[jira] [Commented] (AMBARI-3238) 1st host on a 2-node cluster goes to heartbeat lost state in UI after decommissioning datanode on 2ond host

["Sumit Mohanty (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-3238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13767380#comment-13767380 ] 

Sumit Mohanty commented on AMBARI-3238:
---------------------------------------

This is because, the decommission task is not processed properly resulting in agent sending back a heartbeat response that is not parsable by the server. Thus the server does not receive heartbeat.
                
> 1st host on a 2-node cluster goes to heartbeat lost state in UI after decommissioning datanode on 2ond host
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-3238
>                 URL: https://issues.apache.org/jira/browse/AMBARI-3238
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: 1.4.1
>            Reporter: Sumit Mohanty
>            Assignee: Sumit Mohanty
>             Fix For: 1.4.1
>
>
> On a 2node cluster (second host was Added via Add Hosts wizard, but the same was reproduced on a 3-node cluster with regular nodes' deployment)
> 1. On second host perform Decommission of DataNode. 
> 2. The first host goes to state *Heartbeat lost* in UI (*host1-state.png*), doesn't seem to recover from it. 

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