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From charan raj <charanraj...@gmail.com>
Subject Root Region is not online
Date Fri, 01 Mar 2013 08:33:07 GMT
hi,

 I am currently using a 5 node cluster configured in amazon.The namenode
and secondary namenode or in different node. I have shut down the cluster
in amazon instance directly without shuting down hbase and hadoop,But when
i started the amazon instance, here is the problem am facing with hbase am
not able to scan the data present in hbase table and below are the error
that is generated with hbck,masterlog and zookeeper log.

         hbase/logs masterlog
===================
 error while splitting logs in
[hdfs://servername:9000/hbase/.logs/servername,60020,1358343873518-splitting,
hdfs://servername:9000/hbase/.logs/servername,60020,1361892283588-splitting,
hdfs://servername:9000/hbase/.logs/servername,60020,1358343874434-splitting,
hdfs://servername:9000/hbase/.logs/servername,60020,1361892283510-splitting,
hdfs://servername:9000/hbase/.logs/servername,60020,1358343873830-splitting,
hdfs://servername:9000/hbase/.logs/servername,60020,1361892283643-splitting]
installed = 1 but only 0 done
 Task = installed = 1 done = 0 error = 1
        at
org.apache.hadoop.hbase.master.SplitLogManager.splitLogDistributed(SplitLogManager.java:268)
        at
org.apache.hadoop.hbase.master.MasterFileSystem.splitLog(MasterFileSystem.java:279)
        at
org.apache.hadoop.hbase.master.MasterFileSystem.splitLogAfterStartup(MasterFileSystem.java:219)
        at
org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:497)
        at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:336)
        at java.lang.Thread.run(Thread.java:722)

hbase/logs zookeeper log
=========================
2013-03-01 07:12:53,000 INFO
org.apache.zookeeper.server.PrepRequestProcessor: Got user-level
KeeperException when processing sessionid:0x13d214fae680005 type:setData
cxid:0x1c6f zxid:0x49ac txntype:-1 reqpath:n/a Error
Path:/hbase/splitlog/hdfs%3A%2F%2Fservername%3A9000%2Fhbase%2F.logs%2Fservername%2C60020%2C1358343873830-splitting%2Fservername%252C60020%252C1358343873830.1360329708655
Error:KeeperErrorCode = BadVersion for
/hbase/splitlog/hdfs%3A%2F%2Fservername%3A9000%2Fhbase%2F.logs%2Fservername%2C60020%2C1358343873830-splitting%2Fservername%252C60020%252C1358343873830.1360329708655

bin/hbase hbck error
===================
Version: 0.92.1
13/03/01 07:15:17 DEBUG
client.HConnectionManager$HConnectionImplementation: Lookedup root region
location,
connection=org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@58c9defc;
serverName=
ERROR: Root Region or some of its attributes are null.
ERROR: Encountered fatal error. Exiting...



I tried hbck -fix and other options which will repair meta but it is of no
use,can any one help me in solving this issue...........

Regards,
Charan

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