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https://issues.apache.org/jira/browse/HDFS-8464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14585187#comment-14585187
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surendra singh lilhore commented on HDFS-8464:
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I think this is not a problem...
Memory usage will come -1 when it is undefined
Please check {{getMax()}}
http://docs.oracle.com/javase/7/docs/api/java/lang/management/MemoryUsage.html
> hdfs namenode UI shows "Max Non Heap Memory" is -1 B
> ----------------------------------------------------
>
> Key: HDFS-8464
> URL: https://issues.apache.org/jira/browse/HDFS-8464
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: HDFS
> Affects Versions: 2.7.0
> Environment: suse11.3
> Reporter: tongshiquan
> Priority: Minor
> Attachments: screenshot-1.png
>
>
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