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https://issues.apache.org/jira/browse/HADOOP-15450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16471047#comment-16471047
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Arpit Agarwal commented on HADOOP-15450:
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v2 patch refactors tests since TestBasicDiskValidator derives TestDiskChecker.
Moved subset of tests to a separate class.
> Avoid fsync storm triggered by DiskChecker and handle disk full situation
> -------------------------------------------------------------------------
>
> Key: HADOOP-15450
> URL: https://issues.apache.org/jira/browse/HADOOP-15450
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Kihwal Lee
> Assignee: Arpit Agarwal
> Priority: Blocker
> Attachments: HADOOP-15450.01.patch, HADOOP-15450.02.patch
>
>
> Fix disk checker issues reported by [~kihwal] in HADOOP-13738
> There are non-hdfs users of DiskChecker, who use it proactively, not just on
> failures. This was fine before, but now it incurs heavy I/O due to
> introduction of fsync() in the code.
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