Re: Feature request

Hi Ray and all,

As a ringing endorsement of the addition of this or something like it to
the official Squid, I'll mention that we've begun doing demo deployments
in Africa through a reseller, and every location has a satellite
connected proxy running on Windows machines...We have been consistently
hitting these connection refused errors on about 10-15% of requests, and
I hadn't been able to figure out why. May not be the same problem, but
its worth a try.

So, Ray, I'd be happy to give the patch some testing. But, I'd be leery
of the nieghbors.c usleep...perhaps it should be configurable, as well,
or made into an async operation. I'm sure an 'always on' blocking call
like that would never get past Duane. He's a peer performance nazi.

Ray Cole wrote:

> I use squid on my Linux box to assist in communicating to a DirecWay
> proxy server that resides on my Windows machine. It works great,
> except for a little problem with Windoze. I tend to get a large
> number of 'connection refused' errors when connecting to the proxy on
> my Windoze machine. This is caused by the fact that Windoze doesn't
> allow much of a backlog when listening for connections. I'm sure
> you're well aware of these type of issues with Windoze.
>
> Fortunately if the connect attempt is retried it tends to work, but
> sometimes requires a bit of a delay. I'm aware that squid retries up
> to 10 times, but it doesn't put any delay in it. So if the machine
> running the squid is considerably faster than its parent cache (which
> it is in my situation) this immediate retry of 10 attempts isn't
> sufficient.
>
> I made a modification to allow a new parent proxy configuration
> option: retry-attempts=x, where x is the number of times to re-attempt
> a connection to the cache. I modified cache_cf.c to support the new
> command, structs.h to add a 'max_attempts' to the __peer structure,
> and finally neighbors.c to use this max_attempts on tcp_up rather than
> PEER_TCP_MAGIC_COUNT (10). 10 remains the default.

-- 
Joe Cooper <joe@swelltech.com>
Web caching appliances and support.
http://www.swelltech.com