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https://issues.apache.org/jira/browse/HDFS-8845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14698920#comment-14698920
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Colin Patrick McCabe edited comment on HDFS-8845 at 8/17/15 6:50 PM:
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That's an interesting point, [~andrew.wang]. However, the BlockScanner should
be scheduled to rescan the block after the error occurs. So it should be
reported to the NN relatively rapidly even without adding synchronous code that
looks at the block file path.
+1 for the latest patch. Will commit in a day or two if there are no more
comments
was (Author: cmccabe):
That's an interesting point, [~awang]. However, the BlockScanner should be
scheduled to rescan the block after the error occurs. So it should be reported
to the NN relatively rapidly even without adding synchronous code that looks at
the block file path.
+1 for the latest patch. Will commit in a day or two if there are no more
comments
> DiskChecker should not traverse entire tree
> -------------------------------------------
>
> Key: HDFS-8845
> URL: https://issues.apache.org/jira/browse/HDFS-8845
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Chang Li
> Assignee: Chang Li
> Attachments: HDFS-8845.patch
>
>
> DiskChecker should not traverse entire tree because it's causing heavy disk
> load on checkDiskError()
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