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Posted to issues@ozone.apache.org by "Marton Elek (Jira)" <ji...@apache.org> on 2020/06/25 10:34:00 UTC

[jira] [Resolved] (HDDS-3858) Remove support to start Ozone and HDFS datanodes in the same JVM

     [ https://issues.apache.org/jira/browse/HDDS-3858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marton Elek resolved HDDS-3858.
-------------------------------
    Fix Version/s: 0.6.0
       Resolution: Fixed

> Remove support to start Ozone and HDFS datanodes in the same JVM
> ----------------------------------------------------------------
>
>                 Key: HDDS-3858
>                 URL: https://issues.apache.org/jira/browse/HDDS-3858
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>            Reporter: Marton Elek
>            Assignee: Marton Elek
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.6.0
>
>
> With a few thousands issues ago Ozone was integral part of Hadoop/HDFS project. At that time there were two options to start datanode:
>  1. Start in a separated JVM
>  2. Start in the same JVM with the HDFS
> Today only 1 is the standard way, this is tested and working. 2nd is not working any more but still documented.
> I propose to drop the support of this use case as I can't see any benefit to support it anymore:
>  1. I think 100% of the users will use Ozone as a separated process not as a HDFS Datanode plugin
>  2. Fixing the classpath issues is significant effort as the classpath of HDFS and Ozone are diverged.



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