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https://issues.apache.org/jira/browse/HADOOP-4411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12640210#action_12640210
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Suresh Srinivas commented on HADOOP-4411:
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The problem with Last Contact (and this can happen with other columns also) is
due to the time lag between sorting and printing sorted data. All the datanodes
are sorted based on the sort criteria. Then reference to datanode object is
used for fetching and printing the data. Printed data has discrepancies, if the
datanode data is changed by then.
> On Namenode WebUI, sorting of the Datanode info table is not working for some
> of the columns in the table.
> ----------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-4411
> URL: https://issues.apache.org/jira/browse/HADOOP-4411
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.19.0
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
>
> In WebUI on Namenode, the information related to the cluster is shown. The
> information related to the over all cluster and Datanodes is shown.
> Currently, the sorting of the table for Datanode information (done by
> clicking the column header) for Present Capacity, Blocks and Remaining
> columns is not working.
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