[HBASE-16342] Backport replication tracking via system table to Branch-1

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Component/s: Replication
• Assignee: Ashu Pachauri
• Reporter: Joseph
• Created: 02/Aug/16 23:55
• Updated: 09/Mar/18 02:16
• Resolved: 09/Mar/18 02:16

Description

HBASE-16342 Added Replication WAL offset tracking out of ZooKeeper and into an HBase table. Provided new implementation of ReplicationQueues and ReplicationQueuesClient that implement this. Peer tracking still remains inside of ZooKeeper though. Includes H-Base issues: HBASE-15883, HBASE-15958, HBASE-15974, HBASE-16036, HBASE-16083, HBASE-16080, HBASE-1620, and HBASE-15937

Tested these changes on Branch-1 with IntegrationTestReplication and it appears stable. Can also handle late master startups and replication table regions going down as long as only system tables are hosted on Master and hbase:replication is hosted on Master.