Yu Li created HBASE-17676: ----------------------------- Summary: Get class name once for all in AbstractFSWAL Key: HBASE-17676 URL: https://issues.apache.org/jira/browse/HBASE-17676 Project: HBase Issue Type: Bug Components: Performance Reporter: Yu Li Assignee: Yu Li
While verifying HBASE-17471 with high write workload, observed several handler thread at getting class name in jstack, as shown below: {noformat} "B.defaultRpcServer.handler=60,queue=3,port=16020" daemon prio=10 tid=0x00007f0673835800 nid=0x4dec runnable [0x00007f06721b5000] java.lang.Thread.State: RUNNABLE at java.lang.Class.getEnclosingMethod0(Native Method) at java.lang.Class.getEnclosingMethodInfo(Class.java:964) at java.lang.Class.getEnclosingClass(Class.java:1137) at java.lang.Class.getSimpleBinaryName(Class.java:1282) at java.lang.Class.getSimpleName(Class.java:1174) at org.apache.hadoop.hbase.regionserver.wal.FSHLog.stampSequenceIdAndPublishToRingBuffer(FSHLog.java:1251) at org.apache.hadoop.hbase.regionserver.wal.FSHLog.append(FSHLog.java:1238) at org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:3173) at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2874) at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2814) at org.apache.hadoop.hbase.regionserver.RSRpcServices.doBatchOp(RSRpcServices.java:823) at org.apache.hadoop.hbase.regionserver.RSRpcServices.doNonAtomicRegionMutation(RSRpcServices.java:785) at org.apache.hadoop.hbase.regionserver.RSRpcServices.multi(RSRpcServices.java:2259) at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32213) at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:848) at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:102) at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133) at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108) at java.lang.Thread.run(Thread.java:756) {noformat} We could get the class name in constructor and use it for all places needed. -- This message was sent by Atlassian JIRA (v6.3.15#6346)