[Wikidata-bugs] [Maniphest] [Created] T151993: Implement ChangeDispatchCoordinator based on RedisLockManager

[daniel]

daniel created this task. daniel added projects: Wikidata, DBA, Performance, Wikidata-Sprint-2016-11-15. Herald added a project: User-Ladsgroup.

TASK DESCRIPTION

Our current implementation of ChangeDispatchCoordinator relies on global MySQL locks, which hogs connections to the master DB, and may lose locks when these connections are reset by a watchdog.

@aaron suggested to use Redis based locks instead.

When implementing ChangeDispatchCoordinator based on RedisLockManager, please take care to closely replicate the semantics of the existing SqlChangeDispatchCoordinator.

TASK DETAIL

https://phabricator.wikimedia.org/T151993

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To: Ladsgroup, daniel
Cc: Ladsgroup, hoo, Lydia_Pintscher, Jonas, Aklapper, jcrespo, Marostegui, daniel, aaron, Vali.matei, Minhnv-2809, D3r1ck01, Izno, Luke081515, Wikidata-bugs, aude, GWicke, Mbch331, Jay8g, Krenair

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