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Duo Zhang commented on HBASE-14178: ----------------------------------- [~chenheng] Could you please also prepare patch for branches other than master and 0.98? Thanks. > regionserver blocks because of waiting for offsetLock > ----------------------------------------------------- > > Key: HBASE-14178 > URL: https://issues.apache.org/jira/browse/HBASE-14178 > Project: HBase > Issue Type: Bug > Components: regionserver > Affects Versions: 0.98.6 > Reporter: Heng Chen > Assignee: Heng Chen > Fix For: 2.0.0, 0.98.14, 1.0.2, 1.2.0, 1.1.2 > > Attachments: HBASE-14178-0.98.patch, HBASE-14178.patch, > HBASE-14178_v1.patch, HBASE-14178_v2.patch, HBASE-14178_v3.patch, > HBASE-14178_v4.patch, HBASE-14178_v5.patch, HBASE-14178_v6.patch, > HBASE-14178_v7.patch, jstack > > > My regionserver blocks, and all client rpc timeout. > I print the regionserver's jstack, it seems a lot of threads were blocked > for waiting offsetLock, detail infomation belows: > PS: my table's block cache is off > {code} > "B.DefaultRpcServer.handler=2,queue=2,port=60020" #82 daemon prio=5 os_prio=0 > tid=0x0000000001827000 nid=0x2cdc in Object.wait() [0x00007f3831b72000] > java.lang.Thread.State: WAITING (on object monitor) > at java.lang.Object.wait(Native Method) > at java.lang.Object.wait(Object.java:502) > at org.apache.hadoop.hbase.util.IdLock.getLockEntry(IdLock.java:79) > - locked <0x0000000773af7c18> (a > org.apache.hadoop.hbase.util.IdLock$Entry) > at > org.apache.hadoop.hbase.io.hfile.HFileReaderV2.readBlock(HFileReaderV2.java:352) > at > org.apache.hadoop.hbase.io.hfile.HFileBlockIndex$BlockIndexReader.loadDataBlockWithScanInfo(HFileBlockIndex.java:253) > at > org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekTo(HFileReaderV2.java:524) > at > org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.reseekTo(HFileReaderV2.java:572) > at > org.apache.hadoop.hbase.regionserver.StoreFileScanner.reseekAtOrAfter(StoreFileScanner.java:257) > at > org.apache.hadoop.hbase.regionserver.StoreFileScanner.reseek(StoreFileScanner.java:173) > at > org.apache.hadoop.hbase.regionserver.NonLazyKeyValueScanner.doRealSeek(NonLazyKeyValueScanner.java:55) > at > org.apache.hadoop.hbase.regionserver.KeyValueHeap.generalizedSeek(KeyValueHeap.java:313) > at > org.apache.hadoop.hbase.regionserver.KeyValueHeap.requestSeek(KeyValueHeap.java:269) > at > org.apache.hadoop.hbase.regionserver.StoreScanner.reseek(StoreScanner.java:695) > at > org.apache.hadoop.hbase.regionserver.StoreScanner.seekAsDirection(StoreScanner.java:683) > at > org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:533) > at > org.apache.hadoop.hbase.regionserver.KeyValueHeap.next(KeyValueHeap.java:140) > at > org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.populateResult(HRegion.java:3889) > at > org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:3969) > at > org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:3847) > at > org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.next(HRegion.java:3820) > - locked <0x00000005e5c55ad0> (a > org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl) > at > org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.next(HRegion.java:3807) > at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4779) > at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4753) > at > org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:2916) > at > org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29583) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2027) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:114) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:94) > at java.lang.Thread.run(Thread.java:745) > Locked ownable synchronizers: > - <0x00000005e5c55c08> (a > java.util.concurrent.locks.ReentrantLock$NonfairSync) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)