GitHub user kl0u opened a pull request:
https://github.com/apache/flink/pull/3961
[FLINK-6656] [cep] Change element PriorityQueue to MapState.
This is to leverage the fact that RocksDB already returns the
keys sorted. So now elements, instead of being stores in a PQ
and all of them being deserialized and serialized at each incoming
element, the are stored in a MapState with the key being the
timestamp and the value, a List of elements that refer to the
same timestamp.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kl0u/flink cep-map-state-pr
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3961.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 #3961
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