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https://issues.apache.org/jira/browse/FLINK-40123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18118764#comment-18118764
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Martijn Visser commented on FLINK-40123:
----------------------------------------
Again on master, nightly 2026-09-18, on both the Hadoop 3.4.3 and the
AdaptiveScheduler e2e legs of the same build:
https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=79222&view=logs&j=5243f0ec-f587-5700-a50c-12b335826a41
https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=79222&view=logs&j=fb37c667-81b7-5c22-dd91-846535e99a97
{code}
2026-09-18 01:15:32,689 WARN org.apache.hadoop.fs.s3a.S3AInstrumentation [] -
Closing output stream statistics while data is still marked as pending upload
in OutputStreamStatistics{counters=((action_executor_acquired.failures=0)
(op_hflush=0) (stream_write_total_data=0)
(stream_write_exceptions_completing_upload=0) (multipart_upload_completed=0)
(stream_write_bytes=337) (stream_write_exceptions=0) ...
[FAIL] 'Run kubernetes Materialized Table test' failed after 4 minutes and 16
seconds!
Test exited with exit code 0 but the logs contained errors, exceptions or
non-empty .out files
{code}
> heck_logs_for_exceptions false-positives on S3A stream_write_exceptions
> counter, flaking test_kubernetes_materialized_table.sh
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-40123
> URL: https://issues.apache.org/jira/browse/FLINK-40123
> Project: Flink
> Issue Type: Improvement
> Affects Versions: 2.3.0, 2.4.0
> Environment: Azure build 76427, task "Run e2e tests" (log 87).
>
> https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=76427
> Reporter: Shekhar Prasad Rajak
> Priority: Major
> Fix For: 2.3.1
>
>
> The e2e test Run kubernetes Materialized Table test
> (flink-end-to-end-tests/test-scripts/test_kubernetes_materialized_table.sh)
> intermittently fails even though the test logic itself
> succeeds:
> [FAIL] 'Run kubernetes Materialized Table test' failed after 4 minutes and
> 20 seconds!
> Test exited with exit code 0 but the logs contained errors, exceptions or
> non-empty .out files
> Note exit code 0 — the test passed; the failure is raised entirely by the
> post-run log scan.
>
> How to reproduce
> Run test_kubernetes_materialized_table.sh against a SeaweedFS/S3A-backed
> catalog store; whenever the S3AInstrumentation "Closing output stream
> statistics" WARN is logged, the run fails in
> the exception check.
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