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Cloudera, BigData, Semantic IoT, Hadoop, NoSQL

Cloudera CDH/CDP 및 Hadoop EcoSystem, Semantic IoT등의 개발/운영 기술을 정리합니다. gooper@gooper.com로 문의 주세요.


HMaster서버와 HRegionServer간에 시간차이가 30000ms 이상나면 HRegionServer가 기동하지 못하하게 되는데
이때는 서버간의 시간을 맞춰줄 필요가 있다.

rdate -s time.bora.net를 각 서버에서 실행해주면 time.bora.net에서 제공하는 시간으로 동기화 된다.
혹은
ntpdate time.bora.net를 실행한다.



---------------------------------------------------------------------오류내용---------------------------------------------
2016-05-03 10:47:37,007 FATAL [regionserver/gsda3/xxx.xxx.xxx.41:16020] regionserver.HRegionServer: Master rejected startup because clock is out of sync
org.apache.hadoop.hbase.ClockOutOfSyncException: org.apache.hadoop.hbase.ClockOutOfSyncException: Server gsda3,16020,1462240056111 has been rejected; Reported time is too far out of sync with master.  Time difference of 67321ms > max allowed of 30000ms
        at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:388)
        at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:262)
        at org.apache.hadoop.hbase.master.MasterRpcServices.regionServerStartup(MasterRpcServices.java:322)
        at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8615)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2117)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104)
        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:745)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
        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:325)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:2271)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:893)
        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 gsda3,16020,1462240056111 has been rejected; Reported time is too far out of sync with master.  Time difference of 67321ms > max allowed of 30000ms
        at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:388)
        at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:262)
        at org.apache.hadoop.hbase.master.MasterRpcServices.regionServerStartup(MasterRpcServices.java:322)
        at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8615)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2117)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104)
        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:745)

        at org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1235)
        at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:222)
        at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:323)
        at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$BlockingStub.regionServerStartup(RegionServerStatusProtos.java:8982)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:2269)
        ... 2 more
2016-05-03 10:47:37,008 FATAL [regionserver/gsda3/xxx.xxx.xxx.41:16020] regionserver.HRegionServer: ABORTING region server gsda3,16020,1462240056111: Unhandled: org.apache.hadoop.hbase.ClockOutOfSyncException: Server gsda3,16020,1462240056111 has been rejected; Reported time is too far out of sync with master.  Time difference of 67321ms > max allowed of 30000ms
        at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:388)
        at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:262)
        at org.apache.hadoop.hbase.master.MasterRpcServices.regionServerStartup(MasterRpcServices.java:322)
        at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8615)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2117)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104)
        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:745)

org.apache.hadoop.hbase.ClockOutOfSyncException: org.apache.hadoop.hbase.ClockOutOfSyncException: Server gsda3,16020,1462240056111 has been rejected; Reported time is too far out of sync with master.  Time difference of 67321ms > max allowed of 30000ms
        at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:388)
        at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:262)
        at org.apache.hadoop.hbase.master.MasterRpcServices.regionServerStartup(MasterRpcServices.java:322)
        at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8615)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2117)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104)
        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:745)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
        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:325)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:2271)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:893)
        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 gsda3,16020,1462240056111 has been rejected; Reported time is too far out of sync with master.  Time difference of 67321ms > max allowed of 30000ms
        at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:388)
        at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:262)
        at org.apache.hadoop.hbase.master.MasterRpcServices.regionServerStartup(MasterRpcServices.java:322)
        at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8615)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2117)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104)
        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:745)

        at org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1235)
        at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:222)
        at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:323)
        at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$BlockingStub.regionServerStartup(RegionServerStatusProtos.java:8982)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:2269)

.................

2016-05-03 10:47:37,022 INFO  [regionserver/gsda3/xxx.xxx.xxx.41:16020] regionserver.HRegionServer: STOPPED: Unhandled: org.apache.hadoop.hbase.ClockOutOfSyncException: Server gsda1,16020,1462240056111 has been rejected; Reported time is too far out of sync with master.  Time difference of 67321ms > max allowed of 30000ms
        at org.apache.hadoop.hbase.master.ServerManager.checkClockSkew(ServerManager.java:388)
        at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:262)
        at org.apache.hadoop.hbase.master.MasterRpcServices.regionServerStartup(MasterRpcServices.java:322)
        at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8615)
        at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2117)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104)
        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:745)

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27 HBase 설치하기 – Fully-distributed 2013.03.12 3795
26 HBASE Client API : 기본 기능 정리 file 2013.04.01 3697
25 Hbase Shell 명령 정리 2013.04.01 3301
24 org.apache.hadoop.hbase.PleaseHoldException: Master is initializing 2013.03.15 2879
23 HBase 설치하기 – Pseudo-distributed file 2013.03.12 2822
22 HBase, BigTable, Cassandra Schema Design file 2013.03.15 2699
21 hbase shell에서 컬럼값 검색하기(SingleColumnValueFilter이용) 2014.04.25 2603
20 hbase에 필요한 jar들 2013.04.01 2189
19 hbase shell 필드 검색 방법 2015.05.24 2124
18 HBase 0.98.12(1.2.5) for hadoop2 설치-5대에 완전분산모드 (HDFS HA상테) 2015.04.29 1242
17 Current heap configuration for MemStore and BlockCache exceeds the threshold required for successful cluster operation 2017.07.18 1158
16 column family삭제시 Column family 'delete' does not exist오류 발생하는 경우 2014.04.14 1032
15 secureCRT에서 backspace키가 작동하지 않는 경우 해결방법 2015.05.11 840
14 SASL configuration failed: javax.security.auth.login.LoginException: java.lang.NullPointerException 오류 해결방법 2015.04.02 803
13 Flume을 이용한 데이타 수집시 HBase write 성능 튜닝 file 2016.10.31 724
12 scan의 startrow, stoprow지정하는 방법 2015.04.08 559
11 Hadoop의 Datanode를 Decommission하고 나서 HBase의 regionservers파일에 해당 노드명을 지웠는데 여전히 "Dead regionser"로 표시되는 경우 처리 2018.01.25 494
10 Hbase API를 이용하여 scan시 페이징을 고려하여 목록을 가져올때 사용할 수 있는 로직의 예시를 보여줌 2017.04.26 460
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