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https://issues.apache.org/jira/browse/HADOOP-3805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12619009#action_12619009
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Pete Wyckoff commented on HADOOP-3805:
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Discussion of options and kernels needed for better write performance in fuse:
http://www.nabble.com/fuse-performance-td18271595.html
basically need to use -o big_writes and have a kernel > 2.6.26-rc*
I don't currently have access to such a kernel, but it's probably worth while
just adding the -obig_writes option by default and having a conifg vars
no_big_writes use_big_writes.
I will do up a patch.
> improve fuse-dfs write performance which is 33% slower than hadoop dfs
> -copyFromLocal
> -------------------------------------------------------------------------------------
>
> Key: HADOOP-3805
> URL: https://issues.apache.org/jira/browse/HADOOP-3805
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/fuse-dfs
> Reporter: Pete Wyckoff
> Priority: Minor
>
> on hadoop17 running on the namenode/fuse mount point, fuse is 33% slower for
> writing a 1GB file. I don't know right now how to improve this but thought I
> should open up a JIRA for it.
> Note - this benchmark is with no tuning or special fuse config params.
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