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https://issues.apache.org/jira/browse/HDFS-12053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16066525#comment-16066525
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Mukul Kumar Singh commented on HDFS-12053:
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Hi [~cheersyang], The patch looks good, couple of comments though
1) Both line 132 and 134 can be combined in one statement
2) Also I feel that lines 147-152 can also be removed as part of this change by
adding extra condition to line 132.
> 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
>
>
> 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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