Administration Guide › Installing and Uninstalling the Secure Proxy Server › Start the SPS in Single or Multi Process Mode

Start the SPS in Single or Multi Process Mode

The SPS supports single-process and multiple-process modes, which enable the embedded Web Agent to create the Low Level Agent Worker Process (LLAWP) at runtime.

The SPS can be configured to start in a single-process or multiple-process mode. Single-process mode is the default.

The modes operate as follows:

Single-Process Mode

This mode causes the Web Agent to use local resources rather than shared operating system resources offered by the LLAWP to operate. No separate LLAWP processes are started in single-process mode. When multiple virtual hosts run, single-process mode results in an increase in the memory footprint of the SPS Java process.

Note: Single-process mode is supported only for host servers that run as a single server process.

Multiple-Process Mode

This mode causes the LLAWP framework to spawn a process for every virtual host. Because multiple-process mode uses shared memory, the SPS uses shared operating system resources for logging, caching, and monitoring of multiple web server processes.

To set the mode of operation

1. Open the server.conf file in a text editor.
2. Set the singleprocessmode parameter as follows:
   • To use single process mode, keep singleprocessmode set to yes.
   • To use multiple-process mode, change singleprocessmode to no.
3. If you modify the server.conf file, restart SPS.

The SPS mode of operation is set.