Arvid Heise created FLINK-21992:
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Summary: Investigate potential buffer leak in unaligned checkpoint
Key: FLINK-21992
URL: https://issues.apache.org/jira/browse/FLINK-21992
Project: Flink
Issue Type: Bug
Affects Versions: 1.13.0
Reporter: Arvid Heise
A user on mailing list reported that his job gets stuck with unaligned
checkpoint enabled.
http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Source-Operators-Stuck-in-the-requestBufferBuilderBlocking-tt42530.html
We received two similar reports in the past, but the users didn't follow up, so
it was not as easy to diagnose as this time where the initial report already
contains many relevant data points.
Beside a buffer leak, there could also be an issue with priority notification.
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