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HDFS >> mail # user >> Incompartible cluserIDS


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Incompartible cluserIDS

I am trying to start up a cluster and in the datanode log on the
NameNode server I get the error:

2013-04-29 15:50:20,988 INFO
org.apache.hadoop.hdfs.server.common.Storage: Lock on
/data/hadoop/dfs/data/in_use.lock acquired by nodename 1406@devUbuntu05
2013-04-29 15:50:20,990 FATAL
org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization failed
for block pool Block pool BP-1306349046-172.16.26.68-1367256199559
(storage id DS-403514403-172.16.26.68-50010-1366406077018) service to
devUbuntu05/172.16.26.68:9000
java.io.IOException: Incompatible clusterIDs in /data/hadoop/dfs/data:
namenode clusterID = CID-23b9f9c7-2c25-411f-8bd2-4d5c9d7c25a1; datanode
clusterID = CID-e3f6b811-c1b4-4778-a31e-14dea8b2cca8
         at
org.apache.hadoop.hdfs.server.datanode.DataStorage.doTransition(DataStorage.java:391)
         at
org.apache.hadoop.hdfs.server.datanode.DataStorage.recoverTransitionRead(DataStorage.java:191)
         at
org.apache.hadoop.hdfs.server.datanode.DataStorage.recoverTransitionRead(DataStorage.java:219)

How do I get around this error? What does the error mean?

Thank you.

Kevin
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB