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Message #49330
[Bug 1567413] Re: Keystone fetches data from Memcache even if caching is explicitly turned off
** Also affects: oslo.cache
Importance: Undecided
Status: New
** Changed in: keystone
Status: Triaged => Invalid
** Changed in: oslo.cache
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1567413
Title:
Keystone fetches data from Memcache even if caching is explicitly
turned off
Status in OpenStack Identity (keystone):
Invalid
Status in oslo.cache:
Confirmed
Bug description:
== Abstract ==
I'm profiling Keystone using OSprofiler tool and the appropriate
Keystone+OSprofiler integration changes -
https://review.openstack.org/#/q/status:open+project:openstack/keystone+branch:master+topic
:osprofiler-support-in-keystone - currently on review. The idea was to
analyse how does Keystone use DB/Cache layers.
== Expected vs Observed==
I'm turning off cache via setting
[cache]
enabled = False
I'm expecting all data to be fetched from DB in this case, but I still
see gets from Memcache. I mean, *real* gets, not just tries to grab
values, but real operations happening with values got from memcache
here
https://bitbucket.org/zzzeek/dogpile.cache/src/c6913eb143b24b4a886124ff0da5c935ea34e3ac/dogpile/cache/region.py?at=master&fileviewer
=file-view-default#region.py-617
Adding OSprofiler HTML report from token issue API call.
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References