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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APEXMALHAR-2321) Improve Buckets memory management
Date Wed, 02 Nov 2016 21:30:58 GMT

    [ https://issues.apache.org/jira/browse/APEXMALHAR-2321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15630594#comment-15630594

ASF GitHub Bot commented on APEXMALHAR-2321:

GitHub user brightchen opened a pull request:


    APEXMALHAR-2321 #resolve #comment Improve Buckets memory management


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/brightchen/apex-malhar APEXMALHAR-2321

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #481
commit d16ce8b5f6364a3562a9e5c94dfb7763597ca8a0
Author: brightchen <bright@datatorrent.com>
Date:   2016-11-01T21:30:55Z

    APEXMALHAR-2321 #resolve #comment Improve Buckets memory management


> 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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