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https://issues.apache.org/jira/browse/HADOOP-5530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12689235#action_12689235
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dhruba borthakur commented on HADOOP-5530:
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I have a machine on which the namenodeis running with an -Xmx20480m but the
nameode ui shows:
xxx files and directories, yyy blocks = zzz total. Heap Size is 15.27 GB /
17.78 GB (85%)
I wonder why it shows a total of 17.78GB instead of 20GB
> The "Heap Size" in HDFS web ui may not be accurate
> --------------------------------------------------
>
> Key: HADOOP-5530
> URL: https://issues.apache.org/jira/browse/HADOOP-5530
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Reporter: Tsz Wo (Nicholas), SZE
>
> It seems that the Heap Size shown in HDFS web UI is not accurate. It keeps
> showing 100% of usage. e.g.
> {noformat}
> Heap Size is 10.01 GB / 10.01 GB (100%)
> {noformat}
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