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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APEXCORE-296) App Master Dies With 1 gb of memory
Date Fri, 15 Jan 2016 17:07:40 GMT

    [ https://issues.apache.org/jira/browse/APEXCORE-296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15102083#comment-15102083
] 

ASF GitHub Bot commented on APEXCORE-296:
-----------------------------------------

Github user gauravgopi123 commented on a diff in the pull request:

    https://github.com/apache/incubator-apex-core/pull/203#discussion_r49877877
  
    --- Diff: engine/src/main/java/com/datatorrent/stram/StreamingContainerManager.java ---
    @@ -1027,6 +1027,19 @@ public int processEvents()
             }
           }
           o.stats.lastWindowedStats = stats;
    +      if (!o.stats.responses.isEmpty()) {
    +        if (o.stats.operatorResponses == null) {
    +          o.stats.operatorResponses = new ArrayList<>();
    +        } else {
    +          o.stats.operatorResponses.clear();
    +        }
    +        StatsListener.OperatorResponse operatorResponse;
    +        while ((operatorResponse = o.stats.responses.poll()) != null) {
    +          o.stats.operatorResponses.add(operatorResponse);
    +        }
    +      } else {
    +        o.stats.operatorResponses = null;
    --- End diff --
    
    @tweise : Initially it was done that way but @amberarrow suggested that we reuse the same
list if possible, so made this change. I am fine with either way...


> App Master Dies With 1 gb of memory
> -----------------------------------
>
>                 Key: APEXCORE-296
>                 URL: https://issues.apache.org/jira/browse/APEXCORE-296
>             Project: Apache Apex Core
>          Issue Type: Bug
>    Affects Versions: 3.0.0, 3.1.0, 3.2.0, 3.1.1, 3.3.0, 3.2.1
>            Reporter: Timothy Farkas
>            Assignee: gaurav gupta
>
> When the App Master only has 1gb of memory it dies. When the memory is increased to 2gb
it runs fine. Often times the App Master dies abruptly without any log messages, occasionally
there is an OutOfMemoryException. 



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