tbnl-devel May 2006

tbnl-devel@common-lisp.net

7 participants
8 discussions

[tbnl-devel] tbnl/mod_lisp memory leak ?
by quasi 30 May '06

30 May '06

Hey, I am using tbnl 0.9.10 and sbcl 0.9.11. I have some functions which generate HTML content using cl-who etc. I have run then through heavy testing and they work fine in the REPL (no memory leakage). As soon as I am calling them via tbnl/mod_lisp the lisp memory usage jumps tremendously. I ran the ab2 benchmark (100 requests with concurrency 1) and the memory usage went from 50Mb to 300Mb+. It then starts swapping. Is this a known problem or am I doing something terribly wrong ? -- quasi Utopia Unlimited!

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[tbnl-devel] Re: TBNL newbie question
by Edi Weitz 25 May '06

25 May '06

Hi! Please use the mailing list. On Thu, 25 May 2006 05:54:19 -0400, "Yarek Kowalik" <yarek.kowalik(a)gmail.com> wrote: > I'm really new to lisp, and definitely new to TBNL. I'm having > trouble getting TBLN respond to Apache, I wonder if you can point me > to where I can get some help. I've been tryhing to figure out how to > make this work for hours, and no luck, and it's getting really late > (3:00 AM). So, maybe you can help me? > > Here is what is happening: > > 1. I setup Apache 2 and it seems to be loading the mod_lisp2.so > module fine, but then Apache it times out (I get 500 error) when > trying to load the tbnl test page. Not sure if TBNL is running OK > (see below), or maybe Apache is misconfigured (unlikely - that seems > easy). Have you added the necessary parts for mod_lisp to the Apache configuration? Note that you can always work in TBNL's "stand-alone" mode to make sure that the problem is not with Apache/mod_lisp. > 2. When I start TBNL, I get the following two errors - does that > matter? > > [1]> (asdf:oos 'asdf:load-op :tbnl-test) > ; loading system definition from /usr/share/common-lisp/systems/tbnl- > test.asd into #<PACKAGE ASDF7345> > ;; Loading file /usr/share/common-lisp/systems/tbnl-test.asd ... > > [...] > > ;; Loading file /var/cache/common-lisp-controller/yarek/clisp/kmrcl/os.fas > ... > ** - Continuable Error > INTERN("PROGRAM-ID"): #<PACKAGE SYSTEM> is locked See below. > If you continue (by typing 'continue'): Ignore the lock and proceed > The following restarts are also available: > RETRY :R1 Retry performing #<ASDF:LOAD-OP NIL #x000333CD05E0> > on #<ASDF:CL-SOURCE-FILE "os" #x000333CCB428>. > ACCEPT :R2 Continue, treating #<ASDF:LOAD-OP NIL > #x000333CD05E0> on #<ASDF:CL-SOURCE-FILE "os" #x000333CCB428> as having been > successful. > ABORT :R3 ABORT > Break 1 KL[2]> continue > > [....] > > ;; Loading file > /var/cache/common-lisp-controller/yarek/clisp/tbnl/test/test.fas ... > *** - OPEN: file > #P"/var/cache/common-lisp-controller/yarek/clisp/tbnl/test/fz.jpg" does not > exist This seems to be a problem with the Debian distribution. > The following restarts are available: > RETRY :R1 Retry performing #<ASDF:LOAD-OP NIL #x000333CBA7A0> > on #<ASDF:CL-SOURCE-FILE "test" #x000333CBC380>. > ACCEPT :R2 Continue, treating #<ASDF:LOAD-OP NIL > #x000333CBA7A0> on #<ASDF:CL-SOURCE-FILE "test" #x000333CBC380> as having > been successful. > ABORT :R3 ABORT > Break 1 TBNL-TEST[3]> accept > 0 errors, 0 warnings > NIL > [4]> (tbnl:start-tbnl) > > 3. After typing "(tbnl:start-tbnl)" I get no clisp prompt - is this > expected, or is it hung? TBNL (or rather KMRCL) does not work with CLISP, see the docs. Try LispWorks, AllegroCL, SBCL, or CMUCL. Cheers, Edi.

