i checked the datanode log file and this is the error:
FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in secureMain
java.io.IOException: Incorrect configuration: namenode address dfs.namenode.servicerpc-address or dfs.namenode.rpc-address is not configured
i set dfs.namenode.rpc-address in hdfs-site.xml and i dont undrestand what the problem is. does anybody know how could i fix this problem. tnx
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