varnish param.set resets to previous value after service restart

Question

I'm trying to fine tune varnish (4.0.4) with varnishadm (on RHEL).

I set the values with param.set, do param.show & everything looks ok.

But after I restart the varnish service the params are back to their previous values.

Is there a way to somehow save those & make them default (without somehow passing them to varnish every time after the service restart)?

Thanks.

Answer 1

Of course. Open up /etc/varnish/varnish.params and add your params to DAEMON_OPTIONS like so:

DAEMON_OPTS="-p cli_buffer=16384 -p another_parameter=value"

By default, the DAEMON_OPTS is commented, so make sure to remove the leading hash #.