diff options
Diffstat (limited to '_build/static/archives/extend/2013-September/000241.html')
| -rw-r--r-- | _build/static/archives/extend/2013-September/000241.html | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/_build/static/archives/extend/2013-September/000241.html b/_build/static/archives/extend/2013-September/000241.html new file mode 100644 index 00000000..da555d9a --- /dev/null +++ b/_build/static/archives/extend/2013-September/000241.html @@ -0,0 +1,163 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<HTML> + <HEAD> + <TITLE> [99s-extend] timeouts and slow clients in cowboy loop handler + </TITLE> + <LINK REL="Index" HREF="index.html" > + <LINK REL="made" HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20timeouts%20and%20slow%20clients%20in%20cowboy%20loop%20handler&In-Reply-To=%3CCA%2BeMAwbGgYLp0W2esA204iZ0sumV2dBBN6ppbqD29ZKow%2Bts3A%40mail.gmail.com%3E"> + <META NAME="robots" CONTENT="index,nofollow"> + <style type="text/css"> + pre { + white-space: pre-wrap; /* css-2.1, curent FF, Opera, Safari */ + } + </style> + <META http-equiv="Content-Type" content="text/html; charset=us-ascii"> + <LINK REL="Previous" HREF="000240.html"> + <LINK REL="Next" HREF="000242.html"> + </HEAD> + <BODY BGCOLOR="#ffffff"> + <H1>[99s-extend] timeouts and slow clients in cowboy loop handler</H1> + <B>akonsu</B> + <A HREF="mailto:extend%40lists.ninenines.eu?Subject=Re%3A%20%5B99s-extend%5D%20timeouts%20and%20slow%20clients%20in%20cowboy%20loop%20handler&In-Reply-To=%3CCA%2BeMAwbGgYLp0W2esA204iZ0sumV2dBBN6ppbqD29ZKow%2Bts3A%40mail.gmail.com%3E" + TITLE="[99s-extend] timeouts and slow clients in cowboy loop handler">akonsu at gmail.com + </A><BR> + <I>Fri Sep 20 20:59:46 CEST 2013</I> + <P><UL> + <LI>Previous message: <A HREF="000240.html">[99s-extend] timeouts and slow clients in cowboy loop handler +</A></li> + <LI>Next message: <A HREF="000242.html">[99s-extend] timeouts and slow clients in cowboy loop handler +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#241">[ date ]</a> + <a href="thread.html#241">[ thread ]</a> + <a href="subject.html#241">[ subject ]</a> + <a href="author.html#241">[ author ]</a> + </LI> + </UL> + <HR> +<!--beginarticle--> +<PRE>Understand about chunks being synchronous. that helps me tremendously to +understand how it works. + +would you give me a sketchy example of how to use send_after in a loop +handler? (sorry I am new to erlang) + +Konstantin + + +2013/9/20 Loïc Hoguin <<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A>> + +><i> chunk only returns when the client has received the chunk, so the +</I>><i> timestamps solution should work. +</I>><i> +</I>><i> As for the timeout, you can simply use erlang:send_after or something like +</I>><i> usual and the message will arrive in info/3. +</I>><i> +</I>><i> +</I>><i> On 09/20/2013 08:54 PM, akonsu wrote: +</I>><i> +</I>>><i> thanks! +</I>>><i> +</I>>><i> how to implement timeout callback manually? if I had receive then I +</I>>><i> would just use timeout clause there, but with the handler I do not know... +</I>>><i> +</I>>><i> I have doubts about validity of my question on the erlang list. I later +</I>>><i> realised that there is no problem receiving messages in my handler from +</I>>><i> my upstream process, I can do it fast enough and shove everything to the +</I>>><i> response. my real problem is to determine if the http client is reading +</I>>><i> fast enough from the response... +</I>>><i> +</I>>><i> +</I>>><i> 2013/9/20 Loïc Hoguin <<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A> <mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">essen