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https://issues.apache.org/jira/browse/HBASE-30396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18116064#comment-18116064
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huginn commented on HBASE-30396:
--------------------------------
PR: https://github.com/apache/hbase/pull/8667
> 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
> Priority: Major
> Labels: pull-request-available
>
> 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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