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Posted to dev@aurora.apache.org by "Kevin Sweeney (JIRA)" <ji...@apache.org> on 2014/01/24 20:38:37 UTC

[jira] [Created] (AURORA-111) Support warm failover in schedulers

Kevin Sweeney created AURORA-111:
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             Summary: Support warm failover in schedulers
                 Key: AURORA-111
                 URL: https://issues.apache.org/jira/browse/AURORA-111
             Project: Aurora
          Issue Type: Story
          Components: Scheduler
            Reporter: Kevin Sweeney
            Priority: Minor


Right now, whenever a leader election is triggered all followers dump their state and restart, then the newly-elected leader has to play back the log and rebuild its state, all the while being offline (the more task state transitions it has to play back, the longer this takes). Consider keeping this state available on the followers (consistent, but arbitrarily far behind) and then catching up after a successful leader election.



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