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Re: httpReadReply: Request not yet fully sent / POST problems?

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At 1133813601s since epoch (12/05/05 09:13:21 -0500 UTC), Mark Elsen wrote:
> > I have users that are complaining of failed uploads, mostly to picture
> > sites (ofoto, shutterfly, snapfish), but also to other sites
> > (facebook.com, myspace, etc).  Checking the cache logs, the only
> > suspicious activity are lines that look like this:
> >
> > (example of a Costco-branded snapfish upload)
> >
> > 2005/12/02 14:09:43| httpReadReply: Request not yet fully sent "POST
> > http://64.147.178.206/uploadimagebasic.suup?authcode=<snip>&
> > HOST_NAME=http://www.costcophotocenter.com";
> >
> 
> Transparant proxy setups may leed to your squid host deciding
> (or getting confused w.r.t.)
> incorrect PMTU value(s).
> 
> Does it work when the user is set to use the proxy directly,
> by using proxy settings in the browser ?

Excellent call; that does fix the issue!  If you don't mind my asking,
where should I begin looking to correct this issue?

The firewall/router that's doing the redirection is an OpenBSD box
running pf, and the squid box is Debian Stable with ip forwarding
turned on to allow the transparent proxying (net.ipv4.ip_forward=1).

I notice that Squid 3 has a setting to address this issue, and it
seems to pertain to my setup (squid is not handling connection
tracking; the oBSD box is).  I'd prefer to stick with a stable
release; is there any corrective action for this under 2.5 (such as
disabling PMTU on the proxy machine entirely)?

Thanks,

Jason

-- 
Jason Healy
http://www.logn.net/


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