Namenode works fine but datanode just cannot connect to it

Hearen / HadoopInitializer

Using pure shell to configure hadoop 2.7.1 environment in CentOS 7.1 cluster

GNU General Public License v3.0

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Namenode works fine but datanode just cannot connect to it #8

Closed Hearen closed 8 years ago

Hearen commented 8 years ago

checking the logs in each /home/hadoop/hadoop/logs and in datanode host you will can find out that the datanode just cannot connect to namenode; check the iptables, firewall and selinux