Jason Gustafson created KAFKA-10826:
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Summary: Ensure raft io thread wakes up after linger expiration
Key: KAFKA-10826
URL: https://issues.apache.org/jira/browse/KAFKA-10826
Project: Kafka
Issue Type: Sub-task
Reporter: Jason Gustafson
Assignee: Jason Gustafson
When scheduling an append, we currently only wakeup the IO thread after the
batch is ready to drain. If the IO thread is blocking in `poll()`, there is no
guarantee that it will get woken up by a subsequent append. We need to ensure
that the thread gets woken up at least once when the linger timer starts
ticking so that the IO thread will be ready when the batch is ready to drain.
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