Martijn Visser created FLINK-40908:
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Summary: HBaseITCase.test fails with expected: <6> but was: <0>
Key: FLINK-40908
URL: https://issues.apache.org/jira/browse/FLINK-40908
Project: Flink
Issue Type: Bug
Components: Connectors / HBase
Reporter: Martijn Visser
{{HBaseITCase.test}} reads back no rows from the sink table every time it got
that far since the test moved to HBase 2.6.6 on 2026-07-13 (FLINK-40133). Most
recent:
https://github.com/apache/flink-connector-hbase/actions/runs/36281884060/job/108515165025
(2026-09-27, Flink 1.20.3, JDK 17)
{code}
[ERROR] org.apache.flink.streaming.tests.HBaseITCase.test Time elapsed:
170.224 s <<< FAILURE!
org.opentest4j.AssertionFailedError: expected: <6> but was: <0>
at
org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151)
at
org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132)
at
org.junit.jupiter.api.AssertEquals.failNotEqual(AssertEquals.java:197)
at
org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:150)
at
org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:145)
at org.junit.jupiter.api.Assertions.assertEquals(Assertions.java:531)
at
org.apache.flink.streaming.tests.HBaseITCase.test(HBaseITCase.java:121)
{code}
The HBase, JobManager and TaskManager containers all start. It failed the same
way on the push of e0d1e58932 and on all nine weeklies from 2026-07-19 to
2026-09-27 in which the main cell got to the test (2026-08-02 and 2026-09-06
were cancelled by the v4.0 cell). The last green weekly was 2026-05-24, still
on 2.6.4. Since 2026-10-04 the test fails earlier, in the HBase image build.
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