"http first read error: EOF" errors from WordPress backend
mattias at nucleus.be
Fri Mar 31 10:11:24 CEST 2017
> - FetchError http first read error: EOF
> - BackendClose 21 reload_2017-03-21T100643.default
> - Timestamp Beresp: 1490916389.664967 60.000557 60.000114
> - Timestamp Error: 1490916389.664978 60.000567 0.000011
At the risk of repeating myself: try to disable gzip & any wordpress plugins that might be trying to gzip on their own (aka: output buffering in PHP).
To me, this seems like Varnish is waiting for the backend to send more data, because it replied with a certain Content-Length header but sent a few bytes less than it advertised, and Varnish is waiting for those missing bytes.
More information about the varnish-misc