Ted Yu created HBASE-6958:
-----------------------------
Summary: TestAssignmentManager fails in trunk
Key: HBASE-6958
URL: https://issues.apache.org/jira/browse/HBASE-6958
Project: HBase
Issue Type: Bug
Reporter: Ted Yu
>From
>https://builds.apache.org/job/HBase-TRUNK/3432/testReport/junit/org.apache.hadoop.hbase.master/TestAssignmentManager/testBalanceOnMasterFailoverScenarioWithOpenedNode/
> :
{code}
Stacktrace
java.lang.Exception: test timed out after 5000 milliseconds
at java.lang.System.arraycopy(Native Method)
at java.lang.ThreadGroup.remove(ThreadGroup.java:969)
at java.lang.ThreadGroup.threadTerminated(ThreadGroup.java:942)
at java.lang.Thread.exit(Thread.java:732)
...
2012-10-06 00:46:12,521 DEBUG [MASTER_CLOSE_REGION-mockedAMExecutor-0]
zookeeper.ZKUtil(1141): mockedServer-0x13a33892de7000e Retrieved 81 byte(s) of
data from znode /hbase/unassigned/dc01abf9cd7fd0ea256af4df02811640 and set
watcher; region=t,,1349484359011.dc01abf9cd7fd0ea256af4df02811640.,
state=M_ZK_REGION_OFFLINE, servername=master,1,1, createTime=1349484372509,
payload.length=0
2012-10-06 00:46:12,522 ERROR [MASTER_CLOSE_REGION-mockedAMExecutor-0]
executor.EventHandler(205): Caught throwable while processing event
RS_ZK_REGION_CLOSED
java.lang.NullPointerException
at
org.apache.hadoop.hbase.master.TestAssignmentManager$MockedLoadBalancer.randomAssignment(TestAssignmentManager.java:773)
at
org.apache.hadoop.hbase.master.AssignmentManager.getRegionPlan(AssignmentManager.java:1709)
at
org.apache.hadoop.hbase.master.AssignmentManager.getRegionPlan(AssignmentManager.java:1666)
at
org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1435)
at
org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1155)
at
org.apache.hadoop.hbase.master.TestAssignmentManager$AssignmentManagerWithExtrasForTesting.assign(TestAssignmentManager.java:1035)
at
org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1130)
at
org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1125)
at
org.apache.hadoop.hbase.master.handler.ClosedRegionHandler.process(ClosedRegionHandler.java:106)
at
org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:202)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
2012-10-06 00:46:12,522 DEBUG [pool-1-thread-1-EventThread]
master.AssignmentManager(670): Handling transition=M_ZK_REGION_OFFLINE,
server=master,1,1, region=dc01abf9cd7fd0ea256af4df02811640, current state from
region state map ={t,,1349484359011.dc01abf9cd7fd0ea256af4df02811640.
state=OFFLINE, ts=1349484372508, server=null}
{code}
Looks like NPE happened on this line:
{code}
this.gate.set(true);
{code}
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