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https://issues.apache.org/jira/browse/FLINK-7008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16067583#comment-16067583
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ASF GitHub Bot commented on FLINK-7008:
---------------------------------------
Github user dianfu commented on a diff in the pull request:
https://github.com/apache/flink/pull/4195#discussion_r124697385
--- Diff:
flink-libraries/flink-cep/src/test/java/org/apache/flink/cep/operator/CEPOperatorTest.java
---
@@ -297,6 +297,85 @@ public void testKeyedAdvancingTimeWithoutElements()
throws Exception {
}
@Test
+ public void testKeyedCEPOperatorNFAChanged() throws Exception {
--- End diff --
Got it. Make sense and have updated the PR.
> Update NFA state only when the NFA changes.
> -------------------------------------------
>
> Key: FLINK-7008
> URL: https://issues.apache.org/jira/browse/FLINK-7008
> Project: Flink
> Issue Type: Improvement
> Components: CEP
> Affects Versions: 1.3.1
> Reporter: Kostas Kloudas
> Assignee: Dian Fu
> Fix For: 1.4.0
>
>
> Currently in the {{AbstractKeyedCEPPatternOperator.updateNFA()}} method we
> update the NFA state every time the NFA is touched. This leads to redundant
> puts/gets to the state when there are no changes to the NFA itself.
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