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Posted to commits@samza.apache.org by "Prateek Maheshwari (JIRA)" <ji...@apache.org> on 2017/04/17 03:05:41 UTC

[jira] [Updated] (SAMZA-1166) Leader should hold a lock to avoid failures on long GC pause/timeouts

     [ https://issues.apache.org/jira/browse/SAMZA-1166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Prateek Maheshwari updated SAMZA-1166:
--------------------------------------
    Fix Version/s: 0.13.0

> Leader should hold a lock to avoid failures on long GC pause/timeouts
> ---------------------------------------------------------------------
>
>                 Key: SAMZA-1166
>                 URL: https://issues.apache.org/jira/browse/SAMZA-1166
>             Project: Samza
>          Issue Type: Sub-task
>            Reporter: Navina Ramesh
>            Assignee: Navina Ramesh
>             Fix For: 0.13.0
>
>
> The standard leader election algorithm works well for the leader election. However, for the leader to maintain its leadership, it needs a way to identify that it is still the leader. This check should happen before each "leader" like operation. A simple way to do this is to treat leadership as a resource and use a lock. Only operate as leader when lock is held by self. 



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