stack created HBASE-19822:
-----------------------------
Summary: HFileCleaner threads stick around after shutdown stuck on
queue#take
Key: HBASE-19822
URL: https://issues.apache.org/jira/browse/HBASE-19822
Project: HBase
Issue Type: Bug
Reporter: stack
Assignee: stack
In thread dumps and in unit tests I see a lot of this:
Potentially hanging thread: M:0;asf903:36485-HFileCleaner.large.0-1516277241553
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
org.apache.hadoop.hbase.util.StealJobQueue.take(StealJobQueue.java:106)
org.apache.hadoop.hbase.master.cleaner.HFileCleaner.consumerLoop(HFileCleaner.java:232)
org.apache.hadoop.hbase.master.cleaner.HFileCleaner$1.run(HFileCleaner.java:201)
Potentially hanging thread: M:1;asf903:38770-HFileCleaner.large.0-1516277250526
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
org.apache.hadoop.hbase.util.StealJobQueue.take(StealJobQueue.java:106)
org.apache.hadoop.hbase.master.cleaner.HFileCleaner.consumerLoop(HFileCleaner.java:232)
org.apache.hadoop.hbase.master.cleaner.HFileCleaner$1.run(HFileCleaner.java:201)
Or long after a server has been killed in a unit test, I'll see this if a
thread dump:
Thread 1635 (M:0;asf903:36485-HFileCleaner.small.0-1516277241554):
State: WAITING
Blocked count: 0
Waited count: 1
Waiting on
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@626c1c7e
Stack:
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:549)
org.apache.hadoop.hbase.master.cleaner.HFileCleaner.consumerLoop(HFileCleaner.java:232)
org.apache.hadoop.hbase.master.cleaner.HFileCleaner$2.run(HFileCleaner.java:216)
Thread 1634 (M:0;asf903:36485-HFileCleaner.large.0-1516277241553):
State: WAITING
Blocked count: 0
Waited count: 2
Waiting on
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@2f961ff0
Stack:
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
org.apache.hadoop.hbase.util.StealJobQueue.take(StealJobQueue.java:106)
org.apache.hadoop.hbase.master.cleaner.HFileCleaner.consumerLoop(HFileCleaner.java:232)
org.apache.hadoop.hbase.master.cleaner.HFileCleaner$1.run(HFileCleaner.java:201)
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