Make the client channel definition table (CCDT) available
to client applications by copying or sharing it, then specify its
location and name on the client computer.
Before you begin
You have defined the client-connection channels you need.
On z/OS, you have created a CCDT. On other platforms, the CCDT
is automatically created and updated.
About this task
For a client application to use the client channel definition
table (CCDT), you must make the CCDT available to it and specify its
location and name
Procedure
- Make the CCDT available to the client applications in one
of three ways:
- Optional: Copy the CCDT to the client computer.
- Optional: Copy the CCDT to a location shared
by more than one client.
- Optional: Leave the CCDT on the server but
make it shareable by the client.
Whichever location you choose for the CCDT, the location must
be secure to prevent unauthorized changes to the channels.
- On the client, specify the location and name of the file
containing the CCDT in one of three ways:
- Optional: Use the CHANNELS stanza of the
client configuration file. For more information, see CHANNELS stanza of the client configuration file.
- Optional: Use the environment variables
MQCHLLIB and MQCHLTAB.
For example, you can set the
environment variables by typing:
where MQ_INSTALLATION_PATH
represents
the high-level directory in which WebSphere MQ is installed.
- Optional: On Windows only, use the setmqscp control command to publish the client-connection
channel definitions in Active Directory
If the MQSERVER environment variable is set, a WebSphere® MQ client uses the client-connection channel definition specified
by MQSERVER in preference to any definitions in the client channel
definition table.