 | def save_iopub_message(self, topics, msg): | |
826 | """save an iopub message into the db""" |
|
826 | """save an iopub message into the db""" | |
827 | # print (topics) |
|
827 | # print (topics) | |
828 | try: |
|
828 | try: | |
829 | msg = self.session.unserialize(msg, content=True) |
|
829 | msg = self.session.unserialize(msg, content=True) | |
830 | except Exception: |
|
830 | except Exception: | |
831 | self.log.error("iopub::invalid IOPub message", exc_info=True) |
|
831 | self.log.error("iopub::invalid IOPub message", exc_info=True) | |
832 | return |
|
832 | return | |
833 |
|
833 | |||
834 | parent = msg['parent_header'] |
|
834 | parent = msg['parent_header'] | |
835 | if not parent: |
|
835 | if not parent: | |
836 | self.log.warn("iopub::IOPub message lacks parent: %r", msg) |
|
836 | self.log.warn("iopub::IOPub message lacks parent: %r", msg) | |
837 | return |
|
837 | return | |
838 | msg_id = parent['msg_id'] |
|
838 | msg_id = parent['msg_id'] | |
839 | msg_type = msg['header']['msg_type'] |
|
839 | msg_type = msg['header']['msg_type'] | |
840 | content = msg['content'] |
|
840 | content = msg['content'] | |
841 |
|
841 | |||
842 | # ensure msg_id is in db |
|
842 | # ensure msg_id is in db | |
843 | try: |
|
843 | try: | |
844 | rec = self.db.get_record(msg_id) |
|
844 | rec = self.db.get_record(msg_id) | |
845 | except KeyError: |
|
845 | except KeyError: | |
846 | rec = empty_record() |
|
846 | rec = empty_record() | |
847 | rec['msg_id'] = msg_id |
|
847 | rec['msg_id'] = msg_id | |
848 | self.db.add_record(msg_id, rec) |
|
848 | self.db.add_record(msg_id, rec) | |
849 | # stream |
|
849 | # stream | |
850 | d = {} |
|
850 | d = {} | |
851 | if msg_type == 'stream': |
|
851 | if msg_type == 'stream': | |
852 | name = content['name'] |
|
852 | name = content['name'] | |
853 | s = rec[name] or '' |
|
853 | s = rec[name] or '' | |
854 | d[name] = s + content['data'] |
|
854 | d[name] = s + content['data'] | |
855 |
|
855 | |||
856 | elif msg_type == 'pyerr': |
|
856 | elif msg_type == 'pyerr': | |
857 | d['pyerr'] = content |
|
857 | d['pyerr'] = content | |
858 | elif msg_type == 'pyin': |
|
858 | elif msg_type == 'pyin': | |
859 | d['pyin'] = content['code'] |
|
859 | d['pyin'] = content['code'] | |
860 | elif msg_type in ('display_data', 'pyout'): |
|
860 | elif msg_type in ('display_data', 'pyout'): | |
861 | d[msg_type] = content |
|
861 | d[msg_type] = content | |
862 | elif msg_type == 'status': |
|
862 | elif msg_type == 'status': | |
863 | pass |
|
863 | pass | |
864 | elif msg_type == 'data_pub': |
|
864 | elif msg_type == 'data_pub': | |
865 | self.log.info("ignored data_pub message for %s" % msg_id) |
|
865 | self.log.info("ignored data_pub message for %s" % msg_id) | |
866 | else: |
|
866 | else: | |
867 | self.log.warn("unhandled iopub msg_type: %r", msg_type) |
|
867 | self.log.warn("unhandled iopub msg_type: %r", msg_type) | |
868 |
|
868 | |||
869 | if not d: |
|
869 | if not d: | |
870 | return |
|
870 | return | |
871 |
|
871 | |||
872 | try: |
|
872 | try: | |
873 | self.db.update_record(msg_id, d) |
|
873 | self.db.update_record(msg_id, d) | |
874 | except Exception: |
|
874 | except Exception: | |
875 | self.log.error("DB Error saving iopub message %r", msg_id, exc_info=True) |
|
875 | self.log.error("DB Error saving iopub message %r", msg_id, exc_info=True) | |
876 |
|
876 | |||
877 |
|
877 | |||
878 |
|
878 | |||
879 | #------------------------------------------------------------------------- |
|
879 | #------------------------------------------------------------------------- | |
880 | # Registration requests |
|
880 | # Registration requests | |
881 | #------------------------------------------------------------------------- |
|
881 | #------------------------------------------------------------------------- | |
882 |
|
882 | |||
883 | def connection_request(self, client_id, msg): |
|
883 | def connection_request(self, client_id, msg): | |
884 | """Reply with connection addresses for clients.""" |
|
884 | """Reply with connection addresses for clients.""" | |
885 | self.log.info("client::client %r connected", client_id) |
|
885 | self.log.info("client::client %r connected", client_id) | |
886 | content = dict(status='ok') |
|
886 | content = dict(status='ok') | |
887 | jsonable = {} |
|
887 | jsonable = {} | |
888 | for k,v in self.keytable.iteritems(): |
|
888 | for k,v in self.keytable.iteritems(): | |
889 | if v not in self.dead_engines: |
|
889 | if v not in self.dead_engines: | |
890 | jsonable[str(k)] = v |
|
890 | jsonable[str(k)] = v | |
891 | content['engines'] = jsonable |
|
891 | content['engines'] = jsonable | |
892 | self.session.send(self.query, 'connection_reply', content, parent=msg, ident=client_id) |
|
892 | self.session.send(self.query, 'connection_reply', content, parent=msg, ident=client_id) | |
893 |
|
893 | |||
894 | def register_engine(self, reg, msg): |
|
894 | def register_engine(self, reg, msg): | |
895 | """Register a new engine.""" |
|
895 | """Register a new engine.""" | |
896 | content = msg['content'] |
|
896 | content = msg['content'] | |
897 | try: |
|
897 | try: | |
898 | uuid = content['uuid'] |
|
898 | uuid = content['uuid'] | |
899 | except KeyError: |
|
899 | except KeyError: | |
900 | self.log.error("registration::queue not specified", exc_info=True) |
|
900 | self.log.error("registration::queue not specified", exc_info=True) | |
901 | return |
|
901 | return | |
902 |
|
902 | |||
903 | eid = self._next_id |
|
903 | eid = self._next_id | |
904 |
|
904 | |||
905 | self.log.debug("registration::register_engine(%i, %r)", eid, uuid) |
|
905 | self.log.debug("registration::register_engine(%i, %r)", eid, uuid) | |
906 |
|
906 | |||
907 | content = dict(id=eid,status='ok') |
