How to fix Varnish 503 error

[phclausx]

After moving one of my sites over here a few days ago, I noticed that dreadful guru meditation thing while doing some post-testing. All was 200, except for the search interface. Long story short, I solved the issue by adding a 1024 lorem ipsum comment to artificially bloat the file size from 470 to about 1500 bytes. Result: Varnish 503 error gone. For those, who care to read a little more: I just published a brief summary at http://phclaus.eu.org/system-stuff/how-to-fix-varnish-503-error/

HTH, regards.