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https://issues.apache.org/jira/browse/HDFS-12716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16608627#comment-16608627
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Ranith Sardar commented on HDFS-12716:
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Thank you [~brahmareddy]. :)
> 'dfs.datanode.failed.volumes.tolerated' to support minimum number of volumes
> to be available
> ---------------------------------------------------------------------------------------------
>
> Key: HDFS-12716
> URL: https://issues.apache.org/jira/browse/HDFS-12716
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Reporter: usharani
> Assignee: Ranith Sardar
> Priority: Major
> Fix For: 2.10.0, 3.2.0, 3.0.4, 3.1.2
>
> Attachments: HDFS-12716-branch-2.patch, HDFS-12716.002.patch,
> HDFS-12716.003.patch, HDFS-12716.004.patch, HDFS-12716.005.patch,
> HDFS-12716.006.patch, HDFS-12716.patch, HDFS-12716_branch-2.patch
>
>
> Currently 'dfs.datanode.failed.volumes.tolerated' supports number of
> tolerated failed volumes to be mentioned. This configuration change requires
> restart of datanode. Since datanode volumes can be changed dynamically,
> keeping this configuration same for all may not be good idea.
> Support 'dfs.datanode.failed.volumes.tolerated' to accept special
> 'negative value 'x' to tolerate failures of upto "n-x"
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