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https://issues.apache.org/jira/browse/MAPREDUCE-1823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Scott Chen updated MAPREDUCE-1823:
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Status: Open (was: Patch Available)
> Reduce the number of calls of HarFileSystem.getFileStatus in RaidNode
> ---------------------------------------------------------------------
>
> Key: MAPREDUCE-1823
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1823
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1823.txt
>
>
> RaidNode makes lots of calls of HarFileSystem.getFileStatus. This method
> fetches information from DataNode so it is slow. It becomes the bottleneck of
> the RaidNode. It will be nice if we can make this more efficient.
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