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squid-3.1 client POST buffering

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Hello,

I have upgraded to squid-3.1 recently, and found a change of behaviour.
I have been using dansguardian in front of squid.

It appears to be because squid now buffers uploaded POST data slightly
differently.
In versions < 3.1, it would take some data, send it through to the website,
and then ask for some more.
In 3.1 version, it appears to take as much from the client as it can without
waiting for what it has already got to be uploaded to the website.

This means that dansguardian quickly uploads all the data into squid, and
then waits for a reply, which is a long time in coming because squid still
has to upload everything to the website.
And then dansguardian times out on squid after two minutes.


I noticed the following squid configuration option. Perhaps what I need is
a similar thing for buffering data sent from the client.

#  TAG: read_ahead_gap  buffer-size
#       The amount of data the cache will buffer ahead of what has been
#       sent to the client when retrieving an object from another server.
#Default:
# read_ahead_gap 16 KB

Comments welcome!

Graham.



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