- Pharo-users - lists.pharo.org

Re: [Pharo-users] MongoDB open close in production (singleton or not)

by Mariano Martinez Peck

Hi Sabine, take a look to Voyage, and its class VOMongoSessionPool. I think a nice way of dealing with what you ask is using the pool and each time you need to do something with the DB, you do it inside a block to #withDatabase: myPool withDatabase: [:database| self doSomething ] you also have #withSession instead of #withDatabase. btw, I guess we can move the pool class from voyage to mongo since it's decoupled. Cheers, On Thu, Jul 18, 2013 at 7:33 AM, Sabine KnÃ¶fel <sabine.knoefel(a)gmail.com>wrote: > Hi, > > Currently, I create one single Instance of Mongo when starting the Image. > > | theRoot | > theRoot := Mongo default. > theRoot open. > > and use it for all requests. In my development environment that works fine. > > My question is: is this the right way and will it work for production? > Or is it better to create one Mongo instance for each request (and close it > after the request)? > And, btw: what would happen if I would open many Mongo connections but > never > close any? > Or better one Instance per user session? > > Sabine > > (I posted this in Frameworks forum, possibly better here) > > > > -- > View this message in context: > http://forum.world.st/MongoDB-open-close-in-production-singleton-or-not-tp4… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > -- Mariano http://marianopeck.wordpress.com

July 18, 2013

New post on Voyage: Advanced queries

by Esteban Lorenzano

Hi, I just finished a section for the PharoForTheEnterprise book and I put it also as a blog post: http://smallworks.eu/web/blog/2013-07-18-Voyage-advanced-queries cheers, Esteban

July 18, 2013

MongoDB open close in production (singleton or not)

by Sabine KnÃ¶fel

Hi, Currently, I create one single Instance of Mongo when starting the Image. | theRoot | theRoot := Mongo default. theRoot open. and use it for all requests. In my development environment that works fine. My question is: is this the right way and will it work for production? Or is it better to create one Mongo instance for each request (and close it after the request)? And, btw: what would happen if I would open many Mongo connections but never close any? Or better one Instance per user session? Sabine (I posted this in Frameworks forum, possibly better here) -- View this message in context: http://forum.world.st/MongoDB-open-close-in-production-singleton-or-not-tp4… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

