Enis Soztutar created HBASE-11568:
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Summary: Async WAL replication for region replicas
Key: HBASE-11568
URL: https://issues.apache.org/jira/browse/HBASE-11568
Project: HBase
Issue Type: Sub-task
Reporter: Enis Soztutar
Assignee: Enis Soztutar
Fix For: 2.0.0
As mentioned in parent issue, and design docs for phase-1 (HBASE-10070) and
Phase-2 (HBASE-11183), implement asynchronous WAL replication from the WAL
files of the primary region to the secondary region replicas.
The WAL replication will build upon the pluggable replication framework
introduced in HBASE-11367, and the distributed WAL replay.
Upon having some experience with the patch, we changed the design so that there
is only one replication queue for doing the async wal replication to secondary
replicas rather than having a queue per region replica. This is due to the fact
that, we do not want to tail the logs of every region server for a single
region replica.
Handling of flushes/compactions and memstore accounting will be handled in
other subtasks.
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