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https://issues.apache.org/jira/browse/FLINK-5033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15647684#comment-15647684
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ASF GitHub Bot commented on FLINK-5033:
---------------------------------------
GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/2771
[FLINK-5033] [cep] Advance time with incoming watermarks at CEP operator
Before the time was only advanced if the CEP had some events buffered. If
the priority queue
was empty, then an incoming watermark did not advance the time. This led to
missing timeouts
and pruning possibilities. The PR fixes this problem.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink fixCEPAdvancingTime
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2771.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 #2771
----
commit 4643fb9ffd6c5f8db3525cf96c660f017bde821c
Author: Till Rohrmann <[email protected]>
Date: 2016-11-08T14:14:36Z
[FLINK-5033] [cep] Advance time with incoming watermarks at CEP operator
Before the time was only advanced if the CEP had some events buffered. If
the priority queue
was empty, then an incoming watermark did not advance the time. This led to
missing timeouts
and pruning possibilities. The PR fixes this problem.
----
> CEP operators don't properly advance time
> -----------------------------------------
>
> Key: FLINK-5033
> URL: https://issues.apache.org/jira/browse/FLINK-5033
> Project: Flink
> Issue Type: Bug
> Components: CEP
> Affects Versions: 1.2.0, 1.1.3
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Minor
> Fix For: 1.2.0
>
>
> The CEP operator don't properly advance time in case of watermarks. Arriving
> watermarks should trigger the triggering of timeouts and pruning of event
> sequences. However, this works only if an element has arrived in the
> meantime. This is a bug and the time should also be advanced in case that no
> element arrived before the watermark.
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