First, <br><br>congrats on a great product. So far in my testing, it has met and exceed my expectations. A fresh change from the squid days :)<br><br>I'm still on the testing phase of my first varnish deployment, and have come up with a few questions.<br>
<br>varnishncsa currently only seems to log on a fix format, %h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-agent}i", while the code and man page mention that the availability of a custom format will be forthcoming, has anyone patched it to add things like bytes served and request time or a custom header? Or can anyone answer if the varnish in memory log has these attributes? <br>
<br>Also, there are hints of clustering support in the wiki. I'm specifically interested in cache sharing between varnish installs in a cluster. ( akin to the Digest feature of Squid, where squid servers constantly share what they are caching with each other ). Is there any initial support for this, or is this planned in the near future?<br>
<br>And lastly, how stable is the backend load balancing? I have dedicated hardware load balancers for my application, and have been debating whether to point the varnish caches to it, or list all backends on varnish. The plusses for listing them in varnish, are of course, having more detailed tests, and retry logic, but just curious what other high traffic sites have done.<br>
<br>Again, thanks for a great project.<br><br><br>-Javier<br>