I am facing the same exact problem not sure if it is related or not but seems very very close. I am trying to install CDH5 on a single node cluster. .. so everything is supposed to be running on the same host ( cloudera manager, and all other hadoop and spark services), more of a sandbox than anything else, I am running ubuntu 64 bit precise OS. I am using cloudera manager admin to install and and cluster installation step it fails: Installation failed. Failed to receive heartbeat from agent. Ensure that the host's hostname is configured properly. Ensure that port 7182 is accessible on the Cloudera Manager Server (check firewall rules). Ensure that ports 9000 and 9001 are free on the host being added. Check agent logs in /var/log/cloudera-scm-agent/ on the host being added (some of the logs can be found in the installation details). Thanks, Mukul
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