GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/9610
[SPARK-8029] Robust shuffle writer
Currently, all the shuffle writer will write to target path directly, the
file could be corrupted by other attempt of the same partition on the same
executor. They should write to temporary file then rename to target path, as
what we do in output committer. In order to make the rename atomic, the
temporary file should be created in the same local directory (FileSystem).
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark safe_shuffle
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9610.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #9610
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commit fbfdda993b7b4d7bb43ebc3baeb472bde1f5b0be
Author: Davies Liu <[email protected]>
Date: 2015-11-10T23:50:06Z
use temporary file and rename to avoid concurrent write
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