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https://issues.apache.org/jira/browse/BEAM-7112?focusedWorklogId=232916&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-232916
]
ASF GitHub Bot logged work on BEAM-7112:
----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Apr/19 14:40
Start Date: 25/Apr/19 14:40
Worklog Time Spent: 10m
Work Description: mxm commented on pull request #8399: [BEAM-7112] Timer
race with state cleanup - take two
URL: https://github.com/apache/beam/pull/8399#discussion_r278583803
##########
File path:
runners/flink/src/main/java/org/apache/beam/runners/flink/translation/wrappers/streaming/ExecutableStageDoFnOperator.java
##########
@@ -401,7 +402,14 @@ private void setTimer(WindowedValue<InputT> timerElement,
TimerInternals.TimerDa
@SuppressWarnings("ByteBufferBackingArray")
private void fireCleanupTimers() {
while (!cleanupTimers.isEmpty()) {
- InternalTimer<?, TimerInternals.TimerData> timer =
cleanupTimers.remove();
+ KV<RemoteBundle, InternalTimer<?, TimerInternals.TimerData>> kv =
cleanupTimers.peek();
+ if (kv.getKey() != null && kv.getKey() == sdkHarnessRunner.remoteBundle)
{
+ // user timer and cleanup may trigger together in finish bundle,
+ // defer state cleanup to allow user timers to complete
+ return;
Review comment:
Let's move it to where it belongs, i.e. after the bundle has been finished.
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Issue Time Tracking
-------------------
Worklog Id: (was: 232916)
Time Spent: 5h 40m (was: 5.5h)
> 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
> Fix For: 2.13.0
>
> Time Spent: 5h 40m
> 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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