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
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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