HBase中Regionserver与Master时间不一致导致RegionServer无法启动ClockOutOfSyncException
2012-06-13 18:33
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启动HBase的时候,无法启动RegionServer,查看日志,错误如下
原来是RegionServer与Master的时间不一致造成的。由错误内容可以看出两台机器之间最大的误差时间为30000ms,一旦超过这个值便无法启动。
解决办法:同步RegionServer与Master的时间,最好周期性同步,具体方法请参考Linux时间同步设置
2012-06-13 09:33:40,057 FATAL org.apache.hadoop.hbase.regionserver.HRegionServer: Master rejected startup because clock is out of sync org.apache.hadoop.hbase.ClockOutOfSyncException: org.apache.hadoop.hbase.ClockOutOfSyncException: Server hadoop26,60020,1339551219741 has been rejected; Reported time is too far out of sync with master. Time difference of 107126ms > max allowed of 30000ms 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:95) at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:79) at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:1542) at org.apache.hadoop.hbase.regionserver.HRegionServer.tryReportForDuty(HRegionServer.java:1499) at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:572) at java.lang.Thread.run(Thread.java:662) Caused by: org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.hbase.ClockOutOfSyncException: Server hadoop26,60020,1339551219741 has been rejected; Reported time is too far out of sync with master. Time difference of 107126ms > max allowed of 30000ms at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:181) at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:129) at org.apache.hadoop.hbase.master.HMaster.regionServerStartup(HMaster.java:615) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:570) at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1039) at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:771) at org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:257) at $Proxy6.regionServerStartup(Unknown Source) at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:1538) ... 3 more 2012-06-13 09:33:40,066 FATAL org.apache.hadoop.hbase.regionserver.HRegionServer: ABORTING region server serverName=hadoop26,60020,1339551219741, load=(requests=0, regions=0, usedHeap=23, maxHeap=991): Unhandled exception: org.apache.hadoop.hbase.ClockOutOfSyncException: Server hadoop26,60020,1339551219741 has been rejected; Reported time is too far out of sync with master. Time difference of 107126ms > max allowed of 30000ms org.apache.hadoop.hbase.ClockOutOfSyncException: org.apache.hadoop.hbase.ClockOutOfSyncException: Server hadoop26,60020,1339551219741 has been rejected; Reported time is too far out of sync with master. Time difference of 107126ms > max allowed of 30000ms 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:95) at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:79) at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:1542) at org.apache.hadoop.hbase.regionserver.HRegionServer.tryReportForDuty(HRegionServer.java:1499) at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:572) at java.lang.Thread.run(Thread.java:662) Caused by: org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.hbase.ClockOutOfSyncException: Server hadoop26,60020,1339551219741 has been rejected; Reported time is too far out of sync with master. Time difference of 107126ms > max allowed of 30000ms at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:181) at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:129) at org.apache.hadoop.hbase.master.HMaster.regionServerStartup(HMaster.java:615) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:570) at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1039) at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:771) at org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:257) at $Proxy6.regionServerStartup(Unknown Source) at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:1538) ... 3 more 2012-06-13 09:33:40,066 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: STOPPED: Unhandled exception: org.apache.hadoop.hbase.ClockOutOfSyncException: Server hadoop26,60020,1339551219741 has been rejected; Reported time is too far out of sync with master. Time difference of 107126ms > max allowed of 30000ms 2012-06-13 09:33:40,066 INFO org.apache.hadoop.ipc.HBaseServer: Stopping server on 60020 2012-06-13 09:33:40,069 INFO org.apache.hadoop.hbase.regionserver.StoreFile: Allocating LruBlockCache with maximum size 198.3m 2012-06-13 09:33:40,072 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: aborting server at: hadoop26,60020,1339551219741 2012-06-13 09:33:40,072 DEBUG org.apache.hadoop.hbase.catalog.CatalogTracker: Stopping catalog tracker org.apache.hadoop.hbase.catalog.CatalogTracker@2f60877b 2012-06-13 09:33:40,173 INFO org.apache.hadoop.hbase.regionserver.Leases: regionserver60020 closing leases 2012-06-13 09:33:40,173 INFO org.apache.hadoop.hbase.regionserver.Leases: regionserver60020 closed leases 2012-06-13 09:33:40,173 INFO org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation: Closed zookeeper sessionid=0x137e373d9660018 2012-06-13 09:33:40,254 INFO org.apache.zookeeper.ZooKeeper: Session: 0x137e373d9660018 closed 2012-06-13 09:33:40,254 INFO org.apache.zookeeper.ClientCnxn: EventThread shut down 2012-06-13 09:33:40,336 INFO org.apache.zookeeper.ZooKeeper: Session: 0x337d82dda1f110c closed 2012-06-13 09:33:40,336 INFO org.apache.zookeeper.ClientCnxn: EventThread shut down 2012-06-13 09:33:40,362 INFO org.apache.hadoop.hbase.regionserver.ShutdownHook: Shutdown hook starting; hbase.shutdown.hook=true; fsShutdownHook=Thread[Thread-14,5,main] 2012-06-13 09:33:40,362 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: STOPPED: Shutdown hook 2012-06-13 09:33:40,362 INFO org.apache.hadoop.hbase.regionserver.ShutdownHook: Starting fs shutdown hook thread. 2012-06-13 09:33:40,363 INFO org.apache.hadoop.hbase.regionserver.ShutdownHook: Shutdown hook finished.
原来是RegionServer与Master的时间不一致造成的。由错误内容可以看出两台机器之间最大的误差时间为30000ms,一旦超过这个值便无法启动。
解决办法:同步RegionServer与Master的时间,最好周期性同步,具体方法请参考Linux时间同步设置
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