Hi everyone,
I am new to Hadoop. When I run start-all.sh in pseudo distributed model, I got this ERROE: org.apache.hadoop.dfs.DataNode: java.io.IOException: Inconpatible namespaceIDs in /tmp/hadoop-zhang/dfs/data: namenode namespceID=13510389749;datanode namespaceID = 222833940. So I cannot start the datanode. I am sure it is something stupid I did or did not do, I just can't figure it out. I really appreciate it if somebody could help me out. Thanks a lot. Sincerely, Boyu Zhang
