Implement new open/close logic in handlers and stop using heartbeats for
open/close messages
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Key: HBASE-2697
URL: https://issues.apache.org/jira/browse/HBASE-2697
Project: HBase
Issue Type: Sub-task
Components: ipc, master, regionserver
Reporter: Jonathan Gray
Priority: Critical
Fix For: 0.21.0
This issue is doing the meat of what HBASE-2485 is about and continues what was
started in HBASE-2694 after some code cleanup to make life easier.
This deals with no longer piggybacking messages from Master to RegionServers on
heartbeat responses and instead sending direct unsolicited messages. This also
deals with moving the open/close logic fully into handlers and removing the
existing open/close code on both the RS and M sides. There may also be some
changes to the master in-memory state of regions in transition. The new load
balancer will probably be introduced with this issue but not fully integrated
yet.
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