caches: added logging for dogpile configuration.

rhodecode/lib/rc_cache/__init__.py

@@ -1,68 +1,75 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2015-2018 RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
+import logging
 from dogpile.cache import register_backend
 from dogpile.cache import make_region
 
 register_backend(
     "dogpile.cache.rc.memory_lru", "rhodecode.lib.rc_cache.backends",
     "LRUMemoryBackend")
 
 register_backend(
     "dogpile.cache.rc.file_namespace", "rhodecode.lib.rc_cache.backends",
     "FileNamespaceBackend")
 
 register_backend(
     "dogpile.cache.rc.redis", "rhodecode.lib.rc_cache.backends",
     "RedisPickleBackend")
 
 
+log = logging.getLogger(__name__)
+
 from . import region_meta
 from .utils import (
     get_default_cache_settings, key_generator, get_or_create_region,
     clear_cache_namespace)
 
 
 def configure_dogpile_cache(settings):
     cache_dir = settings.get('cache_dir')
     if cache_dir:
         region_meta.dogpile_config_defaults['cache_dir'] = cache_dir
 
     rc_cache_data = get_default_cache_settings(settings, prefixes=['rc_cache.'])
 
     # inspect available namespaces
     avail_regions = set()
     for key in rc_cache_data.keys():
         namespace_name = key.split('.', 1)[0]
         avail_regions.add(namespace_name)
+    log.debug('dogpile: found following cache regions: %s', avail_regions)
 
     # register them into namespace
     for region_name in avail_regions:
         new_region = make_region(
             name=region_name,
             function_key_generator=key_generator
         )
 
         new_region.configure_from_config(settings, 'rc_cache.{}.'.format(region_name))
+
+        log.debug('dogpile: registering a new region %s[%s]',
+                  region_name, new_region.__dict__)
         region_meta.dogpile_cache_regions[region_name] = new_region
 
 
 def includeme(config):
     configure_dogpile_cache(config.registry.settings)