stack created HBASE-14274:
-----------------------------
Summary: Deadlock in region metrics on shutdown:
MetricsRegionSourceImpl vs MetricsRegionAggregateSourceImpl
Key: HBASE-14274
URL: https://issues.apache.org/jira/browse/HBASE-14274
Project: HBase
Issue Type: Sub-task
Reporter: stack
Attachments: 23612.stack
Looking into parent issue, got a hang locally of TestDistributedLogReplay.
We have region closes here:
{code}
"RS_CLOSE_META-localhost:59610-0" prio=5 tid=0x00007ff65c03f800 nid=0x54347
waiting on condition [0x000000011f7ac000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x000000075636d8c0> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:867)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1197)
at
java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock.lock(ReentrantReadWriteLock.java:945)
at
org.apache.hadoop.hbase.regionserver.MetricsRegionAggregateSourceImpl.deregister(MetricsRegionAggregateSourceImpl.java:78)
at
org.apache.hadoop.hbase.regionserver.MetricsRegionSourceImpl.close(MetricsRegionSourceImpl.java:120)
at
org.apache.hadoop.hbase.regionserver.MetricsRegion.close(MetricsRegion.java:41)
at
org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1500)
at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1344)
- locked <0x00000007ff878190> (a java.lang.Object)
at
org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:102)
at
org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:103)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
{code}
They are trying to MetricsRegionAggregateSourceImpl.deregister. They want to
get a write lock on this classes local ReentrantReadWriteLock while holding
MetricsRegionSourceImpl's readWriteLock write lock.
Then, elsewhere the JmxCacheBuster is running trying to get metrics with above
locks held in reverse:
{code}
"HBase-Metrics2-1" daemon prio=5 tid=0x00007ff65e14b000 nid=0x59a03 waiting on
condition [0x0000000140ea5000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000007cade1480> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:964)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1282)
at
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:731)
at
org.apache.hadoop.hbase.regionserver.MetricsRegionSourceImpl.snapshot(MetricsRegionSourceImpl.java:193)
at
org.apache.hadoop.hbase.regionserver.MetricsRegionAggregateSourceImpl.getMetrics(MetricsRegionAggregateSourceImpl.java:115)
at
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMetrics(MetricsSourceAdapter.java:195)
at
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.updateJmxCache(MetricsSourceAdapter.java:172)
at
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMBeanInfo(MetricsSourceAdapter.java:151)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getNewMBeanClassName(DefaultMBeanServerInterceptor.java:333)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:319)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)
at org.apache.hadoop.metrics2.util.MBeans.register(MBeans.java:57)
at
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.startMBeans(MetricsSourceAdapter.java:221)
- locked <0x00000007e654bdc0> (a
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter)
at
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.start(MetricsSourceAdapter.java:96)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.registerSource(MetricsSystemImpl.java:245)
- locked <0x0000000754302660> (a
org.apache.hadoop.metrics2.impl.MetricsSystemImpl)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl$1.postStart(MetricsSystemImpl.java:229)
at sun.reflect.GeneratedMethodAccessor45.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl$3.invoke(MetricsSystemImpl.java:290)
at com.sun.proxy.$Proxy13.postStart(Unknown Source)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.start(MetricsSystemImpl.java:185)
- locked <0x0000000754302660> (a
org.apache.hadoop.metrics2.impl.MetricsSystemImpl)
at
org.apache.hadoop.metrics2.impl.JmxCacheBuster$JmxCacheBusterRunnable.run(JmxCacheBuster.java:81)
{code}
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