GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/9707
[SPARK-11740][Streaming]Fix the race condition of two checkpoints in a batch
We will do checkpoint when generating a batch and completing a batch. When
the processing time of a batch is greater than the batch interval,
checkpointing for completing an old batch may run after checkpointing for
generating a new batch. If this happens, checkpoint of an old batch actually
has the latest information, so we want to recovery from it. This PR will use
the latest checkpoint time as the file name, so that we can always recovery
from the latest checkpoint file.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark fix-checkpoint
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9707.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 #9707
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commit 494696e20382c65871cbb3c54d5155263a581018
Author: Shixiong Zhu <[email protected]>
Date: 2015-11-13T17:47:14Z
Fix the race condition of two checkpoints in a batch
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