- Zope - Zope lists

RE: [Zope] ZServer threads and pool-size question
by Pascal Peregrina 04 Jan '06

04 Jan '06

I understand. So what is the typical value to use for pool-size given a certain threads number: n+3 ? Pascal -----Message d'origine----- De : zope-bounces+pperegrina=lastminute.com(a)zope.org [mailto:zope-bounces+pperegrina=lastminute.com@zope.org] De la part de Jens Vagelpohl Envoyé : mercredi 4 janvier 2006 14:31 À : zope list user Objet : Re: [Zope] ZServer threads and pool-size question On 4 Jan 2006, at 13:23, Pascal Peregrina wrote: > Hi, > > Can anyone tell me why, by default in a zope instance config file, > the connection pool size is 7 while the number of zserver threads > is 4? > > Why not 4 and 4? Because under some conditions you can actually have more than 4 connections in use. Not having extra connections available has the potential to block the server. jens _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************

3 2

What did your Zope server do in 2004?
by Jake 04 Jan '06

04 Jan '06

I was looking at stats this morning for my Zope installation and thought it would be fun to share with others what you are running and how many hits your Zope server did this year (not counting the last 3 days of course). Pages: 4,025,657 Hits: 21,783,750 Bandwidth: 68.27 GB Hardware: AMD 2.133, 1.5 GB RAM, RAID 1 w/ 2 x 36GB SCSI Zope: 2.7b4, CMF 1.4, Plone 2.0 and many products That is almost 30% more than I did last year. A few more sites, more traffic, all good. Reply with your stats: Pages: Hits: Bandwidth: Hardware: Zope: Jake -- http://www.ZopeZone.com

8 10

ZServer threads and pool-size question
by Pascal Peregrina 04 Jan '06

04 Jan '06

Hi, Can anyone tell me why, by default in a zope instance config file, the connection pool size is 7 while the number of zserver threads is 4? Why not 4 and 4? Thanks. Pascal ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************

3 2

RE: [Zope] ZServer threads and pool-size question
by Pascal Peregrina 04 Jan '06

04 Jan '06

Ok, much clearer now... I might focus on cache sizes then. Thanks. Pascal -----Message d'origine----- De : zope-bounces(a)zope.org [mailto:zope-bounces@zope.org] De la part de Jens Vagelpohl Envoyé : mercredi 4 janvier 2006 15:17 À : zope list user Objet : Re: [Zope] ZServer threads and pool-size question On 4 Jan 2006, at 14:11, Pascal Peregrina wrote: > So, are you telling me that the ideal configuration is using all > default values (connection objects cache size, ZEO cache size, > threads and connection pool)? The default values for thread number and connection pool covers all but the most exotic use cases. The cache sizes can benefit greatly from experimenting, but there is no standard recipe, it all depends on your specific software and hardware environment. jens _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************

1 0

RE: [Zope] ZServer threads and pool-size question
by Pascal Peregrina 04 Jan '06

04 Jan '06

So, are you telling me that the ideal configuration is using all default values (connection objects cache size, ZEO cache size, threads and connection pool)? Pascal -----Message d'origine----- De : zope-bounces(a)zope.org [mailto:zope-bounces@zope.org] De la part de Jens Vagelpohl Envoyé : mercredi 4 janvier 2006 15:02 À : zope list user Objet : Re: [Zope] ZServer threads and pool-size question On 4 Jan 2006, at 13:53, Pascal Peregrina wrote: > Because I use ZEO, I got lots of often modified objects, and on > Zope servers I got lots of memory so I can give it a try ;) Where do you see the gain? More threads and connection also means more caches that need to be updated/invalidated when you modify an object. You might slow your system down instead. jens _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************

2 1

RE: [Zope] ZServer threads and pool-size question
by Pascal Peregrina 04 Jan '06

04 Jan '06

Because I use ZEO, I got lots of often modified objects, and on Zope servers I got lots of memory so I can give it a try ;) Pascal -----Message d'origine----- De : zope-bounces(a)zope.org [mailto:zope-bounces@zope.org] De la part de Jens Vagelpohl Envoyé : mercredi 4 janvier 2006 14:45 À : zope list user Objet : Re: [Zope] ZServer threads and pool-size question On 4 Jan 2006, at 13:34, Pascal Peregrina wrote: > I understand. > > So what is the typical value to use for pool-size given a certain > threads number: n+3 ? There is no "typical value". Changing the thread number and pool size puts you *way* off-road, fiddling with it should be avoided. You will have to experiment if you really think you need to change that setting. More connections -> more RAM usage. Makes me wonder why you think that is necessary. jens _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com **********************************************************************

2 1

How to get hands on url with hash?
by "Jürgen R. Plasser" 03 Jan '06

03 Jan '06

Is it possible (or even intended, did'nt read any RFCs regarding this) to retreive any url like http://www.example.com/index_html#hash (<- note: hash!) from the request? I need this for a login-redirect, the user clicks on a link like the one above and zope needs authentication (done by CookieCrumbler). I store the referrer in field called came_from where I can redirect (CookieCrumbler does this) the browser to after login. What do you think? Jürgen

