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https://issues.apache.org/jira/browse/MAPREDUCE-1140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12777476#action_12777476
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Hemanth Yamijala commented on MAPREDUCE-1140:
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Some comments on the test case:
- Can we refactor TestTrackerDistributedCacheManager and its subclass for
LinuxTaskController, by introducing an API like canRun in the base class. Let
it return true and this can be overridden in
TestTrackerDistributedCacheManagerWithLinuxTaskController to return false if
the platform is not Linux. This way, I suppose we don't have to keep
overridding every testcase in the base class everytime we make a change.
- I would enhance testReferenceCount to add 3 files instead of 2, the first
file should be localized correctly, the second should fail after the reference
count is incremented, and the third will not be localized at all. Then we can
verify that the reference count for all files is 0.
> Per cache-file refcount can become negative when tasks release
> distributed-cache files
> --------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1140
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1140
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.2, 0.21.0, 0.22.0
> Reporter: Vinod K V
> Assignee: Amareshwari Sriramadasu
> Attachments: patch-1140-1.txt, patch-1140-ydist.txt, patch-1140.txt
>
>
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