showuon commented on code in PR #26048:
URL: https://github.com/apache/flink/pull/26048#discussion_r1924825295
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flink-tests/src/test/java/org/apache/flink/test/streaming/api/datastream/WatermarkITCase.java:
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@@ -135,6 +135,27 @@ void after() throws Exception {
}
}
+ private JobID submitJobAndWaitForOperator3Initialized(
+ StreamGraph streamGraph, boolean watermarkIsLongType)
+ throws ExecutionException, InterruptedException {
+ // block operator2's subtask 0 and subtask 1
+ Operator2ProcessFunction.blockSubTasks(0, 1);
+
+ // submit job
+ JobID jobId = flinkCluster.submitJob(streamGraph).get().getJobID();
+
+ // wait all operator3 tasks have initialized completely
+ tryWaitUntilCondition(
+ () -> Operator3ProcessFunction.receivedWatermarks.size() ==
DEFAULT_PARALLELISM);
Review Comment:
Here is the main fix, by waiting for `receivedWatermarks` size, not
`attemptIds` size.
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