This page describes an older version of the product. The latest stable version is 16.4.

Port usage Control

XAP space and client components open different ports in various situations. The following list describes the different ports used by XAP and how these can be modified:

See also:
Learn how to set XAP over a firewall.
Service Description Configuration Property Default value
LRMI listening port Used with client-space and space-space communication. System property. variable , random
RMI registry listening port Used as an alternative directory service. com.gigaspaces.system.registryPort System property 10098 and above.
RMI registry Retries Used as an alternative directory service. com.gigaspaces.system.registryRetries System property Default is 20.
Webster listening port Internal web service used as part of the application deployment process. com.gigaspaces.start.httpPort System property 9813
  • When starting a space and providing the port as part of the URL - i.e. java://localhost:PORT/container/space - the specified port will be used both for the RMI registry listener and also for the container to register into the RMI registry.
  • The Jini Lookup Service uses unicast and multicast announcements and requests.
  • The multicast discovery protocol uses ports 4174.
  • You can completely disable multicast announcement traffic. Refer to the Lookup Service Configuration or Setting XAP Over Firewall sections for more details.
  • When running a clustered space using replication via multicast, additional ports are used.