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https://issues.apache.org/jira/browse/HADOOP-6467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12833515#action_12833515
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Mahadev konar commented on HADOOP-6467:
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never mind, i looked at the results you posted, looks like listatus is running
for 30 minutes, which seems pretty huge.... let me experiment and see what
numbers I am getting.
> Performance improvement for liststatus on directories in hadoop archives.
> -------------------------------------------------------------------------
>
> Key: HADOOP-6467
> URL: https://issues.apache.org/jira/browse/HADOOP-6467
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Mahadev konar
> Assignee: Mahadev konar
> Fix For: 0.22.0
>
> Attachments: Archives_performance.docx, Archives_performance.docx,
> HADOOP-6467.patch
>
>
> A liststatus call on a directory in hadoop archives leads to ( 2* number of
> files in directory) open calls to the namenode. This is very sub optimal and
> needs to be fixed to make it performant enough to be used on a daily basis.
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