|
907 | content = dict(id=eid,status='ok',hb_period=self.heartmonitor.period) | |
908 | # check if requesting available IDs: |
|
908 | # check if requesting available IDs: | |
909 | if cast_bytes(uuid) in self.by_ident: |
|
909 | if cast_bytes(uuid) in self.by_ident: | |
910 | try: |
|
910 | try: | |
911 | raise KeyError("uuid %r in use" % uuid) |
|
911 | raise KeyError("uuid %r in use" % uuid) | |
912 | except: |
|
912 | except: | |
913 | content = error.wrap_exception() |
|
913 | content = error.wrap_exception() | |
914 | self.log.error("uuid %r in use", uuid, exc_info=True) |
|
914 | self.log.error("uuid %r in use", uuid, exc_info=True) | |
915 | else: |
|
915 | else: | |
916 | for h, ec in self.incoming_registrations.iteritems(): |
|
916 | for h, ec in self.incoming_registrations.iteritems(): | |
917 | if uuid == h: |
|
917 | if uuid == h: | |
918 | try: |
|
918 | try: | |
919 | raise KeyError("heart_id %r in use" % uuid) |
|
919 | raise KeyError("heart_id %r in use" % uuid) | |
920 | except: |
|
920 | except: | |
921 | self.log.error("heart_id %r in use", uuid, exc_info=True) |
|
921 | self.log.error("heart_id %r in use", uuid, exc_info=True) | |
922 | content = error.wrap_exception() |
|
922 | content = error.wrap_exception() | |
923 | break |
|
923 | break | |
924 | elif uuid == ec.uuid: |
|
924 | elif uuid == ec.uuid: | |
925 | try: |
|
925 | try: | |
926 | raise KeyError("uuid %r in use" % uuid) |
|
926 | raise KeyError("uuid %r in use" % uuid) | |
927 | except: |
|
927 | except: | |
928 | self.log.error("uuid %r in use", uuid, exc_info=True) |
|
928 | self.log.error("uuid %r in use", uuid, exc_info=True) | |
929 | content = error.wrap_exception() |
|
929 | content = error.wrap_exception() | |
930 | break |
|
930 | break | |
931 |
|
931 | |||
932 | msg = self.session.send(self.query, "registration_reply", |
|
932 | msg = self.session.send(self.query, "registration_reply", | |
933 | content=content, |
|
933 | content=content, | |
934 | ident=reg) |
|
934 | ident=reg) | |
935 |
|
935 | |||
936 | heart = cast_bytes(uuid) |
|
936 | heart = cast_bytes(uuid) | |
937 |
|
937 | |||
938 | if content['status'] == 'ok': |
|
938 | if content['status'] == 'ok': | |
939 | if heart in self.heartmonitor.hearts: |
|
939 | if heart in self.heartmonitor.hearts: | |
940 | # already beating |
|
940 | # already beating | |
941 | self.incoming_registrations[heart] = EngineConnector(id=eid,uuid=uuid) |
|
941 | self.incoming_registrations[heart] = EngineConnector(id=eid,uuid=uuid) | |
942 | self.finish_registration(heart) |
|
942 | self.finish_registration(heart) | |
943 | else: |
|
943 | else: | |
944 | purge = lambda : self._purge_stalled_registration(heart) |
|
944 | purge = lambda : self._purge_stalled_registration(heart) | |
945 | dc = ioloop.DelayedCallback(purge, self.registration_timeout, self.loop) |
|
945 | dc = ioloop.DelayedCallback(purge, self.registration_timeout, self.loop) | |
946 | dc.start() |
|
946 | dc.start() | |
947 | self.incoming_registrations[heart] = EngineConnector(id=eid,uuid=uuid,stallback=dc) |
|
947 | self.incoming_registrations[heart] = EngineConnector(id=eid,uuid=uuid,stallback=dc) | |
948 | else: |
|
948 | else: | |
949 | self.log.error("registration::registration %i failed: %r", eid, content['evalue']) |
|
949 | self.log.error("registration::registration %i failed: %r", eid, content['evalue']) | |
950 |
|
950 | |||
951 | return eid |
|
951 | return eid | |
952 |
|
952 | |||
953 | def unregister_engine(self, ident, msg): |
|
953 | def unregister_engine(self, ident, msg): | |
954 | """Unregister an engine that explicitly requested to leave.""" |
|
954 | """Unregister an engine that explicitly requested to leave.""" | |
955 | try: |
|
955 | try: | |
956 | eid = msg['content']['id'] |
|
956 | eid = msg['content']['id'] | |
957 | except: |
|
957 | except: | |
958 | self.log.error("registration::bad engine id for unregistration: %r", ident, exc_info=True) |
|
958 | self.log.error("registration::bad engine id for unregistration: %r", ident, exc_info=True) | |
959 | return |
|
959 | return | |
960 | self.log.info("registration::unregister_engine(%r)", eid) |
|
960 | self.log.info("registration::unregister_engine(%r)", eid) | |
961 | # print (eid) |
|
961 | # print (eid) | |
962 | uuid = self.keytable[eid] |
|
962 | uuid = self.keytable[eid] | |
963 | content=dict(id=eid, uuid=uuid) |
|
963 | content=dict(id=eid, uuid=uuid) | |
964 | self.dead_engines.add(uuid) |
|
964 | self.dead_engines.add(uuid) | |
965 | # self.ids.remove(eid) |
|
965 | # self.ids.remove(eid) | |
966 | # uuid = self.keytable.pop(eid) |
|
966 | # uuid = self.keytable.pop(eid) | |
967 | # |
|
967 | # | |
968 | # ec = self.engines.pop(eid) |
|
968 | # ec = self.engines.pop(eid) | |
969 | # self.hearts.pop(ec.heartbeat) |
|
969 | # self.hearts.pop(ec.heartbeat) | |
970 | # self.by_ident.pop(ec.queue) |
|
970 | # self.by_ident.pop(ec.queue) | |
971 | # self.completed.pop(eid) |
|
971 | # self.completed.pop(eid) | |
972 | handleit = lambda : self._handle_stranded_msgs(eid, uuid) |
|
972 | handleit = lambda : self._handle_stranded_msgs(eid, uuid) | |
973 | dc = ioloop.DelayedCallback(handleit, self.registration_timeout, self.loop) |
|
973 | dc = ioloop.DelayedCallback(handleit, self.registration_timeout, self.loop) | |
974 | dc.start() |
|
974 | dc.start() | |
975 | ############## TODO: HANDLE IT ################ |
|
975 | ############## TODO: HANDLE IT ################ | |
976 |
|
976 | |||
977 | self._save_engine_state() |
|
977 | self._save_engine_state() | |
978 |
|
978 | |||
979 | if self.notifier: |
|
979 | if self.notifier: | |
980 | self.session.send(self.notifier, "unregistration_notification", content=content) |
|
980 | self.session.send(self.notifier, "unregistration_notification", content=content) | |
