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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17065) Perform more effective sorting for RPC Handler Tasks
Date Wed, 01 Nov 2017 12:36:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16234017#comment-16234017
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Ted Yu commented on HBASE-17065:
--------------------------------

lgtm


> Perform more effective sorting for RPC Handler Tasks
> ----------------------------------------------------
>
>                 Key: HBASE-17065
>                 URL: https://issues.apache.org/jira/browse/HBASE-17065
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Reid Chan
>            Priority: Minor
>              Labels: rpc, ui
>         Attachments: HBASE-17065.master.001.patch, Screen Shot 2017-11-01 at 5.38.53
PM.png, rpc-hdlr-tasks.png
>
>
> Under the 'Show All RPC Handler Tasks' tab, the tasks are not sorted according to the
duration they have been in the current state (see picture).
> In TaskMonitorTmpl.jamon :
> {code}
> long now = System.currentTimeMillis();
> Collections.reverse(tasks);
> {code}
> The underlying tasks are backed by CircularFifoBuffer, leading to ineffective sorting.
> We should display tasks with the longest duration (in current state) first.



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