Troubleshooting Cloudbreak
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Connection timeout when ports are not open

In the cluster installation wizard, you must specify on which node you want to run the Ambari server. Cloudbreak communicates with this node to orchestrate the installation. A common reason for connection timeout is security group misconfiguration. Cloudbreak allows configuring different security groups for the different instance groups; however, there are certain requirements for the Ambari server node. For more information, refer to Default cluster security group documentation.