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Posted to commits@samza.apache.org by "Xinyu Liu (JIRA)" <ji...@apache.org> on 2018/01/04 20:27:00 UTC

[jira] [Updated] (SAMZA-1483) Restart or fail Samza jobs in Zk-based standalone processors when input topic partition changes

     [ https://issues.apache.org/jira/browse/SAMZA-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xinyu Liu updated SAMZA-1483:
-----------------------------
    Fix Version/s: 0.15.0

> Restart or fail Samza jobs in Zk-based standalone processors when input topic partition changes
> -----------------------------------------------------------------------------------------------
>
>                 Key: SAMZA-1483
>                 URL: https://issues.apache.org/jira/browse/SAMZA-1483
>             Project: Samza
>          Issue Type: Bug
>            Reporter: Yi Pan (Data Infrastructure)
>             Fix For: 0.15.0
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> This is related to SAMZA-1482. We need to handle input stream partition count change in embedded Samza processors as well. 
> In Zk-based embedded Samza processors, when a input stream partition count change is detected, we have the opportunity to trigger a JobModel update event, which would:
> # for stateless jobs, restart the embedded SamzaContainer w/ new input topic partitions and new JobModel
> # for stateful jobs, shutdown the embedded StreamProcessor by throwing exceptions when the input topic partitions are different



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