Sameet Agarwal created HBASE-13316:
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Summary: Reduce the downtime on panned moves of regions
Key: HBASE-13316
URL: https://issues.apache.org/jira/browse/HBASE-13316
Project: HBase
Issue Type: Improvement
Components: Balancer
Affects Versions: 2.0.0, 1.0.1, 1.1.1
Reporter: Sameet Agarwal
Assignee: Sameet Agarwal
Priority: Minor
Fix For: 2.0.0
The current behavior of a region move shuts down a region and then starts is up
in another regionserver. This causes increased latency and possibly timeouts
till the new region's cache is fully warmed up. We can make a region move less
disruptive by warming the cache in the destination region server before
shutting dow the old region.
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