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https://issues.apache.org/jira/browse/HADOOP-3485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12602796#action_12602796
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Chuang Liu commented on HADOOP-3485:
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Could you please clarify the situations when this call sequence happens? Could
it be fuse version related? I used FUSE 2.6.
Also, in fuse.h, the description of fuse "create" says "If this method is not
implemented or under linux kernel versions earlier than 2.6.15, the mknod() and
open() methods will be called instead". It might be interesting to try geting
rid of 'create' and moving logic in this function to 'open' such that the file
gets closed just once?
Chuang
> implement writes
> ----------------
>
> Key: HADOOP-3485
> URL: https://issues.apache.org/jira/browse/HADOOP-3485
> Project: Hadoop Core
> Issue Type: New Feature
> Components: contrib/fuse-dfs
> Reporter: Pete Wyckoff
> Priority: Minor
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> Doesn't support writes because fuse protocol first creates the file then
> closes it and re-opens it to start writing to it. So, (until hadoop-1700), we
> need a work around.
> One way to do this is to open the file with overwrite flag on the second
> open. For security, would only want to do this for zero length files (could
> even check the creation ts too, but because of clock skew, that may be
> harder).
> Doug, Craig, Nicholas - Comments?
> -- pete
> ps since mostly already implemented, this should be a very quick patch
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