ERROR: org.apache.hadoop.hbase.client.NoServerForRegionException

  • javenzhen

    2015-09-11 15:47:54
  • Hadoop
  • 原创
1、Hbase集群所有异常宕机之后，启动完Hadoop->Zookeeper->Hbase
2、在查看表的时候出现报错
  1. hbase(main):001:0> scan 'mytab'
  2. ROW COLUMN+CELL
  3. 15/09/11 15:16:08 INFO ipc.HBaseRPC: Problem connecting to server: slave3/10.10.10.73:60020
  4. 15/09/11 15:17:10 INFO ipc.HBaseRPC: Problem connecting to server: slave3/10.10.10.73:60020
  5. 15/09/11 15:18:12 INFO ipc.HBaseRPC: Problem connecting to server: slave3/10.10.10.73:60020
  6. 15/09/11 15:19:14 INFO ipc.HBaseRPC: Problem connecting to server: slave3/10.10.10.73:60020
  7. 15/09/11 15:20:17 INFO ipc.HBaseRPC: Problem connecting to server: slave3/10.10.10.73:60020
  8. 15/09/11 15:21:21 INFO ipc.HBaseRPC: Problem connecting to server: slave3/10.10.10.73:60020
  9. 15/09/11 15:22:26 INFO ipc.HBaseRPC: Problem connecting to server: slave3/10.10.10.73:60020

  11. ERROR: org.apache.hadoop.hbase.client.NoServerForRegionException: Unable to find region for mytab,,99999999999999 after 7 tries.
3、查看lHbase的log日志，发现dfs是安全模式
  1. 2015-09-11 15:28:09,429 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
  2. 2015-09-11 15:28:19,433 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
  3. 2015-09-11 15:28:29,458 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
  4. 2015-09-11 15:28:29,540 INFO org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation: getMaster attempt 23 of 140 failed; retrying after sleep of 64134
  5. org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.hbase.ipc.ServerNotRunningYetException: Server is not running yet
4、查看dfs模式，果然是安全模式
  1. grid@master1:~$ hadoop dfsadmin -safemode get
  2. Safe mode is ON
5、关闭dfs安全模式
  1. grid@master1:~$ hadoop dfsadmin -safemode leave
  2. Safe mode is OFF
6、再次启动Hbase，能正常启动
  1. grid@master1:~$ start-hbase.sh
  2. starting master, logging to /usr/local/hbase/logs/hbase-grid-master-master1.out
  3. slave1: starting regionserver, logging to /usr/local/hbase/bin/../logs/hbase-grid-regionserver-slave1.out
  4. slave2: starting regionserver, logging to /usr/local/hbase/bin/../logs/hbase-grid-regionserver-slave2.out
  5. slave3: starting regionserver, logging to /usr/local/hbase/bin/../logs/hbase-grid-regionserver-slave3.out
  6. grid@master1:~$ jps
  7. 1719 QuorumPeerMain
  8. 4069 HMaster
  9. 1473 SecondaryNameNode
  10. 1556 JobTracker
  11. 1283 NameNode
  12. 4244 Jps

请使用浏览器的分享功能分享到微信等