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https://issues.apache.org/jira/browse/FLINK-31510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17702568#comment-17702568
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Ran Tao commented on FLINK-31510:
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[~slfan1989] thanks for explantations. got it.
> Use getMemorySize instead of getMemory
> --------------------------------------
>
> Key: FLINK-31510
> URL: https://issues.apache.org/jira/browse/FLINK-31510
> Project: Flink
> Issue Type: Improvement
> Components: Deployment / YARN
> Affects Versions: 1.18.0
> Reporter: Shilun Fan
> Priority: Major
> Labels: pull-request-available
>
> In YARN-4844, use getMemorySize instead of getMemory, because using int to
> represent memory may exceed the bounds in some cases and produce negative
> numbers.
> This change was merged in HADOOP-2.8.0, we should use getMemorySize instead
> of getMemory.
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