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https://issues.apache.org/jira/browse/HDFS-12053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16067597#comment-16067597
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Weiwei Yang commented on HDFS-12053:
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Thanks [~msingh] for your comments, I've updated the patch to address #1. Not
sure if #2 would buy us any good, in v2 patch I still use that to check if the
dir is a directory. But let me know if you still want me to change this. Thank
you.
> Ozone: ozone server should create missing metadata directory if it has
> permission to
> ------------------------------------------------------------------------------------
>
> Key: HDFS-12053
> URL: https://issues.apache.org/jira/browse/HDFS-12053
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Attachments: HDFS-12053-HDFS-7240.001.patch,
> HDFS-12053-HDFS-7240.002.patch
>
>
> Datanode state machine right now simple fails if container metadata directory
> is missing, it is better to create the directory if it has permission to.
> This is extremely useful at a fresh setup, usually we set
> {{ozone.container.metadata.dirs}} to be under same parent of
> {{dfs.datanode.data.dir}}. E.g
> * /hadoop/hdfs/data
> * /hadoop/hdfs/scm
> if I don't pre-setup /hadoop/hdfs/scm/repository, ozone could not be started.
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