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https://issues.apache.org/jira/browse/HBASE-12667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rajeshbabu Chintaguntla resolved HBASE-12667.
---------------------------------------------
Resolution: Duplicate
Already fixed as part of HBASE-12901. Marking as duplicate.
> Deadlock in AssignmentManager
> -----------------------------
>
> Key: HBASE-12667
> URL: https://issues.apache.org/jira/browse/HBASE-12667
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.98.0
> Reporter: zhaoyunjiong
>
> No order between regionPlans and regionStates caused dead lock.
> Trunk don't have the problem since it's already got refactor.
> "master:phxhshdc11en0004:60000":
> at
> org.apache.hadoop.hbase.master.AssignmentManager.clearRegionPlan(AssignmentManager.java:2898)
> - waiting to lock <0x000000048cefe520> (a java.util.TreeMap)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.regionOnline(AssignmentManager.java:1286)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.handleRegionSplitting(AssignmentManager.java:3552)
> - locked <0x000000048cf6fc10> (a
> org.apache.hadoop.hbase.master.RegionStates)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.processRegionsInTransition(AssignmentManager.java:732)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.processRegionInTransition(AssignmentManager.java:601)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.processDeadServersAndRecoverLostRegions(AssignmentManager.java:2851)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.processDeadServersAndRegionsInTransition(AssignmentManager.java:519)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.joinCluster(AssignmentManager.java:459)
> at
> org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:900)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:609)
> at java.lang.Thread.run(Thread.java:744)
> "AM.-pool1-t10":
> at
> org.apache.hadoop.hbase.master.RegionStates.getRegionAssignments(RegionStates.java:154)
> - waiting to lock <0x000000048cf6fc10> (a
> org.apache.hadoop.hbase.master.RegionStates)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.getSnapShotOfAssignment(AssignmentManager.java:3610)
> at
> org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.getRegionAssignmentsByServer(BaseLoadBalancer.java:1146)
> at
> org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.createCluster(BaseLoadBalancer.java:959)
> at
> org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.randomAssignment(BaseLoadBalancer.java:1010)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.getRegionPlan(AssignmentManager.java:2209)
> - locked <0x000000048cefe520> (a java.util.TreeMap)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.getRegionPlan(AssignmentManager.java:2166)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1886)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1445)
> at
> org.apache.hadoop.hbase.master.AssignCallable.call(AssignCallable.java:45)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:744)
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