981 |
|
981 | |||
982 | def _handle_stranded_msgs(self, eid, uuid): |
|
982 | def _handle_stranded_msgs(self, eid, uuid): | |
983 | """Handle messages known to be on an engine when the engine unregisters. |
|
983 | """Handle messages known to be on an engine when the engine unregisters. | |
984 |
|
984 | |||
985 | It is possible that this will fire prematurely - that is, an engine will |
|
985 | It is possible that this will fire prematurely - that is, an engine will | |
986 | go down after completing a result, and the client will be notified |
|
986 | go down after completing a result, and the client will be notified | |
987 | that the result failed and later receive the actual result. |
|
987 | that the result failed and later receive the actual result. | |
988 | """ |
|
988 | """ | |
989 |
|
989 | |||
990 | outstanding = self.queues[eid] |
|
990 | outstanding = self.queues[eid] | |
991 |
|
991 | |||
992 | for msg_id in outstanding: |
|
992 | for msg_id in outstanding: | |
993 | self.pending.remove(msg_id) |
|
993 | self.pending.remove(msg_id) | |
994 | self.all_completed.add(msg_id) |
|
994 | self.all_completed.add(msg_id) | |
995 | try: |
|
995 | try: | |
996 | raise error.EngineError("Engine %r died while running task %r" % (eid, msg_id)) |
|
996 | raise error.EngineError("Engine %r died while running task %r" % (eid, msg_id)) | |
997 | except: |
|
997 | except: | |
998 | content = error.wrap_exception() |
|
998 | content = error.wrap_exception() | |
999 | # build a fake header: |
|
999 | # build a fake header: | |
1000 | header = {} |
|
1000 | header = {} | |
1001 | header['engine'] = uuid |
|
1001 | header['engine'] = uuid | |
1002 | header['date'] = datetime.now() |
|
1002 | header['date'] = datetime.now() | |
1003 | rec = dict(result_content=content, result_header=header, result_buffers=[]) |
|
1003 | rec = dict(result_content=content, result_header=header, result_buffers=[]) | |
1004 | rec['completed'] = header['date'] |
|
1004 | rec['completed'] = header['date'] | |
1005 | rec['engine_uuid'] = uuid |
|
1005 | rec['engine_uuid'] = uuid | |
1006 | try: |
|
1006 | try: | |
1007 | self.db.update_record(msg_id, rec) |
|
1007 | self.db.update_record(msg_id, rec) | |
1008 | except Exception: |
|
1008 | except Exception: | |
1009 | self.log.error("DB Error handling stranded msg %r", msg_id, exc_info=True) |
|
1009 | self.log.error("DB Error handling stranded msg %r", msg_id, exc_info=True) | |
1010 |
|
1010 | |||
1011 |
|
1011 | |||
1012 | def finish_registration(self, heart): |
|
1012 | def finish_registration(self, heart): | |
1013 | """Second half of engine registration, called after our HeartMonitor |
|
1013 | """Second half of engine registration, called after our HeartMonitor | |
1014 | has received a beat from the Engine's Heart.""" |
|
1014 | has received a beat from the Engine's Heart.""" | |
1015 | try: |
|
1015 | try: | |
1016 | ec = self.incoming_registrations.pop(heart) |
|
1016 | ec = self.incoming_registrations.pop(heart) | |
1017 | except KeyError: |
|
1017 | except KeyError: | |
1018 | self.log.error("registration::tried to finish nonexistant registration", exc_info=True) |
|
1018 | self.log.error("registration::tried to finish nonexistant registration", exc_info=True) | |
1019 | return |
|
1019 | return | |
1020 | self.log.info("registration::finished registering engine %i:%s", ec.id, ec.uuid) |
|
1020 | self.log.info("registration::finished registering engine %i:%s", ec.id, ec.uuid) | |
1021 | if ec.stallback is not None: |
|
1021 | if ec.stallback is not None: | |
1022 | ec.stallback.stop() |
|
1022 | ec.stallback.stop() | |
1023 | eid = ec.id |
|
1023 | eid = ec.id | |
1024 | self.ids.add(eid) |
|
1024 | self.ids.add(eid) | |
1025 | self.keytable[eid] = ec.uuid |
|
1025 | self.keytable[eid] = ec.uuid | |
1026 | self.engines[eid] = ec |
|
1026 | self.engines[eid] = ec | |
1027 | self.by_ident[cast_bytes(ec.uuid)] = ec.id |
|
1027 | self.by_ident[cast_bytes(ec.uuid)] = ec.id | |
1028 | self.queues[eid] = list() |
|
1028 | self.queues[eid] = list() | |
1029 | self.tasks[eid] = list() |
|
1029 | self.tasks[eid] = list() | |
1030 | self.completed[eid] = list() |
|
1030 | self.completed[eid] = list() | |
1031 | self.hearts[heart] = eid |
|
1031 | self.hearts[heart] = eid | |
1032 | content = dict(id=eid, uuid=self.engines[eid].uuid) |
|
1032 | content = dict(id=eid, uuid=self.engines[eid].uuid) | |
1033 | if self.notifier: |
|
1033 | if self.notifier: | |
1034 | self.session.send(self.notifier, "registration_notification", content=content) |
|
1034 | self.session.send(self.notifier, "registration_notification", content=content) | |
1035 | self.log.info("engine::Engine Connected: %i", eid) |
|
1035 | self.log.info("engine::Engine Connected: %i", eid) | |
1036 |
|
1036 | |||
1037 | self._save_engine_state() |
|
1037 | self._save_engine_state() | |
1038 |
|
1038 | |||
1039 | def _purge_stalled_registration(self, heart): |
|
1039 | def _purge_stalled_registration(self, heart): | |
1040 | if heart in self.incoming_registrations: |
|
1040 | if heart in self.incoming_registrations: | |
1041 | ec = self.incoming_registrations.pop(heart) |
|
1041 | ec = self.incoming_registrations.pop(heart) | |
1042 | self.log.info("registration::purging stalled registration: %i", ec.id) |
|
1042 | self.log.info("registration::purging stalled registration: %i", ec.id) | |
1043 | else: |
|
1043 | else: | |
1044 | pass |
|
1044 | pass | |
1045 |
|
1045 | |||
1046 | #------------------------------------------------------------------------- |
|
1046 | #------------------------------------------------------------------------- | |
1047 | # Engine State |
|
1047 | # Engine State | |
