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Posted to commits@samza.apache.org by "Cameron Lee (Jira)" <ji...@apache.org> on 2020/02/18 21:41:00 UTC

[jira] [Updated] (SAMZA-2444) JobModel save in CoordinatorStreamStore resulting flush for each message

     [ https://issues.apache.org/jira/browse/SAMZA-2444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cameron Lee updated SAMZA-2444:
-------------------------------
    Fix Version/s: 1.4

> JobModel save in CoordinatorStreamStore resulting flush for each message
> ------------------------------------------------------------------------
>
>                 Key: SAMZA-2444
>                 URL: https://issues.apache.org/jira/browse/SAMZA-2444
>             Project: Samza
>          Issue Type: Improvement
>            Reporter: Alan Zhang
>            Assignee: Alan Zhang
>            Priority: Major
>             Fix For: 1.4
>
>          Time Spent: 3h 20m
>  Remaining Estimate: 0h
>
> JobModelManager uses CoordinatorStreamStore.put() to save job model information which does flush for each message.
> The flush operation in CoordinatorStreamStore is very heavy, so it may take over a very long time for AM to save the information in a run.
> We should use CoordinatorStreamStore's batch put instead of single put.
>  



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