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From "Xi Wang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-3152) When NameNode HA is enabled and one NameNode is down, a subset of HDFS metrics do not appear
Date Tue, 10 Sep 2013 03:17:52 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-3152?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xi Wang updated AMBARI-3152:
----------------------------

    Description: 
HDFS metrics always got from host_components[0] because before HA enabled, there is only one
NameNode.
After HA enabled, host_components will be an array of two objects(two NNs).
So, We should always get metrics from the active NameNode.


  was:
HDFS metrics always got from host_components[0] because before HA enabled, there is only one
NameNode.
But, We should always get metrics from the active NameNode.


    
> When NameNode HA is enabled and one NameNode is down, a subset of HDFS metrics do not
appear
> --------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-3152
>                 URL: https://issues.apache.org/jira/browse/AMBARI-3152
>             Project: Ambari
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 1.4.1
>            Reporter: Xi Wang
>            Assignee: Xi Wang
>             Fix For: 1.4.1
>
>
> HDFS metrics always got from host_components[0] because before HA enabled, there is only
one NameNode.
> After HA enabled, host_components will be an array of two objects(two NNs).
> So, We should always get metrics from the active NameNode.

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