Re: [RFC] Timeouts on HTTP requests

From: Nick Hengeveld <>
Date: 2005-10-20 01:34:05
On Wed, Oct 19, 2005 at 01:09:10PM +0200, Petr Baudis wrote:

> > On the other hand, having _no_ activity for say 30 seconds would
> > indicate a dead link on either modem or localnet.
> I agree that we should definitely use timeout instead of some low speed
> limit - can't curl do that?

Curl lets you set timeouts for the connect and the overall request, but
neither of these are related to activity.  In our case, some of the files
we transfer can be quite large and need to transfer over a 56K modem line.
As long as data is moving, we're happy; but we need the transfer to abort
if the connection drops and data stops moving completely.

> But 30 seconds is too little (on bad links, I've seen TCP connections
> stalled for much longer), I would use at least 120 seconds. Or perhaps
> 30 seconds, but retry three times or so.

I've been testing with low speed limit of 1 and low speed time of 300 - if
data transfer stays below 1 byte/sec for 5 minutes, curl aborts the transfer.

I like Junio's suggestion regarding defaults though, don't compile them in
but let default config templates take care of it.

For a successful technology, reality must take precedence over public
relations, for nature cannot be fooled.
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Received on Thu Oct 20 01:35:06 2005

This archive was generated by hypermail 2.1.8 : 2005-10-20 01:35:09 EST