1048 | #------------------------------------------------------------------------- |
|
1048 | #------------------------------------------------------------------------- | |
1049 |
|
1049 | |||
1050 |
|
1050 | |||
1051 | def _cleanup_engine_state_file(self): |
|
1051 | def _cleanup_engine_state_file(self): | |
1052 | """cleanup engine state mapping""" |
|
1052 | """cleanup engine state mapping""" | |
1053 |
|
1053 | |||
1054 | if os.path.exists(self.engine_state_file): |
|
1054 | if os.path.exists(self.engine_state_file): | |
1055 | self.log.debug("cleaning up engine state: %s", self.engine_state_file) |
|
1055 | self.log.debug("cleaning up engine state: %s", self.engine_state_file) | |
1056 | try: |
|
1056 | try: | |
1057 | os.remove(self.engine_state_file) |
|
1057 | os.remove(self.engine_state_file) | |
1058 | except IOError: |
|
1058 | except IOError: | |
1059 | self.log.error("Couldn't cleanup file: %s", self.engine_state_file, exc_info=True) |
|
1059 | self.log.error("Couldn't cleanup file: %s", self.engine_state_file, exc_info=True) | |
1060 |
|
1060 | |||
1061 |
|
1061 | |||
1062 | def _save_engine_state(self): |
|
1062 | def _save_engine_state(self): | |
1063 | """save engine mapping to JSON file""" |
|
1063 | """save engine mapping to JSON file""" | |
1064 | if not self.engine_state_file: |
|
1064 | if not self.engine_state_file: | |
1065 | return |
|
1065 | return | |
1066 | self.log.debug("save engine state to %s" % self.engine_state_file) |
|
1066 | self.log.debug("save engine state to %s" % self.engine_state_file) | |
1067 | state = {} |
|
1067 | state = {} | |
1068 | engines = {} |
|
1068 | engines = {} | |
1069 | for eid, ec in self.engines.iteritems(): |
|
1069 | for eid, ec in self.engines.iteritems(): | |
1070 | if ec.uuid not in self.dead_engines: |
|
1070 | if ec.uuid not in self.dead_engines: | |
1071 | engines[eid] = ec.uuid |
|
1071 | engines[eid] = ec.uuid | |
1072 |
|
1072 | |||
1073 | state['engines'] = engines |
|
1073 | state['engines'] = engines | |
1074 |
|
1074 | |||
1075 | state['next_id'] = self._idcounter |
|
1075 | state['next_id'] = self._idcounter | |
1076 |
|
1076 | |||
1077 | with open(self.engine_state_file, 'w') as f: |
|
1077 | with open(self.engine_state_file, 'w') as f: | |
1078 | json.dump(state, f) |
|
1078 | json.dump(state, f) | |
1079 |
|
1079 | |||
1080 |
|
1080 | |||
1081 | def _load_engine_state(self): |
|
1081 | def _load_engine_state(self): | |
1082 | """load engine mapping from JSON file""" |
|
1082 | """load engine mapping from JSON file""" | |
1083 | if not os.path.exists(self.engine_state_file): |
|
1083 | if not os.path.exists(self.engine_state_file): | |
1084 | return |
|
1084 | return | |
1085 |
|
1085 | |||
1086 | self.log.info("loading engine state from %s" % self.engine_state_file) |
|
1086 | self.log.info("loading engine state from %s" % self.engine_state_file) | |
1087 |
|
1087 | |||
1088 | with open(self.engine_state_file) as f: |
|
1088 | with open(self.engine_state_file) as f: | |
1089 | state = json.load(f) |
|
1089 | state = json.load(f) | |
1090 |
|
1090 | |||
1091 | save_notifier = self.notifier |
|
1091 | save_notifier = self.notifier | |
1092 | self.notifier = None |
|
1092 | self.notifier = None | |
1093 | for eid, uuid in state['engines'].iteritems(): |
|
1093 | for eid, uuid in state['engines'].iteritems(): | |
1094 | heart = uuid.encode('ascii') |
|
1094 | heart = uuid.encode('ascii') | |
1095 | # start with this heart as current and beating: |
|
1095 | # start with this heart as current and beating: | |
1096 | self.heartmonitor.responses.add(heart) |
|
1096 | self.heartmonitor.responses.add(heart) | |
1097 | self.heartmonitor.hearts.add(heart) |
|
1097 | self.heartmonitor.hearts.add(heart) | |
1098 |
|
1098 | |||
1099 | self.incoming_registrations[heart] = EngineConnector(id=int(eid), uuid=uuid) |
|
1099 | self.incoming_registrations[heart] = EngineConnector(id=int(eid), uuid=uuid) | |
1100 | self.finish_registration(heart) |
|
1100 | self.finish_registration(heart) | |
1101 |
|
1101 | |||
1102 | self.notifier = save_notifier |
|
1102 | self.notifier = save_notifier | |
1103 |
|
1103 | |||
1104 | self._idcounter = state['next_id'] |
|
1104 | self._idcounter = state['next_id'] | |
1105 |
|
1105 | |||
1106 | #------------------------------------------------------------------------- |
|
1106 | #------------------------------------------------------------------------- | |
1107 | # Client Requests |
|
1107 | # Client Requests | |
1108 | #------------------------------------------------------------------------- |
|
1108 | #------------------------------------------------------------------------- | |
1109 |
|
1109 | |||
1110 | def shutdown_request(self, client_id, msg): |
|
1110 | def shutdown_request(self, client_id, msg): | |
1111 | """handle shutdown request.""" |
|
1111 | """handle shutdown request.""" | |
1112 | self.session.send(self.query, 'shutdown_reply', content={'status': 'ok'}, ident=client_id) |
|
1112 | self.session.send(self.query, 'shutdown_reply', content={'status': 'ok'}, ident=client_id) | |
1113 | # also notify other clients of shutdown |
|
1113 | # also notify other clients of shutdown | |
1114 | self.session.send(self.notifier, 'shutdown_notice', content={'status': 'ok'}) |
|
1114 | self.session.send(self.notifier, 'shutdown_notice', content={'status': 'ok'}) | |
1115 | dc = ioloop.DelayedCallback(lambda : self._shutdown(), 1000, self.loop) |
|
1115 | dc = ioloop.DelayedCallback(lambda : self._shutdown(), 1000, self.loop) | |
1116 | dc.start() |
|
1116 | dc.start() | |
1117 |
|
1117 | |||
1118 | def _shutdown(self): |
|
1118 | def _shutdown(self): | |
1119 | self.log.info("hub::hub shutting down.") |
|
1119 | self.log.info("hub::hub shutting down.") | |
1120 | time.sleep(0.1) |
|
1120 | time.sleep(0.1) | |
