Configuring transports

Transports enable the exchange of objects and data between different server processes in your configuration.

About this task

The main transport mechanism is the Object Request Broker (ORB). This mechanism stores cache entries on the Java™ heap. Using the ORB as the transport mechanism is required in the following configuration scenarios:
  • When you are using a system other than x86 64-bit Linux.
  • When you are using container servers that are running in a WebSphere® Application Server environment.
  • When you are using evictor plug-ins or composite indexes.

If you are using eXtremeMemory, a new transport that is called eXtremeIO is used. With eXtremeMemory, cache entries are stored in native memory. Native memory does not go through garbage collection, leading to more constant performance and predicable response times. Objects are serialized into bytes on the container server. For more information, see Configuring IBM eXtremeIO (XIO).