keystone/etc
Yuriy Taraday 0010803288 Add a pool of memcached clients
This patchset adds a pool of memcache clients. This pool allows for reuse of
a client object, prevents too many client object from being instantiated, and
maintains proper tracking of dead servers so as to limit delays
when a server (or all servers) become unavailable.

The new memcache pool backend is available either by being set as the memcache
backend or by using keystone.token.persistence.backends.memcache_pool.Token for
the Token memcache persistence driver.

[memcache]
servers = 127.0.0.1:11211
dead_retry = 300
socket_timeout = 3
pool_maxsize = 10
pool_unused_timeout = 60

Where:
- servers - comma-separated list of host:port pairs (was already there);
- dead_retry - number of seconds memcached server is considered dead
  before it is tried again;
- socket_timeout - timeout in seconds for every call to a server;
- pool_maxsize - max total number of open connections in the pool;
- pool_unused_timeout - number of seconds a connection is held unused in
  the pool before it is closed;

The new memcache pool backend can be used as the driver for the Keystone
caching layer. To use it as caching driver, set
'keystone.cache.memcache_pool' as the value of the [cache]\backend option,
the other options are the same as above, but with 'memcache_' prefix:

[cache]
backend = keystone.cache.memcache_pool
memcache_servers = 127.0.0.1:11211
memcache_dead_retry = 300
memcache_socket_timeout = 3
memcache_pool_maxsize = 10
memcache_pool_unused_timeout = 60

Co-Authored-By: Morgan Fainberg <morgan.fainberg@gmail.com>
Closes-bug: #1332058
Closes-bug: #1360446
Change-Id: I3544894482b30a47fcd4fac8948d03136fd83f14
2014-09-22 20:59:25 +04:00
..
default_catalog.templates Do not use keystone's config for nova's port 2014-07-01 11:03:59 -07:00
keystone-paste.ini Adds pipeline hints to the example paste config 2014-09-10 13:30:32 -04:00
keystone.conf.sample Add a pool of memcached clients 2014-09-22 20:59:25 +04:00
logging.conf.sample Generate apache-style common access logs 2013-01-31 08:16:21 -06:00
policy.json Merge "Implementation of Endpoint Grouping" 2014-09-03 17:58:51 +00:00
policy.v3cloudsample.json Merge "Implementation of Endpoint Grouping" 2014-09-03 17:58:51 +00:00