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This RFE came up during a discussion between Chris Hudson, Simo and me. Some deployments suffer from latency when refreshing a big number of expired entries, for instance during logins that involve refreshing netgroups.
The latency might be mitigated by introducing a new background task that would walk the database periodically and fire a refresh in the background for any entry that is past a threshold
What is the criteria regarding which entries to update? Is it any entry that is old enough or there is also a filter, i.e refresh only: users, groups, services, netgroups, sudo rules, automount maps, SSH data, HBAC, or SELinux mappings?
summary: RFE: Add a task to the SSSD to periodically refresh cached entries => [RFE] Add a task to the SSSD to periodically refresh cached entries type: defect => enhancement
Fields changed
milestone: NEEDS_TRIAGE => SSSD 1.11 beta rhbz: => todo
milestone: SSSD 1.11 beta => SSSD 1.12 beta
There is a customer issue bound to it.
milestone: SSSD 1.12 beta => NEEDS_TRIAGE selected: => _comment0: Analog Devices is the customer. sssd creates a lag in their lookups. comes up in weekly call with Analog. workarounds are difficult to use. => 1360102095601244
Moving to 1.10 and marking as critical as there is a customer demand to see this functionality implemented sooner rather than later.
milestone: NEEDS_TRIAGE => SSSD 1.10 beta
owner: somebody => jhrozek
Linked to Bugzilla bug: https://bugzilla.redhat.com/show_bug.cgi?id=948830 (Red Hat Enterprise Linux 6)
rhbz: todo => [https://bugzilla.redhat.com/show_bug.cgi?id=948830 948830]
owner: jhrozek => pbrezina review: => 0 status: new => assigned
design: => https://fedorahosted.org/sssd/wiki/DesignDocs/PeriodicalRefreshOfExpiredEntries
patch: 0 => 1
changelog: => Large deployments may suffer from latency when refreshing a big number of expired entries, for instance during logins that involve refreshing netgroups. SSSD 1.10 contains a new background task that will periodically search and update all expired cached entries.
resolution: => fixed status: assigned => closed
Metadata Update from @jhrozek: - Issue assigned to pbrezina - Issue set to the milestone: SSSD 1.10 beta
SSSD is moving from Pagure to Github. This means that new issues and pull requests will be accepted only in SSSD's github repository.
This issue has been cloned to Github and is available here: - https://github.com/SSSD/sssd/issues/2755
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