[jira] [Resolved] (AMBARI-2928) Add a Nagios alert to check state of NN HA

["Oleksandr Diachenko (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-2928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Oleksandr Diachenko resolved AMBARI-2928.
-----------------------------------------

    Resolution: Fixed

Commited to trunk.
                
> Add a Nagios alert to check state of NN HA
> ------------------------------------------
>
>                 Key: AMBARI-2928
>                 URL: https://issues.apache.org/jira/browse/AMBARI-2928
>             Project: Ambari
>          Issue Type: Improvement
>          Components: agent
>    Affects Versions: 1.4.0
>            Reporter: Dmitry Sen
>            Assignee: Dmitry Sen
>             Fix For: 1.4.1
>
>         Attachments: AMBARI-2928.patch
>
>
> Add Nagios alert
> Title: "NameNode HA Healthy"
> Check if one NN has tag.HAState = active and second NN has tag.HAState = standby.
> Scenarios:
> 1.
> Active + Standby NN are up 
> OK: NameNode HA healthy true; Active<dev01.hortonworks.com>, Standby<dev02.hortonworks.com>, Unavailable<>
> 2.
> Two Standby NNs are up
> CRITICAL: No Active NN available; Active<>, Standby<dev01.hortonworks.com:dev02.hortonworks.com>, Unavailable<>
> 3.
> Two Active NN are up
> CRITICAL: No Active NN available; No failover NN available; Active<dev01.hortonworks.com:dev02.hortonworks.com>, Standby<>, Unavailable<>
> 4.
> Both NN unavailable
> CRITICAL: No Active NN available; No failover NN available: Active<>, Standby<>, Unavailable<dev01.hortonworks.com:dev02.hortonworks.com>
> 5.
> Only one NameNode in cluster (no additional/standby NameNode configured)
> CRITICAL: No failover NN available: Active<dev01.hortonworks.com>, Standby<>, Unavailable<>

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