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https://issues.apache.org/jira/browse/HADOOP-5530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12689232#action_12689232
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Tsz Wo (Nicholas), SZE commented on HADOOP-5530:
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I think this is a presentation problem. The text "10.01 GB / 10.01 GB (100%)"
seems saying that 100% of memory is being used but it may not be the case.
Unfortunately, there is no easy way to obtain accurate memory usage. How about
we change it to "maxMemory= 10.01 GB, totalMemory = 10.01 GB, freeMemory = xx".
Then it will be less confusing.
> 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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