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https://issues.apache.org/jira/browse/FLINK-41046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18133452#comment-18133452
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Purushottam Sinha commented on FLINK-41046:
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v4.0 only support till 1.19 so fixing that would be obselete anyway.
I see the issue happening in main as well. I would propose:
# Creating the fix for the main
# Making a new release 4.1
# Removing the v4.0 from the weekly run post the release
> HBaseConnectorITCase.testTableSinkDisabledBufferFlush expected [+I[1, 6]] but
> was [+I[1, 1]]
> --------------------------------------------------------------------------------------------
>
> Key: FLINK-41046
> URL: https://issues.apache.org/jira/browse/FLINK-41046
> Project: Flink
> Issue Type: Bug
> Components: Connectors / HBase
> Affects Versions: hbase-4.0.0
> Reporter: Martijn Visser
> Priority: Major
> Labels: test-stability
>
> HBaseConnectorITCase.testTableSinkDisabledBufferFlush fails intermittently on
> the v4.0 branch in the weekly runs (Flink 1.19.3). Most recent, weekly
> 2026-10-18, JDK 8, and the re-run of that job on 2026-10-19:
> https://github.com/apache/flink-connector-hbase/actions/runs/39081906348/job/117540414198
> https://github.com/apache/flink-connector-hbase/actions/runs/39081906348/job/118003776981
> {code}
> [ERROR]
> org.apache.flink.connector.hbase2.HBaseConnectorITCase.testTableSinkDisabledBufferFlush
> Time elapsed: 0.645 s <<< FAILURE!
> org.junit.ComparisonFailure:
> Different elements in arrays: expected 1 elements and received 1
> expected: [+I[1, 6]]
> received: [+I[1, 1]] expected:<+I[1, [6]]> but was:<+I[1, [1]]>
> at
> org.apache.flink.connector.hbase2.HBaseConnectorITCase.testTableSinkDisabledBufferFlush(HBaseConnectorITCase.java:725)
> {code}
> The same failure on JDK 11 on 2026-09-06 and 2026-08-02:
> https://github.com/apache/flink-connector-hbase/actions/runs/34000731246/job/101399010108
> https://github.com/apache/flink-connector-hbase/actions/runs/30725174553/job/91435387881
> That is 3 of the 8 weeklies since 2026-08-02 in which a v4.0 job ran to the
> end. v4.0 has not changed since November 2024 and contains the FLINK-36188
> fix this test was added for. On main the test has been disabled since the
> async sink migration in FLINK-35280. Because the weekly matrix is not
> fail-fast: false, this failure also cancels the main cells.
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