1121 | sys.exit(0) |
|
1121 | sys.exit(0) | |
1122 |
|
1122 | |||
1123 |
|
1123 | |||
1124 | def check_load(self, client_id, msg): |
|
1124 | def check_load(self, client_id, msg): | |
1125 | content = msg['content'] |
|
1125 | content = msg['content'] | |
1126 | try: |
|
1126 | try: | |
1127 | targets = content['targets'] |
|
1127 | targets = content['targets'] | |
1128 | targets = self._validate_targets(targets) |
|
1128 | targets = self._validate_targets(targets) | |
1129 | except: |
|
1129 | except: | |
1130 | content = error.wrap_exception() |
|
1130 | content = error.wrap_exception() | |
1131 | self.session.send(self.query, "hub_error", |
|
1131 | self.session.send(self.query, "hub_error", | |
1132 | content=content, ident=client_id) |
|
1132 | content=content, ident=client_id) | |
1133 | return |
|
1133 | return | |
1134 |
|
1134 | |||
1135 | content = dict(status='ok') |
|
1135 | content = dict(status='ok') | |
1136 | # loads = {} |
|
1136 | # loads = {} | |
1137 | for t in targets: |
|
1137 | for t in targets: | |
1138 | content[bytes(t)] = len(self.queues[t])+len(self.tasks[t]) |
|
1138 | content[bytes(t)] = len(self.queues[t])+len(self.tasks[t]) | |
1139 | self.session.send(self.query, "load_reply", content=content, ident=client_id) |
|
1139 | self.session.send(self.query, "load_reply", content=content, ident=client_id) | |
1140 |
|
1140 | |||
1141 |
|
1141 | |||
1142 | def queue_status(self, client_id, msg): |
|
1142 | def queue_status(self, client_id, msg): | |
1143 | """Return the Queue status of one or more targets. |
|
1143 | """Return the Queue status of one or more targets. | |
1144 | if verbose: return the msg_ids |
|
1144 | if verbose: return the msg_ids | |
1145 | else: return len of each type. |
|
1145 | else: return len of each type. | |
1146 | keys: queue (pending MUX jobs) |
|
1146 | keys: queue (pending MUX jobs) | |
1147 | tasks (pending Task jobs) |
|
1147 | tasks (pending Task jobs) | |
1148 | completed (finished jobs from both queues)""" |
|
1148 | completed (finished jobs from both queues)""" | |
1149 | content = msg['content'] |
|
1149 | content = msg['content'] | |
1150 | targets = content['targets'] |
|
1150 | targets = content['targets'] | |
1151 | try: |
|
1151 | try: | |
1152 | targets = self._validate_targets(targets) |
|
1152 | targets = self._validate_targets(targets) | |
1153 | except: |
|
1153 | except: | |
1154 | content = error.wrap_exception() |
|
1154 | content = error.wrap_exception() | |
1155 | self.session.send(self.query, "hub_error", |
|
1155 | self.session.send(self.query, "hub_error", | |
1156 | content=content, ident=client_id) |
|
1156 | content=content, ident=client_id) | |
1157 | return |
|
1157 | return | |
1158 | verbose = content.get('verbose', False) |
|
1158 | verbose = content.get('verbose', False) | |
1159 | content = dict(status='ok') |
|
1159 | content = dict(status='ok') | |
1160 | for t in targets: |
|
1160 | for t in targets: | |
1161 | queue = self.queues[t] |
|
1161 | queue = self.queues[t] | |
1162 | completed = self.completed[t] |
|
1162 | completed = self.completed[t] | |
1163 | tasks = self.tasks[t] |
|
1163 | tasks = self.tasks[t] | |
1164 | if not verbose: |
|
1164 | if not verbose: | |
1165 | queue = len(queue) |
|
1165 | queue = len(queue) | |
1166 | completed = len(completed) |
|
1166 | completed = len(completed) | |
1167 | tasks = len(tasks) |
|
1167 | tasks = len(tasks) | |
1168 | content[str(t)] = {'queue': queue, 'completed': completed , 'tasks': tasks} |
|
1168 | content[str(t)] = {'queue': queue, 'completed': completed , 'tasks': tasks} | |
1169 | content['unassigned'] = list(self.unassigned) if verbose else len(self.unassigned) |
|
1169 | content['unassigned'] = list(self.unassigned) if verbose else len(self.unassigned) | |
1170 | # print (content) |
|
1170 | # print (content) | |
1171 | self.session.send(self.query, "queue_reply", content=content, ident=client_id) |
|
1171 | self.session.send(self.query, "queue_reply", content=content, ident=client_id) | |
1172 |
|
1172 | |||
1173 | def purge_results(self, client_id, msg): |
|
1173 | def purge_results(self, client_id, msg): | |
1174 | """Purge results from memory. This method is more valuable before we move |
|
1174 | """Purge results from memory. This method is more valuable before we move | |
1175 | to a DB based message storage mechanism.""" |
|
1175 | to a DB based message storage mechanism.""" | |
1176 | content = msg['content'] |
|
1176 | content = msg['content'] | |
1177 | self.log.info("Dropping records with %s", content) |
|
1177 | self.log.info("Dropping records with %s", content) | |
1178 | msg_ids = content.get('msg_ids', []) |
|
1178 | msg_ids = content.get('msg_ids', []) | |
1179 | reply = dict(status='ok') |
|
1179 | reply = dict(status='ok') | |
1180 | if msg_ids == 'all': |
|
1180 | if msg_ids == 'all': | |
1181 | try: |
|
1181 | try: | |
1182 | self.db.drop_matching_records(dict(completed={'$ne':None})) |
|
1182 | self.db.drop_matching_records(dict(completed={'$ne':None})) | |
1183 | except Exception: |
|
1183 | except Exception: | |
1184 | reply = error.wrap_exception() |
|
1184 | reply = error.wrap_exception() | |
1185 | else: |
|
1185 | else: | |
1186 | pending = filter(lambda m: m in self.pending, msg_ids) |
|
1186 | pending = filter(lambda m: m in self.pending, msg_ids) | |
1187 | if pending: |
|
1187 | if pending: | |
1188 | try: |
|
1188 | try: | |
1189 | raise IndexError("msg pending: %r" % pending[0]) |
|
1189 | raise IndexError("msg pending: %r" % pending[0]) | |
1190 | except: |
|
1190 | except: | |
1191 | reply = error.wrap_exception() |
|
1191 | reply = error.wrap_exception() | |
1192 | else: |
|
1192 | else: | |
1193 | try: |
|
1193 | try: | |
