Letsgetdugg

Clearing stale cache by domain You can clear a site’s cache by domain, this is really nifty if you have Varnish in front of multiple sites. You can log into Varnish’s administration console via telnet and execute the following purge command to wipe out the undesired cache. purge req.http.host ~ letsgetdugg.com Monitor Response codes Worried […]

Update 2010-02-19: Seems other people are also affected by the Varnish LINGER crash on OpenSolaris. This does not address the core problem but removes the “fail fast” behavior with no negative side effects. r4576 has been running reliably with the fix below. In varnishd/bin/cache_acceptor.c if (need_linger) setsockopt(sp->fd, SOL_SOCKET, SO_LINGER, &linger, sizeof linger); Remove TCP_assert line […]

I have finally nailed out all our issues surrounding Varnish on Solaris, thanks to the help of sky from #varnish. Apparently Varnish uses a wrapper around connect() to drop stale connections to avoid thread pileups if the back-end ever dies. Setting connect_timeout to 0 will force Varnish to use connect() directly. This should eliminate all […]

Update: Just an update, All the issues with Varnish on Solaris have been fixed with the 2.1.4 release. We have been using Varnish on our Solaris production servers since the release with great stability and performance. A big thanks to the Varnish devs and slink for the eventport fixes. I have dumped varnish as our […]