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https://issues.apache.org/jira/browse/HDFS-4950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13714819#comment-13714819
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Colin Patrick McCabe commented on HDFS-4950:
--------------------------------------------
>From the FUSE mailing list, it appears that you can invalidate the attribute
>cache using inode notify (but it may or may not be available from the high
>level API)
> newly created files in fuse_dfs appear to be length 0 for a while due to
> attribute caching
> ------------------------------------------------------------------------------------------
>
> Key: HDFS-4950
> URL: https://issues.apache.org/jira/browse/HDFS-4950
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: fuse-dfs
> Affects Versions: 2.3.0
> Reporter: Colin Patrick McCabe
> Attachments: 2013-07-02.correct-noattr-trace.txt,
> 2013-07-02.incorrect-attr-trace.txt
>
>
> For some reason, newly created files in fuse_dfs appear to be length 0 for a
> while.
> {code}
> cmccabe@keter:~> echo hi > hi
> cmccabe@keter:~> mv hi /mnt/tmp/hi
> cmccabe@keter:~> ls -l /mnt/tmp
> total 0
> -rw-r--r-- 1 cmccabe users 0 Jul 2 13:24 hi
> cmccabe@keter:~> cat /mnt/tmp/hi
> cmccabe@keter:~> cat /mnt/tmp/hi
> hi
> {code}
> Disabling FUSE attribute caching fixes this.
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