1194 | self.db.drop_matching_records(dict(msg_id={'$in':msg_ids})) |
|
1194 | self.db.drop_matching_records(dict(msg_id={'$in':msg_ids})) | |
1195 | except Exception: |
|
1195 | except Exception: | |
1196 | reply = error.wrap_exception() |
|
1196 | reply = error.wrap_exception() | |
1197 |
|
1197 | |||
1198 | if reply['status'] == 'ok': |
|
1198 | if reply['status'] == 'ok': | |
1199 | eids = content.get('engine_ids', []) |
|
1199 | eids = content.get('engine_ids', []) | |
1200 | for eid in eids: |
|
1200 | for eid in eids: | |
1201 | if eid not in self.engines: |
|
1201 | if eid not in self.engines: | |
1202 | try: |
|
1202 | try: | |
1203 | raise IndexError("No such engine: %i" % eid) |
|
1203 | raise IndexError("No such engine: %i" % eid) | |
1204 | except: |
|
1204 | except: | |
1205 | reply = error.wrap_exception() |
|
1205 | reply = error.wrap_exception() | |
1206 | break |
|
1206 | break | |
1207 | uid = self.engines[eid].uuid |
|
1207 | uid = self.engines[eid].uuid | |
1208 | try: |
|
1208 | try: | |
1209 | self.db.drop_matching_records(dict(engine_uuid=uid, completed={'$ne':None})) |
|
1209 | self.db.drop_matching_records(dict(engine_uuid=uid, completed={'$ne':None})) | |
1210 | except Exception: |
|
1210 | except Exception: | |
1211 | reply = error.wrap_exception() |
|
1211 | reply = error.wrap_exception() | |
1212 | break |
|
1212 | break | |
1213 |
|
1213 | |||
1214 | self.session.send(self.query, 'purge_reply', content=reply, ident=client_id) |
|
1214 | self.session.send(self.query, 'purge_reply', content=reply, ident=client_id) | |
1215 |
|
1215 | |||
1216 | def resubmit_task(self, client_id, msg): |
|
1216 | def resubmit_task(self, client_id, msg): | |
1217 | """Resubmit one or more tasks.""" |
|
1217 | """Resubmit one or more tasks.""" | |
1218 | def finish(reply): |
|
1218 | def finish(reply): | |
1219 | self.session.send(self.query, 'resubmit_reply', content=reply, ident=client_id) |
|
1219 | self.session.send(self.query, 'resubmit_reply', content=reply, ident=client_id) | |
1220 |
|
1220 | |||
1221 | content = msg['content'] |
|
1221 | content = msg['content'] | |
1222 | msg_ids = content['msg_ids'] |
|
1222 | msg_ids = content['msg_ids'] | |
1223 | reply = dict(status='ok') |
|
1223 | reply = dict(status='ok') | |
1224 | try: |
|
1224 | try: | |
1225 | records = self.db.find_records({'msg_id' : {'$in' : msg_ids}}, keys=[ |
|
1225 | records = self.db.find_records({'msg_id' : {'$in' : msg_ids}}, keys=[ | |
1226 | 'header', 'content', 'buffers']) |
|
1226 | 'header', 'content', 'buffers']) | |
1227 | except Exception: |
|
1227 | except Exception: | |
1228 | self.log.error('db::db error finding tasks to resubmit', exc_info=True) |
|
1228 | self.log.error('db::db error finding tasks to resubmit', exc_info=True) | |
1229 | return finish(error.wrap_exception()) |
|
1229 | return finish(error.wrap_exception()) | |
1230 |
|
1230 | |||
1231 | # validate msg_ids |
|
1231 | # validate msg_ids | |
1232 | found_ids = [ rec['msg_id'] for rec in records ] |
|
1232 | found_ids = [ rec['msg_id'] for rec in records ] | |
1233 | pending_ids = [ msg_id for msg_id in found_ids if msg_id in self.pending ] |
|
1233 | pending_ids = [ msg_id for msg_id in found_ids if msg_id in self.pending ] | |
1234 | if len(records) > len(msg_ids): |
|
1234 | if len(records) > len(msg_ids): | |
1235 | try: |
|
1235 | try: | |
1236 | raise RuntimeError("DB appears to be in an inconsistent state." |
|
1236 | raise RuntimeError("DB appears to be in an inconsistent state." | |
1237 | "More matching records were found than should exist") |
|
1237 | "More matching records were found than should exist") | |
1238 | except Exception: |
|
1238 | except Exception: | |
1239 | return finish(error.wrap_exception()) |
|
1239 | return finish(error.wrap_exception()) | |
1240 | elif len(records) < len(msg_ids): |
|
1240 | elif len(records) < len(msg_ids): | |
1241 | missing = [ m for m in msg_ids if m not in found_ids ] |
|
1241 | missing = [ m for m in msg_ids if m not in found_ids ] | |
1242 | try: |
|
1242 | try: | |
1243 | raise KeyError("No such msg(s): %r" % missing) |
|
1243 | raise KeyError("No such msg(s): %r" % missing) | |
1244 | except KeyError: |
|
1244 | except KeyError: | |
1245 | return finish(error.wrap_exception()) |
|
1245 | return finish(error.wrap_exception()) | |
1246 | elif pending_ids: |
|
1246 | elif pending_ids: | |
1247 | pass |
|
1247 | pass | |
1248 | # no need to raise on resubmit of pending task, now that we |
|
1248 | # no need to raise on resubmit of pending task, now that we | |
1249 | # resubmit under new ID, but do we want to raise anyway? |
|
1249 | # resubmit under new ID, but do we want to raise anyway? | |
1250 | # msg_id = invalid_ids[0] |
|
1250 | # msg_id = invalid_ids[0] | |
1251 | # try: |
|
1251 | # try: | |
1252 | # raise ValueError("Task(s) %r appears to be inflight" % ) |
|
1252 | # raise ValueError("Task(s) %r appears to be inflight" % ) | |
1253 | # except Exception: |
|
1253 | # except Exception: | |
1254 | # return finish(error.wrap_exception()) |
|
1254 | # return finish(error.wrap_exception()) | |
1255 |
|
1255 | |||
1256 | # mapping of original IDs to resubmitted IDs |
|
1256 | # mapping of original IDs to resubmitted IDs | |
1257 | resubmitted = {} |
|
1257 | resubmitted = {} | |
1258 |
|
1258 | |||
1259 | # send the messages |
|
1259 | # send the messages | |
1260 | for rec in records: |
|
1260 | for rec in records: | |
1261 | header = rec['header'] |
|
1261 | header = rec['header'] | |
1262 | msg = self.session.msg(header['msg_type'], parent=header) |
|
1262 | msg = self.session.msg(header['msg_type'], parent=header) | |
1263 | msg_id = msg['msg_id'] |
|
1263 | msg_id = msg['msg_id'] | |
1264 | msg['content'] = rec['content'] |
|
1264 | msg['content'] = rec['content'] | |
