New Contributor
Posts: 2
Registered: ‎04-20-2016

Datanode is not connected to the Namenode cloudera

I want to acces cloudera from a distant machine via Talend for big data. In order to do that i changed the ip of the host in cloudera by editing the file /etc/hosts and /etc/sysconfig/network. I can acces cloudera from Talend. However the problem is that my datanode and Namenode seems to be not connected. When i check the log details of my Datanode i get the following errors :


Block pool BP-1183376682- (Datanode Uuid null) service to quickstart.cloudera/ beginning handshake with NN

Initialization failed for Block pool BP-1183376682- (Datanode Uuid null) service to quickstart.cloudera/ Datanode denied communication with namenode because the host is not in the include-list: DatanodeRegistration(, datanodeUuid=5802ab81-2c28-4beb-b155-cac31567d23a, infoPort=50075, ipcPort=50020, storageInfo=lv=-56;cid=CID-83500942-6c65-4ecd-a0c2-a448be86bcb0;nsid=975591446;c=0)


the datanode still uses the wrong ip adress ( ) even though i made the modifications in core-site.xml, hdfs-site.xml and mapred-site.xml by editing the previous ip adress by the new one.

I followed the steps given in this tutorial to do so :


How can i fix this error ?

Subscribe to the Talend Channel! Most of the virtual machines available through Hadoop distribution vendors are made to test and try Hadoop inside the virtual machine (VM). In this video, you will learn how to set the Cloudera CDH 4.4 VM to allow outside connections as well as help to leverage ...