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From "Andrii Tkach (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-8106) Ambari not showing HDFS Block status metrics of active namenode after a failover
Date Sun, 02 Nov 2014 13:51:33 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-8106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14193835#comment-14193835
] 

Andrii Tkach commented on AMBARI-8106:
--------------------------------------

https://reviews.apache.org/r/27487/

> Ambari not showing HDFS Block status metrics of active namenode after a failover
> --------------------------------------------------------------------------------
>
>                 Key: AMBARI-8106
>                 URL: https://issues.apache.org/jira/browse/AMBARI-8106
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-web
>    Affects Versions: 1.7.0
>            Reporter: Andrii Tkach
>            Assignee: Andrii Tkach
>            Priority: Critical
>             Fix For: 1.7.0
>
>         Attachments: AMBARI-8106.patch, AMBARI-8106_branch-1.7.0.patch
>
>
> PROBLEM:
> Ambari shows HDFS Block status metrics for NN1(active namenode). But when a failover
happens to NN2, Ambari doesn't show the Block status metrics for NN2(current active namenode).

> BUSINESS IMPACT:
> Users not able to see the metrics via Ambari. They need to go to the Ganglia Web UI to
monitor the metrics.
> STEPS TO REPRODUCE:
> 1. Currently NN1 is active. We are able to see the HDFS Block status metrics in Ambari
> 2. Failover to NN2.
> 3. We will not be able to see the Block status metrics for NN2.
> SUPPORT ANALYSIS:
> Support reproduced this issue in house.



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