(Deprecated)WebSphere® eXtreme Scale uses the Object Request
Broker (ORB) to enable communication among processes. No action is
required to use the Object Request Broker (ORB) provided by WebSphere eXtreme Scale or WebSphere Application Server for your WebSphere eXtreme Scale servers. Little effort
is required to use the same ORBs for your WebSphere eXtreme Scale clients. If instead
you must use a custom ORB, the ORB supplied with the IBM® SDK is a good choice, although
you must configure the ORB. ORBs from other vendors can be used, also
with configuration.
Before you begin

Deprecated: The Object Request Broker (ORB) is deprecated. If you
were not using the ORB in a previous release, use IBM eXtremeIO (XIO)
for your transport mechanism. If you are using the ORB, consider migrating
your configuration to use XIO.
Determine if you
are using the ORB provided with WebSphere eXtreme Scale or WebSphere Application Server, the ORB provided with
the IBM SDK, or an external
vendor ORB.
Figure 1. Choosing an ORB
You can make separate decisions for
the WebSphere eXtreme Scale server processes
and WebSphere eXtreme Scale client processes.
While eXtreme Scale supports
developer
kits from most vendors, it is recommended you use the ORB that is
supplied with eXtreme Scale for
both your server and client processes. eXtreme Scale does not support
the ORB that is supplied with the Oracle Java™ Development
Kit (JDK).
About this task
Become familiar with the configuration that is required
to use the ORB of your choice.
- Case 1: Default ORB
- For your WebSphere eXtreme Scale server
processes, no configuration is required to use the ORB provided with WebSphere eXtreme Scale or WebSphere Application Server.
- For your WebSphere eXtreme Scale client
processes, minimal classpath configuration is required to use the
ORB provided with WebSphere eXtreme Scale or WebSphere Application Server.
- Case 2: Custom ORB (IBM)
- To configure your WebSphere eXtreme Scale client
processes to use the ORB provided with the IBM SDK, see the instructions
later in this topic. You can use the IBM ORB
whether you are using the IBM SDK or
another development kit. You can use IBM SDK Version 6 or later.
- Case 3: Custom ORB (supplied by an external vendor)
- Using a vendor ORB for your WebSphere eXtreme Scale client processes is
the least tested option. Any problems that you encounter when you
use ORBs from independent software vendors must be reproducible with
the IBM ORB and compatible JRE
before you contact support.
The ORB supplied with the Oracle Java Development Kit (JDK) is not
supported.
Procedure