HBase環境分佈式環境搭建完成之後，在啓動後發現有2個節點起不來，報錯如下
2016-04-27 03:05:32,824 FATAL [regionserver60020] regionserver.HRegionServer: ABORTING region server slave119,60020,1461697531722: Unhandled: org.apache.hadoop.hbase.ClockOutOfSyncException: Server slave119,60020,1461697531722 has been rejected; Reported time is too far out of sync with master. Time difference of 43341670ms > max allowed of 30000ms at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:358) at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:251) at org.apache.hadoop.hbase.master.HMaster.regionServerStartup(HMaster.java:1406) at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:7910) at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2187) at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104) at org.apache.hadoop.hbase.ipc.FifoRpcScheduler$1.run(FifoRpcScheduler.java:74) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) org.apache.hadoop.hbase.ClockOutOfSyncException: org.apache.hadoop.hbase.ClockOutOfSyncException: Server slave119,60020,1461697531722 has been rejected; Reported time is too far out of sync with master. Time difference of 43341670ms > max allowed of 30000ms at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:358) at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:251) at org.apache.hadoop.hbase.master.HMaster.regionServerStartup(HMaster.java:1406) at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:7910) at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2187) at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104) at org.apache.hadoop.hbase.ipc.FifoRpcScheduler$1.run(FifoRpcScheduler.java:74) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106) at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:95) at org.apache.hadoop.hbase.protobuf.ProtobufUtil.getRemoteException(ProtobufUtil.java:298) at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:2193) at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:899) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(org.apache.hadoop.hbase.ClockOutOfSyncException): org.apache.hadoop.hbase.ClockOutOfSyncException: Server slave119,60020,1461697531722 has been rejected; Reported time is too far out of sync with master. Time difference of 43341670ms > max allowed of 30000ms at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:358) at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:251) at org.apache.hadoop.hbase.master.HMaster.regionServerStartup(HMaster.java:1406) at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:7910) at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2187) at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104) at org.apache.hadoop.hbase.ipc.FifoRpcScheduler$1.run(FifoRpcScheduler.java:74) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1491) at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1693) at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1760) at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$BlockingStub.regionServerStartup(RegionServerStatusProtos.java:8277) at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:2191) ... 2 more
原因:失敗節點的服務器時間與其他節點服務器時間嚴重不一致。
解決辦法:把時間調整到一致即可。