Thread 4139 (regionserver/hbase412.example.com/10.158.6.53:60020-splits-1429003183537):
State: WAITING
Blocked count: 131
Waited count: 228
Waiting on java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync@50714dc3
Stack:
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock.lock(ReentrantReadWriteLock.java:943)
org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1371)
org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1325)
org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.stepsBeforePONR(SplitTransactionImpl.java:352)
org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.createDaughters(SplitTransactionImpl.java:252)
org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.execute(SplitTransactionImpl.java:509)
org.apache.hadoop.hbase.regionserver.SplitRequest.run(SplitRequest.java:84)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
java.lang.Thread.run(Thread.java:745)