zhijiangW commented on a change in pull request #11019:
[FLINK-15914][checkpointing][metrics] Miss the barrier alignment metric for the
case of two inputs
URL: https://github.com/apache/flink/pull/11019#discussion_r375169950
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/io/InputProcessorUtil.java
##########
@@ -90,6 +91,10 @@ public static CheckpointedInputGate
createCheckpointedInputGate(
inputGate1.getNumberOfInputChannels() +
inputGate2.getNumberOfInputChannels(),
taskName,
toNotifyOnCheckpoint);
+
+ TaskIOMetricGroup taskIOMetricGroup =
toNotifyOnCheckpoint.getEnvironment().getMetricGroup().getIOMetricGroup();
+ taskIOMetricGroup.gauge("checkpointAlignmentTime",
barrierHandler::getAlignmentDurationNanos);
Review comment:
After checking the code path, the unification in `OneInputStreamTask` is not
strong related to this fix. So I prefer to submitting a hotfix or separate
ticket for handling the case of `OneInputStreamTask` in master branch.
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