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https://issues.apache.org/jira/browse/HBASE-17885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16591304#comment-16591304
]
jamjae kim commented on HBASE-17885:
------------------------------------
my jstack...
still occur
After many deletion,
and reverse scans.
Repeatly print out next log
(log level : DEBUG)
DEBUG [MemStoreFlusher.1] regionserver.HRegion: NOT flushing memstore for
region testTable,,1533206547964.0125e5ba528926a2ca3a67628d55630a.,
flushing=true, writesEnabled=true
jstack :
"MemStoreFlusher.0" #114 prio=5 os_prio=0 tid=0x00007fa3d0729000 nid=0x486a
waiting on condition [0x00007fa3b9b6b000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000000a465fe60> (a
java.util.concurrent.locks.ReentrantLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
at
java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)
at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
at
org.apache.hadoop.hbase.regionserver.*StoreScanner.updateReaders(StoreScanner.java:695)*
at
org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:1127)
at
org.apache.hadoop.hbase.regionserver.HStore.updateStorefiles(HStore.java:1106)
at
org.apache.hadoop.hbase.regionserver.HStore.access$600(HStore.java:130)
at
org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.commit(HStore.java:2455)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2519)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2256)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2218)
at
org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2110)
at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2036)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:501)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:471)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$800(MemStoreFlusher.java:75)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:259)
at java.lang.Thread.run(Thread.java:748)
"RpcServer.FifoWFPBQ.default.handler=27,queue=0,port=16020" #65 daemon prio=5
os_prio=0 tid=0x00007fa3e6280000 nid=0x4801 runnable [0x00007fa3bd29a000]
java.lang.Thread.State: RUNNABLE
at
org.apache.hadoop.hbase.regionserver.DefaultMemStore$MemStoreScanner.getNext(DefaultMemStore.java:780)
at
org.apache.hadoop.hbase.regionserver.DefaultMemStore$MemStoreScanner.seekInSubLists(DefaultMemStore.java:826)
- locked <0x00000000b45aa5b8> (a
org.apache.hadoop.hbase.regionserver.DefaultMemStore$MemStoreScanner)
at
org.apache.hadoop.hbase.regionserver.DefaultMemStore$MemStoreScanner.seek(DefaultMemStore.java:818)
- locked <0x00000000b45aa5b8> (a
org.apache.hadoop.hbase.regionserver.DefaultMemStore$MemStoreScanner)
at
org.apache.hadoop.hbase.regionserver.DefaultMemStore$MemStoreScanner.seekToPreviousRow(DefaultMemStore.java:1000)
- locked <0x00000000b45aa5b8> (a
org.apache.hadoop.hbase.regionserver.DefaultMemStore$MemStoreScanner)
at
org.apache.hadoop.hbase.regionserver.ReversedKeyValueHeap.next(ReversedKeyValueHeap.java:136)
at
org.apache.hadoop.hbase.regionserver.*StoreScanner.next(StoreScanner.java:629)*
at
org.apache.hadoop.hbase.regionserver.KeyValueHeap.next(KeyValueHeap.java:147)
at
org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.populateResult(HRegion.java:5876)
at
org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:6027)
at
org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:5814)
at
org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2552)
- locked <0x000000009ee8ca10> (a
org.apache.hadoop.hbase.regionserver.ReversedRegionScannerImpl)
at
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32385)
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2150)
at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:112)
at
org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:187)
at
org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:167)
> Backport HBASE-15871 to branch-1
> --------------------------------
>
> Key: HBASE-17885
> URL: https://issues.apache.org/jira/browse/HBASE-17885
> Project: HBase
> Issue Type: Bug
> Components: Scanners
> Affects Versions: 1.3.1, 1.2.5, 1.1.8
> Reporter: ramkrishna.s.vasudevan
> Assignee: Toshihiro Suzuki
> Priority: Major
> Fix For: 1.5.0, 1.3.3, 1.4.6, 1.2.7
>
> Attachments: HBASE-17885.branch-1.001.patch,
> HBASE-17885.branch-1.001.patch, HBASE-17885.branch-1.002.patch
>
>
> Will try to rebase the branch-1 patch at the earliest. Hope the fix versions
> are correct.
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