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https://issues.apache.org/jira/browse/MAPREDUCE-2850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ravi Gummadi updated MAPREDUCE-2850:
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Attachment: MR2850.v0.patch
Attaching first-cut patch that adds unit test for MR-2413.
The unit test checks if good mapred local dirs of TaskTracker are getting
updated or not when disks fail. To mimic disk failure, I replaced the specific
mapred-local-directory with a regular-file of the same name --- thus leading to
DiskChecker.checkDir() to fail.
Please review the patch and provide your comments.
> TaskTracker disk failure handling (MR-2413) has no test coverage
> ----------------------------------------------------------------
>
> Key: MAPREDUCE-2850
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2850
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: tasktracker
> Affects Versions: 0.20.204.0
> Reporter: Eli Collins
> Assignee: Ravi Gummadi
> Fix For: 0.20.205.0
>
> Attachments: MR2850.v0.patch
>
>
> MR-2413 doesn't have any test coverage that eg tests that the TT can survive
> disk failure.
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