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1b1ed1a
(Get the code!)
We were finally able to take a closer look into this issue, and we found a bug in the install guide for openSUSE/SLES [1]. But it's not only a missing memcached configuration (if you change the CACHE LOCATION in the dashboard section of the install guide).
In our Liberty/Mitaka keystone.conf we used these memcache settings:
---cut here---
[memcache]
# Memcache servers in the format of "host:port". (list value)
servers = localhost:11211
---cut here---
and the default memcached settings:
---cut here---
control1:~ # cat /etc/sysconfig/
## Path: Network/
## Description: start parameters for memcached.
## Type: string
## Default: "-l 127.0.0.1"
## Config: memcached
#
# start parameters for memcached.
#
# see man 1 memcached for more
#
MEMCACHED_
---cut here---
So it was not wrong as it's not deprecated yet:
---cut here---
# This option is deprecated for removal since O.
# Its value may be silently ignored in the future.
# Reason: This option has been deprecated in the O release and will be removed
# in the P release. Use oslo.cache instead.
---cut here---
But as soon as we switched to oslo.cache and used
memcache_servers = localhost:11211 (or 127.0.0.1:11211)
the performance increased significantly! Instead of loading times of 30 seconds and more (or worse, gateway timeouts for /admin/instances) the pages load within a few seconds now, 8 to 10 seconds for /admin/instances. I still think this is a bug... Anyway, now you know.
[1] https:/