Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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0.98.0
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None
Description
The FlushHandler thread in MemStoreFlusher class uses default thread name (Thread -XX). This is un-intentional and also confusing in case when there are multiple handlers.
Current Stack trace looks like this:
"Thread-18" prio=10 tid=0x00007f4e8cb21800 nid=0x356e waiting on condition [0x00007f4e6d49a000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x00000004e5684b00> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:196) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025) at java.util.concurrent.DelayQueue.poll(DelayQueue.java:201) at java.util.concurrent.DelayQueue.poll(DelayQueue.java:39) at org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:228) at java.lang.Thread.run(Thread.java:662)