[FLINK-20360] AbstractFetcherWatermarksTest$PeriodicWatermarksSuite.testPeriodicWatermarks is unstable

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Not A Problem
• Affects Version/s: 1.12.0
• Component/s: Connectors / Kafka
• Labels: test-stability
• Assignee: Aljoscha Krettek
• Reporter: Robert Metzger
• Created: 25/Nov/20 20:03
• Updated: 27/Nov/20 12:53
• Resolved: 27/Nov/20 12:53

Description

This is a CI PR run, but the change is unrelated: https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=10119&view=logs&j=c5f0071e-1851-543e-9a45-9ac140befc32&t=1fb1a56f-e8b5-5a82-00a0-a2db7757b4f5

[ERROR] Tests run: 8, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.046 s <<< FAILURE! - in org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcherWatermarksTest
[ERROR] testPeriodicWatermarks[0](org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcherWatermarksTest$PeriodicWatermarksSuite)  Time elapsed: 0.004 s  <<< FAILURE!
java.lang.AssertionError: expected:<3> but was:<102>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:834)
	at org.junit.Assert.assertEquals(Assert.java:645)
	at org.junit.Assert.assertEquals(Assert.java:631)
	at org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcherWatermarksTest$PeriodicWatermarksSuite.testPeriodicWatermarks(AbstractFetcherWatermarksTest.java:139)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)