Mailman 3 March 2008 - Twisted

[Twisted-Python] Perspective Broker vs AMP
by Simon Pickles March 31, 2008

March 31, 2008

Hi, You may have seen my recent posts about data comms across nodes of server network. Phil kindly pointed me towards PB and AMP which, after some fiddling both look viable. However, I do have one question: If clients can request remote data from the server, is the reverse possible? As I understand PB, a client can get the root object of a PBServerFactory, thru which it can call methods with the 'remote_' prefix. I'm not clear how this can work in the other direction. As for AMP, this … [View More]

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Re: [Twisted-Python] Perspective Broker vs AMP
by Andreas Kostyrka March 31, 2008

March 31, 2008

Well, the client nodes can also be servers. Alternativly, it's Twisted, so you let your node call in for "work", and wait till you have work for the node before returning from the method call. (Hint return a defered, store it in a dictionary (nodeid => defered), and when you need node X to do work for you, nodeid_defered_dict[nodeX].callback("do this work please", id)) Andreas Am Montag, den 31.03.2008, 09:00 +0100 schrieb Simon Pickles: > Hi, > > You may have seen my recent … [View More]

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[Twisted-Python] disable twisted.web logging
by Pavel March 30, 2008

March 30, 2008

Hi all, is there any way to disable twisted.web logging? Or at least control it somehow, e.g. filter and log only necessary entries. Also, is there any way to make http requests be logged into separate file? Thanks in advance. -- Good luck, Pavel Bastov

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com March 30, 2008

March 30, 2008

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[Twisted-Python] Server Components
by Simon Pickles March 30, 2008

March 30, 2008

Midway thru my server dev, I am seeing the light... well, a light anyway. Its a stackless python server and not too bad, running on Ubuntu Linux. Stackless Python is great, but single threaded (I DO do my DB lookups and network comms in other threads). I figure its GOT to be more concurrent, if I'm looking to use future architecture. So I planned to rewrite the server into modules, each a separate app. I guess this is a virtualisation process. Labour could be subdivided spatially, or by … [View More]

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[Twisted-Python] A reminder of a useful report
by glyph＠divmod.com March 29, 2008

March 29, 2008

Just a reminder for those of you who might have some free time this weekend. (I probably don't, so this reminder is entirely hypocritical...) There's a report in Trac which provides a list of tickets to review in the order that reviewers should consider them in: http://twistedmatrix.com/trac/report/15 A few of these haven't been looked at in 3 months. If you're not familiar with the review process but you'd like to contribute to Twisted by reviewing tickets - well, this is a great … [View More]

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[Twisted-Python] How to improve response time of twisted.web?
by Pavel March 29, 2008

March 29, 2008

Hi all, I decided to benchmark my web server written in twisted against apache. I added just one resource to my twisted web server that reads a file and returns it to client. Then, I created a virtual host in Apache and put the same (html) file to the web root. I issued the following command for both servers: # http_load -parallel 100 seconds 5 url First time the url contained the path to Apache document, second time -- to twisted web. Here is the result of the benchmark. My web server … [View More]

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[Twisted-Python] Twisted/Kamaelia integration in GSOC ?
by Michael March 28, 2008

March 28, 2008

Hi, This is just a note to say that it would be really interesting to see someone making it easier to use Kamaelia from Twisted and/or vice versa as part of summer of code. Whilst we can use Twisted by putting in a seperate process or thread, that's rather more coarse grained than I'd like it to be. Similarly, if people want to use Kamaelia from Twisted you can put kamaelia a thread and access it using the likefile[1] interface, but it'd be nice to make this sort of thing more idiomatic … [View More]

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[Twisted-Python] How can I run code when the protocol is done being built?
by Gabriel Rossetti March 28, 2008

March 28, 2008

Hello, I need to use the factory ref in a protocol instance at the begining of the protocol instance's life. Normally I do my initializing code in __init__(), but I can't access self.factory from inside __init__(), since it's only assigned after the protocol has ben built by the factory. A hack is to use reactor.callLater(), but I don't like hacks, and it's messing up my unit tests (using trial), I get REACTOR UNCLEAN errors. Is there a cleaner way to run initialization code, in a … [View More]

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[Twisted-Python] Serial port communication
by Daniel Marfil March 28, 2008

March 28, 2008

Hi, I'm trying to send some commands to a modem connected to the serial port, in a sequential way. I can send the first command to the modem but I must wait for the whole response before sending the next command. I haven't got much experience with Twisted so I'm not sure about the best protocol I can use for this. At this moment I'm trying with SerialPort (from twisted.internet.serialport) as my factory, and LineReceiver (from twisted.protocols.basic) as its protocol. I can write to the … [View More]

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