Datanode not starts correctly

You can do the following method,

copy to clipboard datanode clusterID for your example, CID-8bf63244-0510-4db6-a949-8f74b50f2be9

and run following command under HADOOP_HOME/bin directory

./hdfs namenode -format -clusterId CID-8bf63244-0510-4db6-a949-8f74b50f2be9

then this code formatted the namenode with datanode cluster ids.

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