Cluster is unhealthy or malformed

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Problem

The nodes cannot authenticate with each other, there is a problem with a cluster process or component, or a sensor or broker is not connected.

Reason

The following are probable reasons for the problem:

  • The authentication key hash is not the same on all nodes.

  • The broker role is disabled.

  • Cluster processes are unhealthy or not running.

  • Guest images are not installed on the nodes.

Action

To correct the problem:

  • Use the show mvx node status full command on a node to determine the specific issue and view a list of connected sensors, hybrid appliances, and brokers.

  • If the Key Hash value is not the same on all nodes, remove the nodes from the cluster and then create the cluster again.

  • If the node should be a broker, but the broker role is disabled, use the cmc mvx cluster <cluster name> broker <node name> enable command in the Central Management CLI.

  • If guest images are not installed, install them.

  • If the Web services API (WSAPI) process is not running, use the wsapi enable command in the Virtual Execution (node) CLI.