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author-rank jsensharma author-rank
Master Mentor

Created ‎01-24-2017 12:26 PM

@Punit kumar

Regarding your latest error:

java.io.IOException: Incompatible clusterIDs in 
/mnt/disk1/hadoop/hdfs/data: namenode clusterID = 
CID-297a140f-7cd6-4c73-afc8-bd0a7d01c0ee; datanode clusterID = 
CID-7591e6bd-ce9b-4b14-910c-c9603892a0f1 at

Looks like your VERSION file has different cluster IDs present in NameNode and DataNode that need to be correct. So please check.

cat <dfs.namenode.name.dir>/current/VERSION
cat <dfs.datanode.data.dir>/current/VERSION

Hence Copy the clusterID from nematode and put it in the VERSION file of datanode and then try again.

Please refer to: http://www.dedunu.info/2015/05/how-to-fix-incompatible-clusterids-in.html

.

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