GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/3227
[backport] [FLINK-5667] [state] Synchronize asynchronous checkpointing and
close operation
Backport of #3226 onto `release-1.2` branch.
This PR synchronizes asynchronous checkpointing and close operations of a
StreamTask.
The synchronization prevents that an acknowledged checkpoint gets discarded
and that
a discarded checkpoint gets acknowledged. It achieves this by introducing
an atomic
state variable which guards against late close and acknowledge operations.
cc @uce, @StefanRRichter
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink
asyncCheckpointingFixBackport
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3227.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 #3227
----
commit d0a2499f10060f159ad92500338125850a82c0c4
Author: Till Rohrmann <[email protected]>
Date: 2017-01-27T15:26:22Z
[FLINK-5667] [state] Synchronize asynchronous checkpointing and close
operation
This PR synchronizes asynchronous checkpointing and close operations of a
StreamTask.
The synchronization prevents that an acknowledged checkpoint gets discarded
and that
a discarded checkpoint gets acknowledged. It achieves this by introducing
an atomic
state variable which guards against late close and acknowledge operations.
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