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https://issues.apache.org/jira/browse/HADOOP-3797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12615325#action_12615325
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Pete Wyckoff commented on HADOOP-3797:
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Hi Craig,
On a directory with 30,000 files, the module's memory and CPU go up
dramatically and at 15 minutes, I killed it. With a few hundred or a thousand
files, it 's just slow, but at the 10s of thousands it becomes unusable.
-- pete
> FUSE module chokes on directories with lots (10,000+ or so) files
> -----------------------------------------------------------------
>
> Key: HADOOP-3797
> URL: https://issues.apache.org/jira/browse/HADOOP-3797
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/fuse-dfs
> Reporter: Pete Wyckoff
>
> For some reason, fuse is calling getattr for every file after doing a
> readdir. The readdir supplies the same info so there's no reason for the
> getattr calls (that I can see) and it does not do this for subdirectories.
> I don't know why it's doing this, so I sent an email to the fuse development
> list.
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