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Lukas found that depending on the order we save groups to cache, we might fail to save cyclic group memberships correctly. With a setup like this:
________ | CG1 |------------>sssduser1 |______|<---+ | | | | | ________ +---->| CG2 |--->sssduser2 |______|
Then depending on whether CG1 or CG2 is requested first, then only sssduser1 or only sssduser2 may be returned.
The logs would show an EEXIST situation from memberof plugin.
Ticket has been cloned to Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=928797
rhbz: => [https://bugzilla.redhat.com/show_bug.cgi?id=928797 928797]
Fields changed
milestone: NEEDS_TRIAGE => SSSD 1.10.0
milestone: SSSD 1.10.0 => SSSD 1.10.1
changelog: => owner: somebody => okos status: new => assigned
Ondra, this is a bug in the memberof plugin. I don't think it's trivial (the memberof plugin is quite complex and delicate code base) so feel free to pick another ticket instead if you feel that this would be too much for start.
I was going to close this issue as notabug. I tried to reproduce this yesterday with IPA and LDAP id providers, but everytime the groups were returned correctly. I asked Lukas to give me precise steps, since he found this issue, but now he couldn't reproduce this as well. We'll try to find when and where this could've been fixed, but there were no modifications in memberof plugin since the bug was reported.
Aaah, I confused this ticket with #1654, sorry. Carry on :)
owner: okos => lslebodn status: assigned => new
patch: 0 => 1 status: new => assigned
owner: lslebodn => jhrozek status: assigned => new
owner: jhrozek => lslebodn
resolution: => fixed status: new => closed
changelog: => N/A, just a bugfix
Metadata Update from @jhrozek: - Issue assigned to lslebodn - Issue set to the milestone: SSSD 1.10.1
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This issue has been cloned to Github and is available here: - https://github.com/SSSD/sssd/issues/2888
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