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From "Elek, Marton (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDFS-12812) Ozone: dozone: initialize scm directory on cluster startup
Date Tue, 14 Nov 2017 17:10:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Elek, Marton reassigned HDFS-12812:
-----------------------------------

    Assignee: Elek, Marton

> Ozone: dozone: initialize scm directory on cluster startup
> ----------------------------------------------------------
>
>                 Key: HDFS-12812
>                 URL: https://issues.apache.org/jira/browse/HDFS-12812
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>    Affects Versions: HDFS-7240
>            Reporter: Elek, Marton
>            Assignee: Elek, Marton
>         Attachments: HADOOP-12812-HDFS-7240.001.patch
>
>
> HDFS-12739 fixed the scm, but after the patch it couldn't be started without a separated
`hdfs scm -init` any more. Unfortunatelly it breaks the docker-compose functionality.
> This is handled int the starter script of the base runner docker image for namenode.
I also fixed this in the runner docker image (https://github.com/elek/hadoop/commit/b347eb4bfca37d84dbcdd8c4bf353219d876a9b7)
will upload the improved patch to the HADOOP-14898.
> In this patch I just add a new environment variable to init the scm if the version file
doesn't exist.
> To test:
> Do a full build and go to the dev-support/compose/ozone:
> ```
> docker-compose pull
> docker-compose up -d
> ```
> Note: the pull is important as the new docker image -- which could handle the new environment
variable -- should be used



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