Setting up prerequisites for all nodes


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Originally published at: https://kaizen.itversity.com/topic/setting-up-prerequisites-for-all-nodes/

All these following prerequisites need to be executed on all the nodes of the cluster. This section explains the tasks you must perform before deploying CDH on a cluster. Define hostnames Passwordless ssh must be set up from master to slaves Disable SELinux Setup NTP Disable firewall or iptables and ip6tables For Hadoop users, we…