huginn created HBASE-30396:
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Summary: Release inflight buffer when replication source terminates
Key: HBASE-30396
URL: https://issues.apache.org/jira/browse/HBASE-30396
Project: HBase
Issue Type: Bug
Components: Replication
Reporter: huginn
When a replication source terminates while a WAL entry batch is in flight, its
buffer quota can remain accounted indefinitely.
ReplicationSourceShipper.shipEdits polls a WALEntryBatch from the reader queue.
The buffer quota is released after successful shipping through postShipEdits;
if the worker stops before successful shipping, the batch is no longer in the
reader queue and cleanup cannot release its quota.
Track whether the polled batch was released by successful shipping and release
the batch quota after the shipping loop when it was not successfully shipped.
Add a regression test for a stopped shipper holding an in-flight batch.
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