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https://issues.apache.org/jira/browse/BEAM-7112?focusedWorklogId=230087&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-230087
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ASF GitHub Bot logged work on BEAM-7112:
----------------------------------------
Author: ASF GitHub Bot
Created on: 19/Apr/19 12:13
Start Date: 19/Apr/19 12:13
Worklog Time Spent: 10m
Work Description: mxm commented on pull request #8351: [BEAM-7112]
[flink] Defer state cleanup till bundle completion
URL: https://github.com/apache/beam/pull/8351#discussion_r276971342
##########
File path:
runners/flink/src/main/java/org/apache/beam/runners/flink/translation/wrappers/streaming/ExecutableStageDoFnOperator.java
##########
@@ -501,6 +512,11 @@ public void processWatermark(Watermark mark) throws
Exception {
// at this point the bundle is finished, allow the watermark
to pass
// we are restoring the previous hold in case it was already
set for side inputs
setPushedBackWatermark(backupWatermarkHold);
+ // fire cleanup timers, they can only execute after the bundle
is complete
+ // as they remove the state that the timer callback may rely on
+ while (!deferredTimers.isEmpty()) {
+ reallyFireTimer(deferredTimers.remove(0));
Review comment:
Would use `deferredTimers.pop()` here with a `Dequeue`.
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Issue Time Tracking
-------------------
Worklog Id: (was: 230087)
Time Spent: 50m (was: 40m)
> State cleanup interferes with user timer callback
> -------------------------------------------------
>
> Key: BEAM-7112
> URL: https://issues.apache.org/jira/browse/BEAM-7112
> Project: Beam
> Issue Type: Bug
> Components: runner-flink
> Affects Versions: 2.12.0
> Reporter: Thomas Weise
> Assignee: Thomas Weise
> Priority: Major
> Labels: portability-flink
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Cleanup timers and user timers are fired at the watermark. Processing of
> timers in the SDK worker is asynchronous, so it is possible that the state is
> already removed when the user timer callback executes.
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