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Posted to hdfs-issues@hadoop.apache.org by "Brahma Reddy Battula (JIRA)" <ji...@apache.org> on 2018/07/30 09:26:00 UTC
[jira] [Comment Edited] (HDFS-12716)
'dfs.datanode.failed.volumes.tolerated' to support minimum number of
volumes to be available
[ https://issues.apache.org/jira/browse/HDFS-12716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16561688#comment-16561688 ]
Brahma Reddy Battula edited comment on HDFS-12716 at 7/30/18 9:25 AM:
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Latest patch lgtm..Going to commit shortly by considering [~linyiqun] earlier +1 too.
May be later, we can move these constants to DN.conf or somewhere..
was (Author: brahmareddy):
latest patch lgtm..Going to commit shortly by considering [~linyiqun] earlier +1 too.
> '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
> Attachments: HDFS-12716.002.patch, HDFS-12716.003.patch, HDFS-12716.004.patch, HDFS-12716.005.patch, HDFS-12716.006.patch, HDFS-12716.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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