exc_tracker: allow setting custom store via .ini file

- use safer exc read when listing exceptions.

configs/development.ini

@@ -292,6 +292,10 b' supervisor.group_id = dev'
 ## Display extended labs settings
 labs_settings_active = true
 
+## custom exception store path, defaults to TMPDIR
+exception_store_path =
+
+
 ####################################
 ###        CELERY CONFIG        ####
 ####################################

configs/production.ini

@@ -267,6 +267,10 b' supervisor.group_id = prod'
 ## Display extended labs settings
 labs_settings_active = true
 
+## custom exception store path, defaults to TMPDIR
+exception_store_path =
+
+
 ####################################
 ###        CELERY CONFIG        ####
 ####################################

rhodecode/apps/admin/views/exception_tracker.py

@@ -73,10 +73,16 b' class ExceptionsTrackerView(BaseAppView)'
 
             if read_metadata:
                 full_path = os.path.join(exc_store_path, fname)
-                # we can read our metadata
-                with open(full_path, 'rb') as f:
-                    exc_metadata = exc_tracking.exc_unserialize(f.read())
-                    exc.update(exc_metadata)
+                if not os.path.isfile(full_path):
+                    continue
+                try:
+                    # we can read our metadata
+                    with open(full_path, 'rb') as f:
+                        exc_metadata = exc_tracking.exc_unserialize(f.read())
+                        exc.update(exc_metadata)
+                except Exception:
+                    log.exception('Failed to read exc data from:{}'.format(full_path))
+                    pass
 
             # convert our timestamp to a date obj, for nicer representation
             exc['exc_utc_date'] = time_to_utcdatetime(exc['exc_timestamp'])

rhodecode/config/middleware.py

@@ -436,6 +436,7 b' def _sanitize_vcs_settings(settings):'
 
 
 def _sanitize_cache_settings(settings):
+
     default_cache_dir = os.path.join(tempfile.gettempdir(), 'rc_cache')
 
     # save default, cache dir, and use it for all backends later.
@@ -448,6 +449,12 b' def _sanitize_cache_settings(settings):'
     if not os.path.isdir(default_cache_dir):
         os.makedirs(default_cache_dir, mode=0755)
 
+    # exception store cache
+    _string_setting(
+        settings,
+        'exception_store_path',
+        default_cache_dir, lower=False)
+
     # cache_perms
     _string_setting(
         settings,

rhodecode/lib/exc_tracking.py

@@ -31,6 +31,7 b' log = logging.getLogger(__name__)'
 
 # NOTE: Any changes should be synced with exc_tracking at vcsserver.lib.exc_tracking
 global_prefix = 'rhodecode'
+exc_store_dir_name = 'rc_exception_store_v1'
 
 
 def exc_serialize(exc_id, tb, exc_type):
@@ -54,13 +55,10 b' def get_exc_store():'
     """
     Get and create exception store if it's not existing
     """
-    exc_store_dir = 'rc_exception_store_v1'
-    # fallback
-    _exc_store_path = os.path.join(tempfile.gettempdir(), exc_store_dir)
+    import rhodecode as app
 
-    exc_store_dir = ''  # TODO: need a persistent cross instance store here
-    if exc_store_dir:
-        _exc_store_path = os.path.join(exc_store_dir, exc_store_dir)
+    exc_store_dir = app.CONFIG.get('exception_store_path', '') or tempfile.gettempdir()
+    _exc_store_path = os.path.join(exc_store_dir, exc_store_dir_name)
 
     _exc_store_path = os.path.abspath(_exc_store_path)
     if not os.path.isdir(_exc_store_path):