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(In reply to Steeve Goveas from comment #0)
Additional info:
purging the cache resolves the issue, a sssd restart without purging does not resolve the issue
> [root@vm-idm-007 ~]# date
> Tue Mar 22 17:15:05 IST 2016
> [root@vm-idm-007 ~]# id bis_broken_user2
> uid=50002(bis_broken_user2) gid=60002(bis_broken_group_user2)
> groups=60002(bis_broken_group_user2)
> [root@vm-idm-007 ~]# service sssd restart
> Stopping sssd: [ OK ]
> Starting sssd: [ OK ]
> [root@vm-idm-007 ~]# id bis_broken_user2
> uid=50002(bis_broken_user2) gid=60002(bis_broken_group_user2)
> groups=60002(bis_broken_group_user2)
> [root@vm-idm-007 ~]# date
> Tue Mar 22 17:15:32 IST 2016
The most suspicious thing is that invalidation of sssd cache does not help.
There are more more domains defined: rfc2307, rfc2307bis, rfc2307bis_broken, proxy, LOCAL
and only problematic is "rfc2307bis_broken". I do not know how it is broken.
But I can see the same bug in following upgrades
rhel6.7 -> rhel6.8
rhel6.6 -> rhel6.8
rhel6.5 -> rhel6.8
rhel6.6 -> rhel6.7
rhel6.8 -> sssd upstrem master.
Please try to collect the sssd_nss logs as well. It looks like after the upgrade the fc2307bis_broken backend does not receive any requests for object from its domain. Maybe there is a collision with one of the other backends?
Petr did some work in this area and fixed a number of bugs. Petr, I wonder if you have time to re-test this bug? (Not totally urgent, but please add this to your todo list..)