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https://issues.apache.org/jira/browse/AURORA-197?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Lambert resolved AURORA-197.
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Resolution: Won't Fix
See AURORA-610.
> aurora client fails in rollback if rolled-back instances already dead
> ---------------------------------------------------------------------
>
> Key: AURORA-197
> URL: https://issues.apache.org/jira/browse/AURORA-197
> Project: Aurora
> Issue Type: Bug
> Components: Client
> Reporter: brian wickman
>
> User reported:
> {noformat}
> I was trying to test our deployment failure and rollback today, and this
> happened:
> INFO] Detected RUNNING instance 0
> INFO] Instance 0 is unhealthy
> ERROR] Failed instances: set([0])
> WARN] Not restarting failed instances [0], which exceeded maximum allowed
> instance failure limit of 0
> ERROR] 1 failed instances observed, maximum allowed is 0
> ERROR] 1 instance failures for instance 0, maximum allowed is 0
> ERROR] 1 failed instances observed, maximum allowed is 0
> ERROR] 1 instance failures for instance 0, maximum allowed is 0
> INFO] Reverting update for [0]
> INFO] Examining instances: [0]
> INFO] Killing instances: [0]
> INFO] Response from scheduler: ERROR (message: Aborting update without
> rollback! Fatal error: No jobs to kill)
> $
> So instance 0 failed (as expected; I was testing this), then the aurora
> client tries to kill the failed instance. That fails because the failed
> instance is already dead (maybe a race condition?), so it gives up on rolling
> back.
> Did I interpret that correctly? If so, is that expected? If so, is there a
> way to get it to gracefully roll back in this case (maybe via update
> configuration)? I can paste more details if it's helpful, but here's my
> update config:
> UpdateConfig(restart_threshold = 120, watch_secs = 60, batch_size = 1)
> The failure also left a lock on the deployment, which is a bit of a pain.
> Thanks for the help,
> {noformat}
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