Ashu Pachauri created HBASE-14953:
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Summary: HBaseInterClusterReplicationEndpoint: Do not retry the
whole batch of edits in case of RejectedExecutionException
Key: HBASE-14953
URL: https://issues.apache.org/jira/browse/HBASE-14953
Project: HBase
Issue Type: Bug
Components: Replication
Affects Versions: 2.0.0, 1.2.0, 1.3.0
Reporter: Ashu Pachauri
Assignee: Ashu Pachauri
When we have wal provider set to multiwal, the ReplicationSource has multiple
worker threads submitting batches to HBaseInterClusterReplicationEndpoint. In
such a scenario, it is quite common to encounter RejectedExecutionException
because it takes quite long for shipping edits to peer cluster compared to
reading edits from source and submitting more batches to the endpoint.
The logs are just filled with warnings due to this very exception.
Since we subdivide batches before actually shipping them, we don't need to fail
and resend the whole batch if one of the sub-batches fails with
RejectedExecutionException. Rather, we should just retry the failed
sub-batches.
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