Running inside a virtual machine (VM)

It is possible, but not recommended for high performance, to run Varnish on virtualised hardware.

OpenVZ

If you are running on 64bit OpenVZ (or Parallels VPS), you must reduce the maximum stack size before starting Varnish. The default allocates to much memory per thread, which will make varnish fail as soon as the number of threads (==traffic) increases.

Reduce the maximum stack size by running:

ulimit -s 256

in the startup script.

Table Of Contents

Previous topic

Edge Side Includes

Next topic

Advanced Backend configuration

This Page