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