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https://issues.apache.org/jira/browse/BEAM-11481?focusedWorklogId=525487&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-525487
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ASF GitHub Bot logged work on BEAM-11481:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 17/Dec/20 10:51
Start Date: 17/Dec/20 10:51
Worklog Time Spent: 10m
Work Description: dmvk commented on a change in pull request #13571:
URL: https://github.com/apache/beam/pull/13571#discussion_r544993985
##########
File path:
runners/flink/src/main/java/org/apache/beam/runners/flink/translation/wrappers/streaming/DoFnOperator.java
##########
@@ -992,7 +997,23 @@ public void onProcessingTime(InternalTimer<ByteBuffer,
TimerData> timer) {
// allow overriding this in ExecutableStageDoFnOperator to set the key
context
protected void fireTimerInternal(ByteBuffer key, TimerData timerData) {
+ long oldHold = keyCoder != null ? keyedStateInternals.minWatermarkHoldMs()
: -1L;
fireTimer(timerData);
+ emitWatermarkIfHoldChanged(oldHold);
+ }
+
+ void emitWatermarkIfHoldChanged(long currentWatermarkHold) {
+ if (keyCoder != null) {
+ long newWatermarkHold = keyedStateInternals.minWatermarkHoldMs();
+ if (newWatermarkHold > currentWatermarkHold) {
+ try {
+ processInputWatermark(false);
+ } catch (Exception ex) {
+ // should not happen
Review comment:
can you please add this as a message for IllegalStateException?
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Issue Time Tracking
-------------------
Worklog Id: (was: 525487)
Time Spent: 0.5h (was: 20m)
> FlinkRunner might not advance output watermark on change of watermark hold
> --------------------------------------------------------------------------
>
> Key: BEAM-11481
> URL: https://issues.apache.org/jira/browse/BEAM-11481
> Project: Beam
> Issue Type: Bug
> Components: runner-flink
> Affects Versions: 2.26.0
> Reporter: Jan Lukavský
> Assignee: Jan Lukavský
> Priority: P0
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Output watermark of DoFnOperator is advanced only when new input watermark is
> received. The output watermark might advance even on timer or processed
> element due to updated watermark hold. This especially holds true in
> splittable DoFn.
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