GitHub user kl0u opened a pull request:
https://github.com/apache/flink/pull/3541
[FLINK-6032] [cep] Clean-up operator state when not needed.
The CEP operator now cleans the registered state for a key. This happens:
1) for the priority queue, when the queue is empty.
2) for the NFA, when its shared buffer is empty.
3) the key is removed from the `InternalWatermarkCallbackService` when both
of the above are empty.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kl0u/flink cep-state-cleanup
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3541.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 #3541
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commit 7a5d5a348d0784599f96f9fa8d12dce72924814f
Author: kl0u <kklou...@gmail.com>
Date: 2017-03-13T19:36:57Z
[FLINK-6032] [cep] Clean-up operator state when not needed.
The CEP operator now cleans the registered state for a
key. This happens:
1) for the priority queue, when the queue is empty.
2) for the NFA, when its shared buffer is empty.
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