3 4

Zope3 - where to start?
by Maciej Zięba 02 Jan '06

02 Jan '06

Hi :) I'm a total newbie to Zope and I would like to learn it... Unfortunatelly I can't find any good documentation to start with (it could be that I'm a very bad researcher)... All of the Zope3 documentation on zope.org is about developing it and not about using it :( Is there a "ZopeBook" or something similiar for Zope 3? Could you please recommend some place I could start learning it (articles, tutorials, etc.)? Please excuse my poor English. Best regards, Crocodil

4 3

find ZClasses instances
by Godefroid Chapelle 02 Jan '06

02 Jan '06

Hi, I get to a setup where ZClasses could still be used : one ZClass is installed in one of the product. I need to find out if there are any instance of the ZClass in the ZODB in order to migrate them to sthing saner. I have tried to use the manage_findResult method, passing it the ZClass name as meta_type. I got no result. But I am not sure the ZClass name is its meta_type. Any hint how to find out if there are instances of a specific ZClass in a ZODB ? Thanks -- Godefroid Chapelle (aka __gotcha)- BubbleNet http://bubblenet.be

2 2

UnicodeDecodeError: 'ascii' codec can't decode
by Jon Bowlas 02 Jan '06

02 Jan '06

Hi all, I'm not sure if any of you are familiar with Silva (CMS) but Ive created a SQL code source which works fine when tested in the ZMI but when attempting to add this code source into a Silva document via the Silva Management Interface I get a UnicodeDecodeError. I think I know why this is but Im not sure how to resolve it, so any suggestions would be appreciated. Basically my 'Silva SQL Source' generates a MultiListField by extracting its values from a database however there are some quite unusual characters contained in the returned recordset for the MultiListField, see below the tuple I generate from the recordset. [('Developmental Neurobiology', 'ANAT2008'), ('Neuroanatomy', 'ANAT2009'), ('The Evolution and Development of Body Form - Visceral Systems', 'ANAT2022'), ('The Evolution and\r\nDevelopment of Body Form \xbf The\r\nMusculoskeletal System', 'ANAT2023'), ("Man's Place in Nature,\r\n1750\xbf1900: The Debate in Britain", 'HMED3001'), ('Medicine, Disease and\r\nSociety from Antiquity to the\r\nRenaissance', 'HMED3003'), ('Madness and Society', 'HMED3004'), ('Medicine and Modern\r\nSociety', 'HMED3006'), ('Colonial and Empire\r\nMedicine', 'HMED3009'), ('Disease in History', 'HMED3010'), ('The Rise of Modern\r\nMedicine, 1650\xbf1900', 'HMED3013'), ('Medicine in Asia', 'HMED3014'), ('Advanced Cell Biology', 'ANAT3001'), ('Mechanisms of Development', 'ANAT3003'), ('Neural Basis of Motivation and Learning', 'ANAT3018'), ('Advanced Neuroanatomy', 'ANAT3025'), ('Neurobiology of Neurodegenerative Diseases', 'ANAT3028'), ('Cellular and Developmental Neurobiology', 'ANAT3030'), ('The Control of Movement', 'ANAT3031'), ('Neural Computation and Models of Brain Function', 'ANAT3041'), ('The Peripheral Nervous System', 'ANAT3033'), ('Pain', 'ANAT3042'), ('Biological Timing (Chronobiology)', 'ANAT3043'), ('Neurobiology of Vision', 'ANAT3044'), ('Integrated Downstream Processing', 'BENG4001'), ('Design and Control of Biochemical Reactors', 'BENG4002'), ('Bioprocess Validation and Quality Control', 'BENG4010'), ('Integrated Biochemical Engineering Design', 'BENG4011'), ('Bioprocess Design and Implementation', 'BENG4012'), ('- Research Project', 'Option 1'), ('Bioprocess Research Project and', 'BENG4005'), ('Bioprocess Experimental Study', 'BENG4006'), ('- Biological Sciences', 'Option 2'), ('Molecular Biology for Biochemical Engineers', 'BIOC4601'), ('Structures of Biological Polymers', 'BIOC4602'), ('Metabolic Pathways and\r\ntheir Regulation', 'BIOC4603'), ('- Process Engineering', 'Option 3'), ('Introduction to Human Anatomy', 'ANAT1003')] As you can see this containes some strange chars particularly \r\n which I believe is a carriage return, and \xbf which I believe represents a hyphen - So Im assuming that this is the reason for the failure in the SMI. And would like to find a way to either replace these characters or alternatively change the recordset encoding prior to generating the MultiListField. I tried replacing these characters by converting the tuple for my MultiListField into a string first using a python script but it didnt seem to work (do anything): modules = context.module_retriever() mytuple = modules.tuples() mystring =str(mytuple).replace('\xbf','-') return mystring N.B. module_retriever is my Z SQL method that returns the resultset. Does anyone have any ideas as to how I can resolve this? Jon UCL

1 0