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https://issues.apache.org/jira/browse/HBASE-3830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stack resolved HBASE-3830.
--------------------------
Resolution: Duplicate
Marking dup of hbase-4367. Thanks Chris.
> MemStoreFlusher deadlock detected by JVM
> ----------------------------------------
>
> Key: HBASE-3830
> URL: https://issues.apache.org/jira/browse/HBASE-3830
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.90.1
> Reporter: zhoushuaifeng
> Priority: Trivial
>
> Found one Java-level deadlock:
> =============================
> "IPC Server handler 9 on 60020":
> waiting to lock monitor 0x00000000409f3908 (object 0x00007fe7cbacbd48, a
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher),
> which is held by "IPC Server handler 7 on 60020"
> "IPC Server handler 7 on 60020":
> waiting for ownable synchronizer 0x00007fe7cbb06228, (a
> java.util.concurrent.locks.ReentrantLock$NonfairSync),
> which is held by "regionserver60020.cacheFlusher"
> "regionserver60020.cacheFlusher":
> waiting to lock monitor 0x00000000409f3908 (object 0x00007fe7cbacbd48, a
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher),
> which is held by "IPC Server handler 7 on 60020"
> Java stack information for the threads listed above:
> ===================================================
> "IPC Server handler 9 on 60020":
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.reclaimMemStoreMemory(MemStoreFlusher.java)
> - waiting to lock <0x00007fe7cbacbd48> (a
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.multi(HRegionServer.java:2558)
> at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:570)
> at
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1039)
> "IPC Server handler 7 on 60020":
> at sun.misc.Unsafe.$$YJP$$park(Native Method)
> - parking to wait for <0x00007fe7cbb06228> (a
> java.util.concurrent.locks.ReentrantLock$NonfairSync)
> at sun.misc.Unsafe.park(Unsafe.java)
> at
> java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:747)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:778)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1114)
> at
> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:186)
> at
> java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:262)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.reclaimMemStoreMemory(MemStoreFlusher.java:429)
> - locked <0x00007fe7cbacbd48> (a
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.multi(HRegionServer.java:2558)
> at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:570)
> at
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1039)
> "regionserver60020.cacheFlusher":
> at
> java.util.ResourceBundle.endLoading(ResourceBundle.java:1506)
> - waiting to lock <0x00007fe7cbacbd48> (a
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher)
> at
> java.util.ResourceBundle.findBundle(ResourceBundle.java:1379)
> at
> java.util.ResourceBundle.findBundle(ResourceBundle.java:1292)
> at
> java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1234)
> at java.util.ResourceBundle.getBundle(ResourceBundle.java:832)
> at sun.util.resources.LocaleData$1.run(LocaleData.java:127)
> at java.security.AccessController.$$YJP$$doPrivileged(Native
> Method)
> at
> java.security.AccessController.doPrivileged(AccessController.java)
> at
> sun.util.resources.LocaleData.getBundle(LocaleData.java:125)
> at
> sun.util.resources.LocaleData.getTimeZoneNames(LocaleData.java:97)
> at
> sun.util.TimeZoneNameUtility.getBundle(TimeZoneNameUtility.java:115)
> at
> sun.util.TimeZoneNameUtility.retrieveDisplayNames(TimeZoneNameUtility.java:80)
> at java.util.TimeZone.getDisplayNames(TimeZone.java:399)
> at java.util.TimeZone.getDisplayName(TimeZone.java:350)
> at java.util.Date.toString(Date.java:1025)
> at java.lang.String.valueOf(String.java:2826)
> at java.lang.StringBuilder.append(StringBuilder.java:115)
> at
> org.apache.hadoop.hbase.regionserver.PriorityCompactionQueue$CompactionRequest.toString(PriorityCompactionQueue.java:114)
> at java.lang.String.valueOf(String.java:2826)
> at java.lang.StringBuilder.append(StringBuilder.java:115)
> at
> org.apache.hadoop.hbase.regionserver.PriorityCompactionQueue.addToRegionsInQueue(PriorityCompactionQueue.java:145)
> - locked <0x00007fe7ccabd258> (a java.util.HashMap)
> at
> org.apache.hadoop.hbase.regionserver.PriorityCompactionQueue.add(PriorityCompactionQueue.java:188)
> at
> org.apache.hadoop.hbase.regionserver.CompactSplitThread.requestCompaction(CompactSplitThread.java:140)
> - locked <0x00007fe7cbaf08c8> (a
> org.apache.hadoop.hbase.regionserver.CompactSplitThread)
> at
> org.apache.hadoop.hbase.regionserver.CompactSplitThread.requestCompaction(CompactSplitThread.java:118)
> - locked <0x00007fe7cbaf08c8> (a
> org.apache.hadoop.hbase.regionserver.CompactSplitThread)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:387)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushOneForGlobalPressure(MemStoreFlusher.java:194)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.run(MemStoreFlusher.java:214)
> Found 1 deadlock.
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