openstack/devstack
Code Issues Proposed changes

Switch keystone to dogpile.cache.memcached backend

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memcache_pool is there to keep a limited number of thread-associated
connections open rather than a connection for every thread. If you
don't have a huge number of threads it doesn't offer anything.
Keystone is an example of a service where memcache_pool doesn't
improve things -- eventlet isn't supported anymore and more threads
is not useful due to GIL.

As such, keystone cache backend is changed to dogpile.cache.memcached.

See https://review.openstack.org/357407 for the oslo.cache help text
change.

Change-Id: I4452a8c4968073cdea4c0f384453a5a28519fa08
This commit is contained in:
Brant Knudson
2016-08-18 13:50:18 -05:00
parent ecfc8a77c2
commit 0a318ab8a6
1 changed files with 1 additions and 1 deletions
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2
lib/keystone
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@@ -245,7 +245,7 @@ function configure_keystone {
# Enable caching
iniset $KEYSTONE_CONF cache enabled "True"
iniset $KEYSTONE_CONF cache backend "oslo_cache.memcache_pool"
iniset $KEYSTONE_CONF cache backend "dogpile.cache.memcached"
iniset $KEYSTONE_CONF cache memcache_servers localhost:11211
# Do not cache the catalog backend due to https://bugs.launchpad.net/keystone/+bug/1537617