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[tbnl-devel] New version 0.9.10
by Edi Weitz 24 May '06

24 May '06

ChangeLog: Version 0.9.10 2006-05-24 Prepare for LW 5.0 release Download: http://weitz.de/files/tbnl.tar.gz

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Re: [tbnl-devel] send-headers and slow page generation
by Edi Weitz 14 May '06

14 May '06

[Please use the mailing list.] On Sun, 14 May 2006 15:16:49 -0400, Yannick Gingras <ygingras(a)ygingras.net> wrote: > I know when I finished to generate the fast content, is there a way > to pack and send a mod_lisp chunk? Something like FINISH-OUTPUT > would be great. I don't think so. You'll have to modify mod_lisp to get what you want. See the function FlushLispBuffSocket. > Otherwise using Hunchentoot is doable. Note that Hunchentoot only works with LispWorks.

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[tbnl-devel] send-headers and slow page generation
by Yannick Gingras 14 May '06

14 May '06

Hi, I'd like to use TBNL for a web application that have a really slow page generation rate. At first I thought that send-headers was the solution: write the page header and navigation before launching the slow content generation and then write the content as it is generated. I made this small example (using cl-who): (defun test-page () (with-html-output (*standard-output* (send-headers) :prologue t :indent t) (:html (:body (:p (sleep 3) (fmt "hi, i'm the ~dth loop" 0)) (:p (sleep 3) (fmt "hi, i'm the ~dth loop" 1)) (:p (sleep 3) (fmt "hi, i'm the ~dth loop" 2)) (finish-output *standard-output*) (:p (sleep 3) (fmt "hi, i'm the ~dth loop" 3)) (:p (sleep 3) (fmt "hi, i'm the ~dth loop" 4)) (:p (sleep 3) (fmt "hi, i'm the ~dth loop" 5)))))) Running it (without the call to send-headers) in my REPL have the desired result: each part is printer before the next call to sleep. On the other hand, when I try it live with TBNL I have to wait for the whole page to be generated. Maybe is misinterpreted the documentation. Is it possible to write partial pages to the client stream with TBNL? I'm using apache2 with the latest mod_lisp2 and TBNL 0.9.9 on a Debian Etch system. -- Yannick Gingras

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[tbnl-devel] large file uploads
by Zach Beane 12 May '06

12 May '06

I would like to prevent files over a certain size from being uploaded. I don't want to check after the fact; I'd like to abort request processing as soon as the content-length is known to be too large. Is it ok to close the content-stream and error out of initialize-instance on the request? Is there a better way? Zach

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[tbnl-devel] multiple tbnl's
by quasi 12 May '06

12 May '06

hey folks, Is it possible to run multiple tbnl instances behind the same apache+mod_lisp ? I mean, it is possible to have differnt lisp images with tbnl running behind one apache+mod_lisp ? This would mean that the name of the tbnl in the apache.conf and the port, both have to be different for the different images, right ? thanks, -- quasi Utopia Unlimited!

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[tbnl-devel] application/x-www-form-urlencoded
by John Bates 12 May '06

12 May '06

I'm new to this framework and web development in general: I ran across this problem today, and I think it's a bug (and I kinda fixed it), but I'm not sure... Anyway, using Laszlo as a front-end, I tried to post to a url served by tbnl. Couldn't get at the POST data, couldn't get at it, couldn't get at it. Finally, I noticed two things: 1) the header from laszlo for content-type was: "application/x-www-form-urlencoded;charset=UTF-8" 2) in initialize-instance and recompute-request-parameters, the code was: (string-equal "application/x-www-form-urlencoded" (string-assoc "content-type" headers-in)) So I tossed in: (string-equal "application/x-www-form-urlencoded" (string-assoc "content-type" headers-in) :end2 (length "application/x-www-form-urlencoded)) which is not particularly efficient, but is at least correct. Am I wrong?

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tbnl-devel May 2006