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Posted to hdfs-dev@hadoop.apache.org by "Bharat Viswanadham (JIRA)" <ji...@apache.org> on 2019/05/07 21:10:00 UTC

[jira] [Resolved] (HDDS-1475) Fix OzoneContainer start method

     [ https://issues.apache.org/jira/browse/HDDS-1475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bharat Viswanadham resolved HDDS-1475.
--------------------------------------
       Resolution: Fixed
    Fix Version/s: 0.5.0

> Fix OzoneContainer start method
> -------------------------------
>
>                 Key: HDDS-1475
>                 URL: https://issues.apache.org/jira/browse/HDDS-1475
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>          Components: Ozone Datanode
>            Reporter: Bharat Viswanadham
>            Assignee: Aravindan Vijayan
>            Priority: Major
>              Labels: newbie, pull-request-available
>             Fix For: 0.5.0
>
>          Time Spent: 3h 10m
>  Remaining Estimate: 0h
>
> In OzoneContainer start() we have 
> {code:java}
> startContainerScrub();
> writeChannel.start();
> readChannel.start();
> hddsDispatcher.init();
> hddsDispatcher.setScmId(scmId);{code}
>  
> Suppose here if readChannel.start() failed due to some reason, from VersionEndPointTask, we try to start OzoneContainer again. This can cause an issue for writeChannel.start() if it is already started. 
>  
> Fix the logic such a way that if service is started, don't attempt to start the service again. Similar changes needed to be done for stop().



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