Charlie Qiangeng Xu created HBASE-17159: -------------------------------------------
Summary: Better the Assignment plan when server aborted or creating tables, etc. Key: HBASE-17159 URL: https://issues.apache.org/jira/browse/HBASE-17159 Project: HBase Issue Type: New Feature Components: Balancer, Region Assignment Affects Versions: 1.2.4, 2.0.0 Reporter: Charlie Qiangeng Xu When master processing a dead serve or creating a new table, the assignment plan would be generated based on the roundRobinAssignment method of balancer. Yet if these operations happen a lot, the cluster would be out of balance both on table level and server level. Balancer would be triggered and may cause huge amount of region moves( This is what we observed). Ideally, the assignment should be able to consider the table or cluster level balance as well as locality(for the case of dead server). -- This message was sent by Atlassian JIRA (v6.3.4#6332)