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Hudson commented on HBASE-10085: -------------------------------- SUCCESS: Integrated in HBase-TRUNK #4715 (See [https://builds.apache.org/job/HBase-TRUNK/4715/]) HBASE-10085: Some regions aren't re-assigned after a master restarts (jeffreyz: rev 1548726) * /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java * /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStates.java * /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentManagerOnCluster.java > Some regions aren't re-assigned after a cluster restarts > -------------------------------------------------------- > > Key: HBASE-10085 > URL: https://issues.apache.org/jira/browse/HBASE-10085 > Project: HBase > Issue Type: Bug > Components: Region Assignment > Affects Versions: 0.96.1 > Reporter: Jeffrey Zhong > Assignee: Jeffrey Zhong > Fix For: 0.98.0, 0.96.1 > > Attachments: hbase-10085.patch > > > We see this issue happened in a cluster restart: > 1) when shutdown a cluster, some regions are in offline state because no > Region servers are available(stop RS and then Master) > 2) When the cluster restarts, the offlined regions are forced to be offline > again and SSH skip re-assigning them by function AM.processServerShutdown as > shown below. > {code} > 2013-12-03 10:41:56,686 INFO > [master:h2-ubuntu12-sec-1386048659-hbase-8:60000] master.AssignmentManager: > Processing 873dbd8c269f44d0aefb0f66c5b53537 in state: M_ZK_REGION_OFFLINE > 2013-12-03 10:41:56,686 DEBUG > [master:h2-ubuntu12-sec-1386048659-hbase-8:60000] master.AssignmentManager: > RIT 873dbd8c269f44d0aefb0f66c5b53537 in state=M_ZK_REGION_OFFLINE was on > deadserver; forcing offline > ... > 2013-12-03 10:41:56,739 DEBUG [AM.-pool1-t8] master.AssignmentManager: Force > region state offline {873dbd8c269f44d0aefb0f66c5b53537 state=OFFLINE, > ts=1386067316737, > server=h2-ubuntu12-sec-1386048659-hbase-6.cs1cloud.internal,60020,1386066968696} > ... > 2013-12-03 10:41:57,223 WARN > [MASTER_SERVER_OPERATIONS-h2-ubuntu12-sec-1386048659-hbase-8:60000-3] > master.RegionStates: THIS SHOULD NOT HAPPEN: unexpected > {873dbd8c269f44d0aefb0f66c5b53537 state=OFFLINE, ts=1386067316737, > server=h2-ubuntu12-sec-1386048659-hbase-6.cs1cloud.internal,60020,1386066968696} > > {code} -- This message was sent by Atlassian JIRA (v6.1#6144)