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https://issues.apache.org/jira/browse/STORM-1676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15251133#comment-15251133
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ASF GitHub Bot commented on STORM-1676:
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Github user unsleepy22 commented on the pull request:
https://github.com/apache/storm/pull/1298#issuecomment-212697111
+1， thx
> NullPointerException while serializing ClusterWorkerHearbeat
> ------------------------------------------------------------
>
> Key: STORM-1676
> URL: https://issues.apache.org/jira/browse/STORM-1676
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-core
> Affects Versions: 2.0.0
> Reporter: Abhishek Agarwal
> Assignee: Abhishek Agarwal
> Fix For: 2.0.0
>
>
> `Map<ExecutorInfo,ExecutorStats> executor_stats` had null value in the key
> which was causing NPE during serialization.
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