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Posted to dev@hbase.apache.org by "Himanshu Vashishtha (JIRA)" <ji...@apache.org> on 2014/02/18 07:21:19 UTC
[jira] [Created] (HBASE-10563) Set name for FlushHandler thread
Himanshu Vashishtha created HBASE-10563:
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Summary: Set name for FlushHandler thread
Key: HBASE-10563
URL: https://issues.apache.org/jira/browse/HBASE-10563
Project: HBase
Issue Type: Bug
Components: regionserver
Affects Versions: 0.98.0
Reporter: Himanshu Vashishtha
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:
{code}
"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)
{code}
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