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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
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
_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
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