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https://issues.apache.org/jira/browse/HDFS-2186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083899#comment-13083899
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Eli Collins commented on HDFS-2186:
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{noformat}
+1 overall.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 system test framework. The patch passed system test framework compile.
{noformat}
> DN volume failures on startup are not counted
> ---------------------------------------------
>
> Key: HDFS-2186
> URL: https://issues.apache.org/jira/browse/HDFS-2186
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Reporter: Eli Collins
> Assignee: Eli Collins
> Fix For: 0.23.0
>
> Attachments: hdfs-2186-1.patch
>
>
> Volume failures detected on startup are not currently counted/reported as
> such. Eg if you have configured 4 volumes, 2 tolerated failures, and you
> start a DN with two failed volumes it will come up and report (to the NN) no
> failed volumes. The DN will still be able to tolerate 2 additional volume
> failures (ie it's OK with no valid volumes remaining). The intent of the
> volume failure toleration config value is that if more than this # of volumes
> of the total set of configured volumes have failed the DN should shutdown,
> therefore volume failures detected on startup should count against this
> quota.
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