GitHub user StefanRRichter opened a pull request:
https://github.com/apache/flink/pull/3523
[FLINK-5985] Report no task states for stateless tasks in checkpointing
This PR fixes [FLINK-5985]. The solution is based on acknowledging `null`
instead of some empty SubtaskState to
`CheckpointCoordinator#acknowledgeCheckpoint(...)`, so that no `TaskState` is
registered under the `JobVertexID` of a stateless task in the checkpoint.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/StefanRRichter/flink
no-taskstate-for-stateless
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3523.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 #3523
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commit af45e89d011033b98ceca455725c7f167052ec74
Author: Stefan Richter <s.rich...@data-artisans.com>
Date: 2017-03-10T16:55:45Z
[FLINK-5985] Report no task states for stateless tasks in checkpointing
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