When a cluster is defined, it is possible to set its type. The available cluster types are described below:

  • Default: When type of cluster is set to Default, the check is performed against the cluster using one of the following three available health checks:

    • None: No health check is performed. Therefore, the machine always appears to be up.

    • ICMP Ping: The health check is performed by pinging against the cluster IP address.

    • TCP Connect: The health check is performed by connecting to the cluster IP address on the port specified.

Note: The frequency of the health checks can be specified in the Miscellaneous Params screen.
  • Local LM: When Local LM is selected as the Type, the Checkers field is automatically set to Not Needed. This is because the health check is not necessary because the cluster is the local machine.
  • Remote LM: The health check for this type of cluster is Implicit (it is performed by SSH).