July 18, 2013

Re: [Pharo-users] SerialPlugin

by Bernat Romagosa

Still trying without success... Does anyone have an image, a VM and a SerialPlugin working in their machine that they can share with me? At this point I don't care too much on which OS, I'll find a machine here at work. The thing is I wanted to start developing right away, and this little obstacle is holding me back... Thanks a lot! Bernat. 2013/7/17 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> > Yep, I found that thread and tried all possible combinations: > > '/dev/ttyUSB0' > '/dev//ttyUSB0' > '/dev/ttyusb0' > '/dev//ttyusb0' > 'ttyUSB0' > 'ttyusb0' > > and none worked... :( > > > 2013/7/17 Esteban Lorenzano <estebanlm(a)gmail.com> > >> It is indeed annoying and obviously buggy. >> I kinda "fixed" it last year but since I didn't had any serial port stuff >> to test it, it was just in abstract (Luc was using it, thought) >> >> There was a report a couple of weeks ago to try using double slash. >> >> SerialPort new openPort: '/dev//ttyUSB0' >> >> >> >> Esteban >> >> On Jul 17, 2013, at 1:47 PM, Bernat Romagosa < >> tibabenfortlapalanca(a)gmail.com> wrote: >> >> So I compiled two VMs, one with the SerialPlugin as an internal plugin, >> the other one as an external plugin. >> >> On a Debian box, I connect an Arduino Diecimila board and I get its >> handler at /dev/ttyUSB0. However, on both VMs with fresh Pharo 2.0 images: >> >> SerialPort new openPort: '/dev/ttyUSB0' >> >> >> Fails with a generic error. >> >> What's wrong with SerialPort? The "cannot open port" error message is >> about as informative as "sorry, not gonna happen" :( >> >> >> 2013/7/17 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> >> >>> Great! I was missing the gl and alsa headers. All done now, thanks a lot >>> :) >>> >>> >>> 2013/7/17 Guillermo Polito <guillermopolito(a)gmail.com> >>> >>>> >>>> On Wed, Jul 17, 2013 at 12:39 PM, Bernat Romagosa < >>>> tibabenfortlapalanca(a)gmail.com> wrote: >>>> >>>>> Okay, it seems the patch is already included in the latest VMMaker >>>>> image, so no need to apply it. >>>>> >>>> >>>> That's nice :). Anyone with grants in the issue tracker can close it?? >>>> :D >>>> >>>> >>>>> >>>>> Still, having executed the script, I get yet another error, this time >>>>> related to gl.h (why does it need it? I left B3DAcceleratorPlugin out): >>>>> >>>>> [ 95%] Building C object >>>>> CMakeFiles/CogVM.dir/home/bromagosa/blessed/platforms/unix/vm/sqUnixMain.c.o >>>>> In file included from >>>>> /home/bromagosa/blessed/platforms/unix/vm/SqDisplay.h:16:0, >>>>> from >>>>> /home/bromagosa/blessed/platforms/unix/vm/sqUnixMain.c:140: >>>>> /home/bromagosa/blessed/platforms/unix/plugins/B3DAcceleratorPlugin/sqUnixOpenGL.h:21:22: >>>>> fatal error: GL/gl.h: El fitxer o directori no existeix >>>>> compilation terminated. >>>>> make[2]: *** >>>>> [CMakeFiles/CogVM.dir/home/bromagosa/blessed/platforms/unix/vm/sqUnixMain.c.o] >>>>> Error 1 >>>>> make[1]: *** [CMakeFiles/CogVM.dir/all] Error 2 >>>>> make: *** [all] Error 2 >>>>> >>>>> >>>> Hmm, which configuration are you using to copile? I think there is a >>>> UnixNoGLConfiguration or something like that... So either you install the >>>> gl libraries or use the no gl configuration to generate the sources :). >>>> In any case, I really don't know why there is that dependency with >>>> opengl... >>>> >>>> >>>>> >>>>> 2013/7/17 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> >>>>> >>>>>> ouch! I forgot to execute the script this time, and didn't install >>>>>> the patch either.. trying again, thanks! :) >>>>>> >>>>>> >>>>>> 2013/7/17 Guillermo Polito <guillermopolito(a)gmail.com> >>>>>> >>>>>>> Hi! >>>>>>> >>>>>>> before compiling you have to, inside the build folder, execute >>>>>>> codegen-scripts/extract-commit-info.sh >>>>>>> >>>>>>> Besides, I was looking at luc's tutorial and it lacks one step to >>>>>>> have serial plugin built: install the patch he made [1]. Did you do that? I >>>>>>> added a comment in the blog entry just in case... >>>>>>> >>>>>>> Guille >>>>>>> >>>>>>> [1] https://code.google.com/p/cog/issues/detail?id=119&q=luc >>>>>>> >>>>>>> >>>>>>> On Wed, Jul 17, 2013 at 12:18 PM, Bernat Romagosa < >>>>>>> tibabenfortlapalanca(a)gmail.com> wrote: >>>>>>> >>>>>>>> I found out how to leave B3DAcceleratorPlugin out, but now I get >>>>>>>> this error almost at the end of the compilation process: >>>>>>>> >>>>>>>> [ 95%] Building C object >>>>>>>> CMakeFiles/CogVM.dir/home/bromagosa/blessed/platforms/unix/vm/sqUnixMain.c.o >>>>>>>> In file included from >>>>>>>> /home/bromagosa/blessed/platforms/unix/vm/sqUnixMain.c:41:0: >>>>>>>> /home/bromagosa/blessed/platforms/Cross/vm/sqSCCSVersion.h:17:54: >>>>>>>> fatal error: vmVersionInfo.h: El fitxer o directori no existeix >>>>>>>> compilation terminated. >>>>>>>> make[2]: *** >>>>>>>> [CMakeFiles/CogVM.dir/home/bromagosa/blessed/platforms/unix/vm/sqUnixMain.c.o] >>>>>>>> Error 1 >>>>>>>> make[1]: *** [CMakeFiles/CogVM.dir/all] Error 2 >>>>>>>> make: *** [all] Error 2 >>>>>>>> >>>>>>>> >>>>>>>> "El fitxer o directori no existeix" is Catalan for "The file or >>>>>>>> directory does not exist". >>>>>>>> >>>>>>>> How comes this header isn't there? >>>>>>>> >>>>>>>> >>>>>>>> 2013/7/17 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> >>>>>>>> >>>>>>>>> Ok, it seems the problem was not having the sources file in the >>>>>>>>> same directory as the image. >>>>>>>>> >>>>>>>>> Anyway, now I've another problem when trying to compile. cmake >>>>>>>>> runs fine, but make fails with the following error: >>>>>>>>> >>>>>>>>> Scanning dependencies of target B3DAcceleratorPlugin >>>>>>>>> [ 57%] Building C object >>>>>>>>> B3DAcceleratorPlugin/CMakeFiles/B3DAcceleratorPlugin.dir/home/bromagosa/blessed/src/plugins/B3DAcceleratorPlugin/B3DAcceleratorPlugin.c.o >>>>>>>>> In file included from >>>>>>>>> /home/bromagosa/blessed/src/plugins/B3DAcceleratorPlugin/B3DAcceleratorPlugin.c:36:0: >>>>>>>>> /home/bromagosa/blessed/platforms/Cross/plugins/B3DAcceleratorPlugin/B3DAcceleratorPlugin.h:8:19: >>>>>>>>> fatal error: GL/gl.h: El fitxer o directori no existeix >>>>>>>>> compilation terminated. >>>>>>>>> make[2]: *** >>>>>>>>> [B3DAcceleratorPlugin/CMakeFiles/B3DAcceleratorPlugin.dir/home/bromagosa/blessed/src/plugins/B3DAcceleratorPlugin/B3DAcceleratorPlugin.c.o] >>>>>>>>> Error 1 >>>>>>>>> make[1]: *** >>>>>>>>> [B3DAcceleratorPlugin/CMakeFiles/B3DAcceleratorPlugin.dir/all] Error 2 >>>>>>>>> make: *** [all] Error 2 >>>>>>>>> >>>>>>>>> >>>>>>>>> Any ideas? >>>>>>>>> >>>>>>>>> (For the record, I do not need the B3DAcceleratorPlugin, so I >>>>>>>>> guess it could just be left out, but I don't know how does one do that >>>>>>>>> either) >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> 2013/7/16 Friedrich Dominicus <frido(a)q-software-solutions.de> >>>>>>>>> >>>>>>>>>> Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> writes: >>>>>>>>>> >>>>>>>>>> > Hi Friedrich, >>>>>>>>>> > >>>>>>>>>> > My machine is already a 32 bits one... here's the output of ldd: >>>>>>>>>> > >>>>>>>>>> > linux-gate.so.1 => (0xb7782000) >>>>>>>>>> > libm.so.6 => /lib/i386-linux-gnu/i686/cmov/libm.so.6 >>>>>>>>>> > (0xb7746000) >>>>>>>>>> > libdl.so.2 => /lib/i386-linux-gnu/i686/cmov/libdl.so.2 >>>>>>>>>> > (0xb7742000) >>>>>>>>>> > libpthread.so.0 => >>>>>>>>>> > /lib/i386-linux-gnu/i686/cmov/libpthread.so.0 (0xb7728000) >>>>>>>>>> > libc.so.6 => /lib/i386-linux-gnu/i686/cmov/libc.so.6 >>>>>>>>>> > (0xb75c5000) >>>>>>>>>> > /lib/ld-linux.so.2 (0xb7783000) >>>>>>>>>> > >>>>>>>>>> > Thanks! :) >>>>>>>>>> Well that looks fine to me. Sorry that I could not help >>>>>>>>>> >>>>>>>>>> Regards >>>>>>>>>> Friedrich >>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> Bernat Romagosa. >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Bernat Romagosa. >>>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Bernat Romagosa. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Bernat Romagosa. >>>>> >>>> >>>> >>> >>> >>> -- >>> Bernat Romagosa. >>> >> >> >> >> -- >> Bernat Romagosa. >> >> >> > > > -- > Bernat Romagosa. > -- Bernat Romagosa.

