In varnish 3, I did the following to log odd errors to syslog:
std.syslog((3*8)+5, "returning backend error page. client.ip is " +
client.ip +
" req.xid is " + req.xid +
" req.url is " + req.url +
" original url is " + req.http.originalurl +
" beresp.status is " + beresp.status);
In varnish 4, vcl_backend_error does not have access to client.* or req.*,
making this problematic at best.
The 'go to' solution seems to be an external log monitor... a daemonized
version of varnishlog which filters out stuff like this. Certainly doable,
but this feels like a poor solution, compared with the above.
Am I missing something?
-Jason
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