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https://issues.apache.org/jira/browse/SAMZA-2444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Zhang resolved SAMZA-2444.
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Resolution: Fixed
> 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
> 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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