Long wait for first byte

samcrawford at gmail.com samcrawford at gmail.com
Fri Oct 8 13:50:14 CEST 2010

Yes, varnish will capture the entire object before sending you any bytes.

I believe changing the rule to "pipe" will alter this behaviour, but obviously this has other implications too (I.e. All future requests on that connection will be piped without being examined).



Sent from my BlackBerry® wireless device

-----Original Message-----
From: Alex Hooper <ahooper at bmjgroup.com>
Sender: varnish-misc-bounces at varnish-cache.org
Date: Fri, 8 Oct 2010 11:58:31 
To: <varnish-misc at projects.linpro.no>
Subject: Long wait for first byte


We have a 128MB zip file behind varnish which, when it has expired from cache or 
when I add magic headers to force a PASS, produces a long delay between request 
and first byte. Is varnish waiting to retrieve the whole object before starting 
to send it to the client? If so, can I modify that behaviour?

Many thanks,

Alex Hooper
Operations Team Leader, BMJ Group, BMA House, London WC1H 9JR
Tel: +44 (0) 20 7383 6049

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