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Posted to common-issues@hadoop.apache.org by "ZanderXu (Jira)" <ji...@apache.org> on 2022/11/09 02:25:00 UTC

[jira] [Resolved] (HADOOP-18502) Hadoop metrics should return 0 when there is no change

     [ https://issues.apache.org/jira/browse/HADOOP-18502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ZanderXu resolved HADOOP-18502.
-------------------------------
    Fix Version/s: 3.4.0
     Hadoop Flags: Reviewed
       Resolution: Fixed

> Hadoop metrics should return 0 when there is no change
> ------------------------------------------------------
>
>                 Key: HADOOP-18502
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18502
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: leo sun
>            Assignee: leo sun
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>         Attachments: image-2022-10-21-14-41-43-105.png
>
>
> When we try to switch active NN to standby, we find that the getContentSummary average time is always a very high value even if there is no more query. For us, the metrics return 0 is more reasonable. The monitor is as below:
> !image-2022-10-21-14-41-43-105.png!
>  



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