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binlijin commented on HBASE-16570: ---------------------------------- The new added UT case is to make sure after RegionLocationFinder#refreshAndWait, regions's HDFSBlocksDistribution have cached in master's memory. And change lastFullRefresh is to make HMaster start up faster when become active master from backup master, we have encounter a longer startup(backup master become active master) which last 2.5 hours because namenode in high load. - private long lastFullRefresh = 0; + // Do not scheduleFullRefresh at master startup + private long lastFullRefresh = EnvironmentEdgeManager.currentTime(); > Compute region locality in parallel at startup > ---------------------------------------------- > > Key: HBASE-16570 > URL: https://issues.apache.org/jira/browse/HBASE-16570 > Project: HBase > Issue Type: Sub-task > Reporter: binlijin > Assignee: binlijin > Fix For: 2.0.0, 1.4.0, 1.3.1 > > Attachments: HBASE-16570-master_V1.patch, > HBASE-16570-master_V2.patch, HBASE-16570-master_V3.patch, > HBASE-16570-master_V4.patch, HBASE-16570.branch-1.3-addendum.patch, > HBASE-16570_addnum.patch, HBASE-16570_addnum_v2.patch, > HBASE-16570_addnum_v3.patch, HBASE-16570_addnum_v4.patch, > HBASE-16570_addnum_v5.patch, HBASE-16570_addnum_v6.patch, > HBASE-16570_addnum_v7.patch > > -- This message was sent by Atlassian JIRA (v6.3.4#6332)