Vandana Ayyalasomayajula created HBASE-13376: ------------------------------------------------
Summary: Improvements to Stochastic load balancer Key: HBASE-13376 URL: https://issues.apache.org/jira/browse/HBASE-13376 Project: HBase Issue Type: Improvement Components: Balancer Affects Versions: 0.98.12, 1.0.0 Reporter: Vandana Ayyalasomayajula Assignee: Vandana Ayyalasomayajula Priority: Minor There are two things this jira tries to address: 1. The locality picker in the stochastic balancer does not pick regions with least locality as candidates for swap/move. So when any user configures locality cost in the configs, the balancer does not always seems to move regions with bad locality. 2. When a cluster has equal number of loaded regions, it always picks the first one. It should pick a random region on one of the equally loaded servers. This improves a chance of finding a good candidate, when load picker is invoked several times. -- This message was sent by Atlassian JIRA (v6.3.4#6332)