at ninenines.eu</A>>> +</I>>><i> +</I>>><i> +</I>>><i> Loop handlers close after a while regardless of what you send, it +</I>>><i> only checks what the client sends. The best way for you would be to +</I>>><i> disable that timeout and handle it manually. +</I>>><i> +</I>>><i> As for the second question, I'm still reading the thread on +</I>>><i> erlang-questions but I've seen some good ideas about timestamps so +</I>>><i> far. +</I>>><i> +</I>>><i> +</I>>><i> On 09/20/2013 08:47 PM, akonsu wrote: +</I>>><i> +</I>>><i> Hi, +</I>>><i> +</I>>><i> I am using loop handler and I stream from it: +</I>>><i> +</I>>><i> info({stream, Part}, Req, S) -> +</I>>><i> ok = cowboy_req:chunk(Part, Req), +</I>>><i> {loop, Req, S, hibernate}; +</I>>><i> +</I>>><i> I have two questions: +</I>>><i> +</I>>><i> 1. on timeouts cowboy sends 204 No Content. In my case it is not +</I>>><i> the +</I>>><i> right response because I may have already sent some data. Is +</I>>><i> there a way +</I>>><i> to send a custom response? +</I>>><i> +</I>>><i> 2. how to check if the client is too slow and is not reading the +</I>>><i> response stream fast enough? If this happens, then I need to +</I>>><i> disconnect. +</I>>><i> +</I>>><i> I can live without 1. but I need to figure out 2. Please help. +</I>>><i> +</I>>><i> thank you! +</I>>><i> Konstantin +</I>>><i> +</I>>><i> +</I>>><i> +</I>>><i> ______________________________**___________________ +</I>>><i> Extend mailing list +</I>>><i> <A HREF="https://lists.ninenines.eu/listinfo/extend">Extend at lists.ninenines.eu</A> <mailto:<A HREF="https://lists.ninenines.eu/listinfo/extend">Extend at lists.</A>**ninenines.eu<<A HREF="https://lists.ninenines.eu/listinfo/extend">Extend at lists.ninenines.eu</A>> +</I>>><i> > +</I>>><i> <A HREF="http://lists.ninenines.eu:81/_**_listinfo/extend<http://lists.ninenines.eu:81/__listinfo/extend">http://lists.ninenines.eu:81/_**_listinfo/extend<http://lists.ninenines.eu:81/__listinfo/extend</A>> +</I>>><i> +</I>>><i> <<A HREF="http://lists.ninenines.eu:81/**listinfo/extend<http://lists.ninenines.eu:81/listinfo/extend">http://lists.ninenines.eu:81/**listinfo/extend<http://lists.ninenines.eu:81/listinfo/extend</A>> +</I>>><i> > +</I>>><i> +</I>>><i> +</I>>><i> +</I>>><i> -- +</I>>><i> Loďc Hoguin +</I>>><i> Erlang Cowboy +</I>>><i> Nine Nines +</I>>><i> <A HREF="http://ninenines.eu">http://ninenines.eu</A> +</I>>><i> +</I>>><i> +</I>>><i> +</I>><i> +</I>><i> -- +</I>><i> Loïc Hoguin +</I>><i> +</I>><i> Erlang Cowboy +</I>><i> Nine Nines +</I>><i> <A HREF="http://ninenines.eu">http://ninenines.eu</A> +</I>><i> +</I>-------------- next part -------------- +An HTML attachment was scrubbed... +URL: <<A HREF="http://lists.ninenines.eu/archives/extend/attachments/20130920/4c005881/attachment.html">http://lists.ninenines.eu/archives/extend/attachments/20130920/4c005881/attachment.html</A>> +</PRE> + +<!--endarticle--> + <HR> + <P><UL> + <!--threads--> + <LI>Previous message: <A HREF="000240.html">[99s-extend] timeouts and slow clients in cowboy loop handler +</A></li> + <LI>Next message: <A HREF="000242.html">[99s-extend] timeouts and slow clients in cowboy loop handler +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#241">[ date ]</a> + <a href="thread.html#241">[ thread ]</a> + <a href="subject.html#241">[ subject ]</a> + <a href="author.html#241">[ author ]</a> + </LI> + </UL> + +<hr> +<a href="https://lists.ninenines.eu/listinfo/extend">More information about the Extend +mailing list</a><br> +</body></html> |