1265 |
|
1265 | |||
1266 | # use the old header, but update msg_id and timestamp |
|
1266 | # use the old header, but update msg_id and timestamp | |
1267 | fresh = msg['header'] |
|
1267 | fresh = msg['header'] | |
1268 | header['msg_id'] = fresh['msg_id'] |
|
1268 | header['msg_id'] = fresh['msg_id'] | |
1269 | header['date'] = fresh['date'] |
|
1269 | header['date'] = fresh['date'] | |
1270 | msg['header'] = header |
|
1270 | msg['header'] = header | |
1271 |
|
1271 | |||
1272 | self.session.send(self.resubmit, msg, buffers=rec['buffers']) |
|
1272 | self.session.send(self.resubmit, msg, buffers=rec['buffers']) | |
1273 |
|
1273 | |||
1274 | resubmitted[rec['msg_id']] = msg_id |
|
1274 | resubmitted[rec['msg_id']] = msg_id | |
1275 | self.pending.add(msg_id) |
|
1275 | self.pending.add(msg_id) | |
1276 | msg['buffers'] = rec['buffers'] |
|
1276 | msg['buffers'] = rec['buffers'] | |
1277 | try: |
|
1277 | try: | |
1278 | self.db.add_record(msg_id, init_record(msg)) |
|
1278 | self.db.add_record(msg_id, init_record(msg)) | |
1279 | except Exception: |
|
1279 | except Exception: | |
1280 | self.log.error("db::DB Error updating record: %s", msg_id, exc_info=True) |
|
1280 | self.log.error("db::DB Error updating record: %s", msg_id, exc_info=True) | |
1281 | return finish(error.wrap_exception()) |
|
1281 | return finish(error.wrap_exception()) | |
1282 |
|
1282 | |||
1283 | finish(dict(status='ok', resubmitted=resubmitted)) |
|
1283 | finish(dict(status='ok', resubmitted=resubmitted)) | |
1284 |
|
1284 | |||
1285 | # store the new IDs in the Task DB |
|
1285 | # store the new IDs in the Task DB | |
1286 | for msg_id, resubmit_id in resubmitted.iteritems(): |
|
1286 | for msg_id, resubmit_id in resubmitted.iteritems(): | |
1287 | try: |
|
1287 | try: | |
1288 | self.db.update_record(msg_id, {'resubmitted' : resubmit_id}) |
|
1288 | self.db.update_record(msg_id, {'resubmitted' : resubmit_id}) | |
1289 | except Exception: |
|
1289 | except Exception: | |
1290 | self.log.error("db::DB Error updating record: %s", msg_id, exc_info=True) |
|
1290 | self.log.error("db::DB Error updating record: %s", msg_id, exc_info=True) | |
1291 |
|
1291 | |||
1292 |
|
1292 | |||
1293 | def _extract_record(self, rec): |
|
1293 | def _extract_record(self, rec): | |
1294 | """decompose a TaskRecord dict into subsection of reply for get_result""" |
|
1294 | """decompose a TaskRecord dict into subsection of reply for get_result""" | |
1295 | io_dict = {} |
|
1295 | io_dict = {} | |
1296 | for key in ('pyin', 'pyout', 'pyerr', 'stdout', 'stderr'): |
|
1296 | for key in ('pyin', 'pyout', 'pyerr', 'stdout', 'stderr'): | |
1297 | io_dict[key] = rec[key] |
|
1297 | io_dict[key] = rec[key] | |
1298 | content = { |
|
1298 | content = { | |
1299 | 'header': rec['header'], |
|
1299 | 'header': rec['header'], | |
1300 | 'metadata': rec['metadata'], |
|
1300 | 'metadata': rec['metadata'], | |
1301 | 'result_metadata': rec['result_metadata'], |
|
1301 | 'result_metadata': rec['result_metadata'], | |
1302 | 'result_header' : rec['result_header'], |
|
1302 | 'result_header' : rec['result_header'], | |
1303 | 'result_content': rec['result_content'], |
|
1303 | 'result_content': rec['result_content'], | |
1304 | 'received' : rec['received'], |
|
1304 | 'received' : rec['received'], | |
1305 | 'io' : io_dict, |
|
1305 | 'io' : io_dict, | |
1306 | } |
|
1306 | } | |
1307 | if rec['result_buffers']: |
|
1307 | if rec['result_buffers']: | |
1308 | buffers = map(bytes, rec['result_buffers']) |
|
1308 | buffers = map(bytes, rec['result_buffers']) | |
1309 | else: |
|
1309 | else: | |
1310 | buffers = [] |
|
1310 | buffers = [] | |
1311 |
|
1311 | |||
1312 | return content, buffers |
|
1312 | return content, buffers | |
1313 |
|
1313 | |||
1314 | def get_results(self, client_id, msg): |
|
1314 | def get_results(self, client_id, msg): | |
1315 | """Get the result of 1 or more messages.""" |
|
1315 | """Get the result of 1 or more messages.""" | |
1316 | content = msg['content'] |
|
1316 | content = msg['content'] | |
1317 | msg_ids = sorted(set(content['msg_ids'])) |
|
1317 | msg_ids = sorted(set(content['msg_ids'])) | |
1318 | statusonly = content.get('status_only', False) |
|
1318 | statusonly = content.get('status_only', False) | |
1319 | pending = [] |
|
1319 | pending = [] | |
1320 | completed = [] |
|
1320 | completed = [] | |
1321 | content = dict(status='ok') |
|
1321 | content = dict(status='ok') | |
1322 | content['pending'] = pending |
|
1322 | content['pending'] = pending | |
1323 | content['completed'] = completed |
|
1323 | content['completed'] = completed | |
1324 | buffers = [] |
|
1324 | buffers = [] | |
1325 | if not statusonly: |
|
1325 | if not statusonly: | |
1326 | try: |
|
1326 | try: | |
1327 | matches = self.db.find_records(dict(msg_id={'$in':msg_ids})) |
|
1327 | matches = self.db.find_records(dict(msg_id={'$in':msg_ids})) | |
1328 | # turn match list into dict, for faster lookup |
|
1328 | # turn match list into dict, for faster lookup | |
1329 | records = {} |
|
1329 | records = {} | |
1330 | for rec in matches: |
|
1330 | for rec in matches: | |
1331 | records[rec['msg_id']] = rec |
|
1331 | records[rec['msg_id']] = rec | |
1332 | except Exception: |
|
1332 | except Exception: | |
1333 | content = error.wrap_exception() |
|
1333 | content = error.wrap_exception() | |
1334 | self.session.send(self.query, "result_reply", content=content, |
|
1334 | self.session.send(self.query, "result_reply", content=content, | |
1335 | parent=msg, ident=client_id) |
|
1335 | parent=msg, ident=client_id) | |
1336 | return |
|
1336 | return | |
1337 | else: |
|
1337 | else: | |
1338 | records = {} |
|
1338 | records = {} | |
1339 | for msg_id in msg_ids: |
|
1339 | for msg_id in msg_ids: | |
