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https://issues.apache.org/jira/browse/HADOOP-5585?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Owen O'Malley updated HADOOP-5585:
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Attachment: h5585.patch
This patch fixes a javadoc warning and the broken javadoc link that Chris
commented on. It also extends the testcase from HADOOP-5437 to detect the file
system statistics not being cleared between tasks.
> FileSystem statistic counters are too high when JVM reuse is enabled.
> ---------------------------------------------------------------------
>
> Key: HADOOP-5585
> URL: https://issues.apache.org/jira/browse/HADOOP-5585
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Priority: Blocker
> Fix For: 0.20.0
>
> Attachments: h5585.patch, h5585.patch
>
>
> When JVM reuse is enabled, the FileSystem.Statistics are not cleared between
> tasks. That means that the second task gets credit for its own reads and
> writes as well as the first. The third gets credit for all 3 tasks reads and
> writes.
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