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https://issues.apache.org/jira/browse/APEXMALHAR-2321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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bright chen updated APEXMALHAR-2321:
------------------------------------
    Description: 
Currently buckets were managed as an array. Each bucket have memory limitation, 
and free memory will be triggered if the bucket memory usage over the 
limitation.

- For ManagedTimeUnifiedStateImpl, the default bucket number is 345600, which 
probably too large. But it can be changed by set 
Context.OperatorContext.APPLICATION_WINDOW_COUNT

- The default maxMemorySize is zero. It's better to give a default reasonable 
value to avoid too much garbage collection 


  was:
Currently buckets were managed as an array. Each bucket have memory limitation, 
and free memory will be triggered if the bucket memory usage over the 
limitation.

- For ManagedTimeUnifiedStateImpl, the default bucket number is 345600, which 
probably too large.


- The default maxMemorySize is zero. It's better to give a default reasonable 
value to avoid too much garbage collection 



> Improve Buckets memory management
> ---------------------------------
>
>                 Key: APEXMALHAR-2321
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-2321
>             Project: Apache Apex Malhar
>          Issue Type: Improvement
>            Reporter: bright chen
>            Assignee: bright chen
>
> Currently buckets were managed as an array. Each bucket have memory 
> limitation, and free memory will be triggered if the bucket memory usage over 
> the limitation.
> - For ManagedTimeUnifiedStateImpl, the default bucket number is 345600, which 
> probably too large. But it can be changed by set 
> Context.OperatorContext.APPLICATION_WINDOW_COUNT
> - The default maxMemorySize is zero. It's better to give a default reasonable 
> value to avoid too much garbage collection 



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