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Edit Group Management Service
Use the Group Management Service page to change GMS settings.
The Group Management Service (GMS) is an in-process service that provides cluster monitoring,
cluster membership, and group communication services. The GMS is built atop a
configurable stack of group membership discovery and health monitoring protocols. The GMS performs
the following functions:
Notifies registered modules in a GlassFish Server instance when one or more member instances are added to or removed from a cluster, or are suspected or confirmed to have failed.
Provides the ability to send and receive messages between a group of processes.
The Group Management Service page contains the following options.
- Load Defaults
Button to restore the default values of all the settings.
- Maximum Missed Heartbeats
The number of monitoring attempts after which a server instance failure is suspected. The default is 3.
- Heartbeat Frequency
The period of time between monitoring attempts. The default is 2000 milliseconds.
- Group Discovery Timeout
The amount of time that the GMS waits for discovery of other cluster members. The default is 5000 milliseconds.
- Failure Verification Wait Time
The amount of time after which a suspected failure is marked as verified. The default is 1500 milliseconds.
- Additional Properties
Additional properties for the Group Management Service.
The GlassFish Server does not define any additional GMS properties.
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