July 18, 2013

Re: [Pharo-users] installing Seaside on Pharo 2.0

by StÃ©phane Ducasse

can you retry because it works from here. On Jul 18, 2013, at 7:13 AM, sminni <sm(a)planage.com> wrote: > Thanks ... got the Zinc server to work > > but could not get to smalltalkhub.com > I just get a "Loading please wait" message that sits till I give up > What is the way to get the HOSeaside Package > > regards > Sanjay > > > > ----- > --- > Regards, Sanjay > -- > View this message in context: http://forum.world.st/installing-Seaside-on-Pharo-2-0-tp4698685p4699247.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

July 18, 2013

Re: [Pharo-users] development image memory use: 180MB in Pharo 2 vs. 40MB in Pharo 1.4.....

by StÃ©phane Ducasse

thanks paul for the information. We should pay attention to this. May be we will have to have one release of Pharo focusing on not improving the libraries but its runtime behavior. The problem is that we need enough room to move and improve the infrastructure. > I've been developing in the same Pharo2 image for a couple weeks and its > now 180MB. I use the same development habits as in Pharo 1.4 but there > the image would only be about 40MB. > > Using SpaceTally I can see that I have 40 MB of Arrays. And 10MB of > Bitmaps. 8MB of Floats, Strings, & OrderedCollections. Strange. We should check may be some memory leaks. > > My domain objects comprise about 20MB of the image. > > > Is there a way to check for memory leaks over a long period of time? > > Thanks > > Paul >

July 18, 2013

Re: [Pharo-users] development image memory use: 180MB in Pharo 2 vs. 40MB in Pharo 1.4.....

