[jira] [Updated] (AMBARI-14382) ambari intermittently not able to detect the active NN

["Andrii Tkach (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-14382?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrii Tkach updated AMBARI-14382:
----------------------------------
    Attachment: hdfs-HA.jpg

> ambari intermittently not able to detect the active NN
> ------------------------------------------------------
>
>                 Key: AMBARI-14382
>                 URL: https://issues.apache.org/jira/browse/AMBARI-14382
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-web
>    Affects Versions: 2.2.0
>            Reporter: Andrii Tkach
>            Assignee: Andrii Tkach
>            Priority: Critical
>             Fix For: 2.2.1
>
>         Attachments: hdfs-HA.jpg
>
>
> /main/services/HDFS/summary shows neither of the NN as active. This causes the metrics to be wrong as they get data from the standby NN. This is an intermittent issue where some times it shows the correct node as active and some times it does not. However when it does show the correct node as active it does not seem to pick up the metrics from that node.
> {code}
> # ambari-server --hash
> 00134fe762906e804c68034f8bdcd9e522725892
> # rpm -qa | grep ambari
> ambari-server-2.2.0.0-1236.x86_64
> ambari-agent-2.2.0.0-1236.x86_64
> ambari-metrics-hadoop-sink-2.2.0.0-1236.x86_64
> ambari-metrics-monitor-2.2.0.0-1236.x86_64
> {code}



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