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https://issues.apache.org/jira/browse/AMBARI-14382?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrii Tkach updated AMBARI-14382:
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Attachment: (was: AMBARI-14382.patch)
> 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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