by StÃ©phane Ducasse

On Jul 18, 2013, at 8:04 AM, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > On Jul 17, 2013, at 9:59 PM, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > >> I've been developing in the same Pharo2 image for a couple weeks and its >> now 180MB. I use the same development habits as in Pharo 1.4 but there >> the image would only be about 40MB. >> > > I already saw that the current 3.0 download has 110.000 instances of arrayâ¦ > I wondered if that makes sense. We should have a look. > >> Using SpaceTally I can see that I have 40 MB of Arrays. And 10MB of >> Bitmaps. 8MB of Floats, Strings, & OrderedCollections. >> >> My domain objects comprise about 20MB of the image. >> > > Can you run > > ImageCleaner cleanUpForRelease > > this calls e.g. all the #cleanUp methods of all classes. > > > (We should think about how to call this (or a subset) more regularly > in normal operation) > > Marcus > > > >

July 18, 2013

Re: [Pharo-users] installing Seaside on Pharo 2.0

by phil＠highoctane.be

http://www.smalltalkhub.com/#!/~philippeback/HOSeaside --- Philippe Back Dramatic Performance Improvements Mob: +32(0) 478 650 140 | Fax: +32 (0) 70 408 027 Mail:phil@highoctane.be | Web: http://philippeback.eu Blog: http://philippeback.be | Twitter: @philippeback Youtube: http://www.youtube.com/user/philippeback/videos High Octane SPRL rue cour Boisacq 101 | 1301 Bierges | Belgium Featured on the Software Process and Measurement Cast http://spamcast.libsyn.com Sparx Systems Enterprise Architect and Ability Engineering EADocX Value Added Reseller On Thu, Jul 18, 2013 at 7:13 AM, sminni <sm(a)planage.com> wrote: > Thanks ... got the Zinc server to work > > but could not get to smalltalkhub.com > I just get a "Loading please wait" message that sits till I give up > What is the way to get the HOSeaside Package > > regards > Sanjay > > > > ----- > --- > Regards, Sanjay > -- > View this message in context: > http://forum.world.st/installing-Seaside-on-Pharo-2-0-tp4698685p4699247.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > >

July 18, 2013

Re: [Pharo-users] [ANN] BioSmalltalk published in Bioinformatics Journal

by StÃ©phane Ducasse

Yes every publisher say the same. Now you have the right to have a preprint on your web site. Stef On Jul 17, 2013, at 9:14 PM, HernÃ¡n Morales Durand <hernan.morales(a)gmail.com> wrote: > Hi Marcus, > > Thank you for the comments, I have been checking the link distribution conditions and they say people can access the article only from the Oxford Journals website for academic purposes, so here it is: > > http://bioinformatics.oxfordjournals.org/content/early/2013/07/09/bioinform… > > Sorry for the inconvenience. > Cheers, > > HernÃ¡n > > > > 2013/7/17 Marcus Denker <marcus.denker(a)inria.fr> > > On Jul 16, 2013, at 9:31 PM, HernÃ¡n Morales Durand <hernan.morales(a)gmail.com> wrote: > > > Doru, I can access the article through the "Full Text (PDF)" link at the right box titled "This Article". Maybe you have the right columns collapsed? There is an arrow button "Show all columns" if you cannot see the link. > > Let me know. > > > > Publishing is the act of making Paper in-accessible to the Public (that's where the name comes from). > > So what all serious publishers allow you to do is to make the version that you send them (not their version) available from your > website and/or an online-archive of your employer, > > It is very important to do that, as people will not jump through hoops to get your paper (e.g. go to the library?). > In the past I send emails to authors to get paper copies, but today I would just *never* do that. If *you* don't make your > paper available, why should I bother? i will just not read it and not cite it. > > The journal publishing is just important for your CV and getting tenure and things like that, the paper the people > really *read* is the one they can download from your website. > > Marcus >

July 18, 2013

Re: [Pharo-users] development image memory use: 180MB in Pharo 2 vs. 40MB in Pharo 1.4.....

by Marcus Denker

On Jul 17, 2013, at 9:59 PM, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > I've been developing in the same Pharo2 image for a couple weeks and its > now 180MB. I use the same development habits as in Pharo 1.4 but there > the image would only be about 40MB. > I already saw that the current 3.0 download has 110.000 instances of arrayâ¦ I wondered if that makes sense. > Using SpaceTally I can see that I have 40 MB of Arrays. And 10MB of > Bitmaps. 8MB of Floats, Strings, & OrderedCollections. > > My domain objects comprise about 20MB of the image. > Can you run ImageCleaner cleanUpForRelease this calls e.g. all the #cleanUp methods of all classes. (We should think about how to call this (or a subset) more regularly in normal operation) Marcus

July 18, 2013