1340 | if msg_id in self.pending: |
|
1340 | if msg_id in self.pending: | |
1341 | pending.append(msg_id) |
|
1341 | pending.append(msg_id) | |
1342 | elif msg_id in self.all_completed: |
|
1342 | elif msg_id in self.all_completed: | |
1343 | completed.append(msg_id) |
|
1343 | completed.append(msg_id) | |
1344 | if not statusonly: |
|
1344 | if not statusonly: | |
1345 | c,bufs = self._extract_record(records[msg_id]) |
|
1345 | c,bufs = self._extract_record(records[msg_id]) | |
1346 | content[msg_id] = c |
|
1346 | content[msg_id] = c | |
1347 | buffers.extend(bufs) |
|
1347 | buffers.extend(bufs) | |
1348 | elif msg_id in records: |
|
1348 | elif msg_id in records: | |
1349 | if rec['completed']: |
|
1349 | if rec['completed']: | |
1350 | completed.append(msg_id) |
|
1350 | completed.append(msg_id) | |
1351 | c,bufs = self._extract_record(records[msg_id]) |
|
1351 | c,bufs = self._extract_record(records[msg_id]) | |
1352 | content[msg_id] = c |
|
1352 | content[msg_id] = c | |
1353 | buffers.extend(bufs) |
|
1353 | buffers.extend(bufs) | |
1354 | else: |
|
1354 | else: | |
1355 | pending.append(msg_id) |
|
1355 | pending.append(msg_id) | |
1356 | else: |
|
1356 | else: | |
1357 | try: |
|
1357 | try: | |
1358 | raise KeyError('No such message: '+msg_id) |
|
1358 | raise KeyError('No such message: '+msg_id) | |
1359 | except: |
|
1359 | except: | |
1360 | content = error.wrap_exception() |
|
1360 | content = error.wrap_exception() | |
1361 | break |
|
1361 | break | |
1362 | self.session.send(self.query, "result_reply", content=content, |
|
1362 | self.session.send(self.query, "result_reply", content=content, | |
1363 | parent=msg, ident=client_id, |
|
1363 | parent=msg, ident=client_id, | |
1364 | buffers=buffers) |
|
1364 | buffers=buffers) | |
1365 |
|
1365 | |||
1366 | def get_history(self, client_id, msg): |
|
1366 | def get_history(self, client_id, msg): | |
1367 | """Get a list of all msg_ids in our DB records""" |
|
1367 | """Get a list of all msg_ids in our DB records""" | |
1368 | try: |
|
1368 | try: | |
1369 | msg_ids = self.db.get_history() |
|
1369 | msg_ids = self.db.get_history() | |
1370 | except Exception as e: |
|
1370 | except Exception as e: | |
1371 | content = error.wrap_exception() |
|
1371 | content = error.wrap_exception() | |
1372 | else: |
|
1372 | else: | |
1373 | content = dict(status='ok', history=msg_ids) |
|
1373 | content = dict(status='ok', history=msg_ids) | |
1374 |
|
1374 | |||
1375 | self.session.send(self.query, "history_reply", content=content, |
|
1375 | self.session.send(self.query, "history_reply", content=content, | |
1376 | parent=msg, ident=client_id) |
|
1376 | parent=msg, ident=client_id) | |
1377 |
|
1377 | |||
1378 | def db_query(self, client_id, msg): |
|
1378 | def db_query(self, client_id, msg): | |
1379 | """Perform a raw query on the task record database.""" |
|
1379 | """Perform a raw query on the task record database.""" | |
1380 | content = msg['content'] |
|
1380 | content = msg['content'] | |
1381 | query = content.get('query', {}) |
|
1381 | query = content.get('query', {}) | |
1382 | keys = content.get('keys', None) |
|
1382 | keys = content.get('keys', None) | |
1383 | buffers = [] |
|
1383 | buffers = [] | |
1384 | empty = list() |
|
1384 | empty = list() | |
1385 | try: |
|
1385 | try: | |
1386 | records = self.db.find_records(query, keys) |
|
1386 | records = self.db.find_records(query, keys) | |
1387 | except Exception as e: |
|
1387 | except Exception as e: | |
1388 | content = error.wrap_exception() |
|
1388 | content = error.wrap_exception() | |
1389 | else: |
|
1389 | else: | |
1390 | # extract buffers from reply content: |
|
1390 | # extract buffers from reply content: | |
1391 | if keys is not None: |
|
1391 | if keys is not None: | |
1392 | buffer_lens = [] if 'buffers' in keys else None |
|
1392 | buffer_lens = [] if 'buffers' in keys else None | |
1393 | result_buffer_lens = [] if 'result_buffers' in keys else None |
|
1393 | result_buffer_lens = [] if 'result_buffers' in keys else None | |
1394 | else: |
|
1394 | else: | |
1395 | buffer_lens = None |
|
1395 | buffer_lens = None | |
1396 | result_buffer_lens = None |
|
1396 | result_buffer_lens = None | |
1397 |
|
1397 | |||
1398 | for rec in records: |
|
1398 | for rec in records: | |
1399 | # buffers may be None, so double check |
|
1399 | # buffers may be None, so double check | |
1400 | b = rec.pop('buffers', empty) or empty |
|
1400 | b = rec.pop('buffers', empty) or empty | |
1401 | if buffer_lens is not None: |
|
1401 | if buffer_lens is not None: | |
1402 | buffer_lens.append(len(b)) |
|
1402 | buffer_lens.append(len(b)) | |
1403 | buffers.extend(b) |
|
1403 | buffers.extend(b) | |
1404 | rb = rec.pop('result_buffers', empty) or empty |
|
1404 | rb = rec.pop('result_buffers', empty) or empty | |
1405 | if result_buffer_lens is not None: |
|
1405 | if result_buffer_lens is not None: | |
1406 | result_buffer_lens.append(len(rb)) |
|
1406 | result_buffer_lens.append(len(rb)) | |
1407 | buffers.extend(rb) |
|
1407 | buffers.extend(rb) | |
1408 | content = dict(status='ok', records=records, buffer_lens=buffer_lens, |
|
1408 | content = dict(status='ok', records=records, buffer_lens=buffer_lens, | |
1409 | result_buffer_lens=result_buffer_lens) |
|
1409 | result_buffer_lens=result_buffer_lens) | |
1410 | # self.log.debug (content) |
|
1410 | # self.log.debug (content) | |
1411 | self.session.send(self.query, "db_reply", content=content, |
|
1411 | self.session.send(self.query, "db_reply", content=content, | |
1412 | parent=msg, ident=client_id, |
|
1412 | parent=msg, ident=client_id, | |
1413 | buffers=buffers) |
|
1413 | buffers=buffers) | |
1414 |
|
1414 |
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