org.apache.hadoop.hbase.ClockOutOfSyncException: org.apache.hadoop.hbase.ClockOutOfSyncException: Se

启动hbase ，hmaster启动起来，但regionServer未启动起来。

查看 regionServer节点日志如下：

2015-12-06 12:01:50,246 INFO  [regionserver60020] regionserver.HRegionServer: reportForDuty to master=Master.Hadoop,60000,1449374494585 with port=60020, startcode=1449374506907
2015-12-06 12:01:50,717 FATAL [regionserver60020] regionserver.HRegionServer: Master rejected startup because clock is out of sync
org.apache.hadoop.hbase.ClockOutOfSyncException: org.apache.hadoop.hbase.ClockOutOfSyncException: Server Slave1.Hadoop,60020,1449374506907 has been rejected; Reported time is too far out of sync with master.  Time difference of 61609ms > max allowed of 30000ms
at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:360)
at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:253)
at org.apache.hadoop.hbase.master.HMaster.regionServerStartup(HMaster.java:1397)
at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:7910)
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2093)
at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:101)
at org.apache.hadoop.hbase.ipc.FifoRpcScheduler$1.run(FifoRpcScheduler.java:74)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)


at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)
at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:95)
at org.apache.hadoop.hbase.protobuf.ProtobufUtil.getRemoteException(ProtobufUtil.java:287)
at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:2157)
at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:894)
at java.lang.Thread.run(Thread.java:662)

解决办法:

regionServer节点和hmaster节点的系统时间同步

重启ok

jps命令验证如下图