To Configure the Group Management Service

The Group Management Service (GMS) is an in-process service that provides cluster monitoring, cluster membership, and group communication services. The GMS performs the following functions:

  1. In the navigation tree, expand the Configuration node.
  2. Select the configuration for the cluster that you are changing.
  3. Under the configuration's node, select the Group Management Service node.

    The Group Management Service page opens.

  4. In the Maximum Missed Heartbeats field, enter the maximum number of monitoring attempts before the GMS confirms that a failure is suspected.

    The default is 3.

  5. In the Heartbeat Frequency field, enter the period of time between monitoring attempts.

    The default is 2000 milliseconds.

  6. In the Group Discovery Timeout field, enter the amount of time that the GMS waits for discovery of other cluster members.

    The default is 5000 milliseconds.

  7. In the Failure Verification Wait Time field, enter the amount of time after which a suspected failure is marked as verified.

    The default is 1500 milliseconds.

  8. To restore default values, click the Load Defaults button.
  9. (Optional) In the Additional Properties section, specify additional properties.

    The GlassFish Server does not define any additional GMS properties.

  10. Click Save.
See Also
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