hbase异常org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hbase.ClockOutOfSyncException): org.a

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hbase版本：hbase-0.94.6-cdh4.3.2

异常描述：

启动reginserver时抛出异常

Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hbase.ClockOutOfSyncException): org.apache.hadoop.hbase.ClockOutOfSyncException: Server **,60020,1393396330710 has been rejected; Reported time is too far out of sync with master. Time difference of 120475ms > max allowed of 30000ms
at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:229)
at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:163)
at org.apache.hadoop.hbase.master.HMaster.regionServerStartup(HMaster.java:980)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:320)
at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1426)Caused by:

异常分析：

master和regionserver的时间不一致，导致抛出异常

解决方案：

调整系统时间，并定时同步时间

ps：发现只有当regionserver的时间比master早时会抛这个异常，如果晚的话，一切正常

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