[jira] [Created] (APEXMALHAR-2321) Improve Buckets memory management

["bright chen (JIRA)" <ji...@apache.org>]

bright chen created APEXMALHAR-2321:
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             Summary: 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


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.

- AbstractManagedStateImpl.maxMemorySize probably will be misunderstand as the max memory size of total managed state, but in fact it was used as memory size of each bucket. Better to rename it.

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




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