On 2013-11-08, Skip Montanaro <s...@pobox.com> wrote: >> What I really need is an HTTP header or meta-tag or something that I >> can use to tell clients to limit themselves to a single connection. >> >> I haven't been able to find such a thing, but I'm hoping I've >> overlooked something... > > That will only go so far. Suppose you tell web browsers "no more than > 3 connections", then get hit by 30 nearly simultaneous, but separate > clients.
In practice, that doesn't happen. These servers are small, embedded devices on internal networks. If it does happen, then those clients are all going to have to queue up and wait. > Then you still wind up allowing up to 90 connections. The web server is single threaded. It only handles one connection at a time, and I think the TCP socket only queues up a couple. But that doesn't stop browsers from trying to open 8-10 https connections at a time (which then eventually get handled serially). > There should be a parameter in your web server's config file to limit > the number of simultaneously active threads or processes. The server is single-threaded by design, so it is not capable of handling more than one connection at a time. The connections are never actually in "parallel" except in the imagination of the browser writers. > It's been a long time for me, and you don't mention what brand of > server you are running, but ISTR that Apache has/had such parameters. FWIW, it's an old version of the GoAhead web server: http://embedthis.com/products/goahead/ > (Also, while this is off-topic for comp.lang.python, most people here > are a helpful bunch, and recognizing that it is off-topic, will want > to reply off-list. You don't give them that option with > "invalid@invalid.invalid" as an email address.) Yea, trying to hide e-mail addresses from automated spammers is probably futile these days. I'll have to dig into my slrn config file. -- Grant Edwards grant.b.edwards Yow! Somewhere in DOWNTOWN at BURBANK a prostitute is gmail.com OVERCOOKING a LAMB CHOP!! -- https://mail.python.org/mailman/listinfo/python-list
