Public bug reported:
When enabled_emulation is enabled, the performance of Keystone suffers
greatly. I see a approx 4x slower result when it is enabled. I
discussed this some in my blog post
(http://www.mattfischer.com/blog/?p=561) and was asked to file a bug by
Yuriy. Here are some results. Each query had about 20 results, but I've
removed them since it has private emails and what not.
enabled_emulation off:
root@j1:~# time keystone user-list
+--------------+--------------+---------+---------------------------+
| id | name | enabled | email |
+--------------+--------------+---------+---------------------------+
| admin | admin | True | |
...
+--------------+--------------+---------+---------------------------+
real 0m2.767s
user 0m0.380s
sys 0m0.284s
enabled_emulation on:
root@j1:~# time keystone user-list
+--------------+--------------+---------+---------------------------+
| id | name | enabled | email |
+--------------+--------------+---------+---------------------------+
| admin | admin | True | |
...
+--------------+--------------+---------+---------------------------+
real 0m9.099s
user 0m0.508s
sys 0m0.084s
Similar results happen for tenant enabled emulation.
My LDAP box is a Free IPA server running on CentOS if that matters.
I'm running Keystone 2013.2.2-0ubuntu1~cloud0
** Affects: keystone
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1299033
Title:
enabled_emulation greatly reduces keystone performance
Status in OpenStack Identity (Keystone):
New
Bug description:
When enabled_emulation is enabled, the performance of Keystone suffers
greatly. I see a approx 4x slower result when it is enabled. I
discussed this some in my blog post
(http://www.mattfischer.com/blog/?p=561) and was asked to file a bug
by Yuriy. Here are some results. Each query had about 20 results, but
I've removed them since it has private emails and what not.
enabled_emulation off:
root@j1:~# time keystone user-list
+--------------+--------------+---------+---------------------------+
| id | name | enabled | email |
+--------------+--------------+---------+---------------------------+
| admin | admin | True | |
...
+--------------+--------------+---------+---------------------------+
real 0m2.767s
user 0m0.380s
sys 0m0.284s
enabled_emulation on:
root@j1:~# time keystone user-list
+--------------+--------------+---------+---------------------------+
| id | name | enabled | email |
+--------------+--------------+---------+---------------------------+
| admin | admin | True | |
...
+--------------+--------------+---------+---------------------------+
real 0m9.099s
user 0m0.508s
sys 0m0.084s
Similar results happen for tenant enabled emulation.
My LDAP box is a Free IPA server running on CentOS if that matters.
I'm running Keystone 2013.2.2-0ubuntu1~cloud0
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