CSP Gateway Configuration Guide - InterSystems Documentation

Web Servers for Hewlett-Packard (HP) OpenVMS
/PROCESS_NAME=CSPNSD CSPNSD
If this process starts successfully, the NSD's startup banner is written to the file: CSPNSD.LOG.
Use the following procedure to stop the NSD:
1. Change to the NSD's home directory:
$ SET DEF APACHE$ROOT:[CSP]
2. Stop the NSD using the command:
$ MCR APACHE$ROOT:[CSP]CSPNSD.EXE STOP
This command closes down the NSD in an orderly manner – it gracefully terminates all open connections to Caché and
releases all its system resources before terminating. Do not use a plain stop command to terminate the NSD.
All errors are reported in the Event Log (CSP.LOG). OpenVMS System Errors are reported in CSPNSD.LOG. These files
are created and maintained in the NSD’s home directory. The configuration file CSP.INI also resides in this directory.
6.2.1 Starting the NSD on Alternative TCP port
By default, the NSD listens for incoming requests on TCP port 7038. You can override this by creating and specifying
alternative parameters in the CSPNSD.INI file. The format of this file is as follows and must be installed in the NSDs home
directory.
[SYSTEM]
Ip_Address=127.0.0.1
TCP_Port=7038
It is necessary to communicate the value of the following parameters to the Apache modules so that they know how to
access the NSD. To do this, set the following environment variables in the Apache configuration to indicate the address
and port of the target NSD installation.
CSP_NSD_NAME — This is the IP address of the NSD. Only use this parameter if the NSD is operating on a remote computer.
CSP_NSD_PORT — This is the TCP port of the NSD.
Example 1:
Distribute the load for two Apache virtual hosts (say, 123.123.1.1 and 123.123.1.2) between two independent NSD installations
(listening on TCP port 7038 and 7039).
Add the following directives to the Apache configuration (HTTPD.CONF):
ServerName 123.123.1.1
SetEnv MGW_NSD_PORT 7038
ServerName 123.123.1.2
SetEnv MGW_NSD_PORT 7039
Example 2:
Distribute the load for two CSP applications (say, /csp1 and /csp2) between two independent NSD installations (listening
on TCP port 7038 and 7039).
1. Add the following directives to the Apache configuration (HTTPD.CONF):
SetEnv MGW_NSD_PORT 7038
SetEnv MGW_NSD_PORT 7039
130 CSP Gateway Configuration Guide