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Re: [Zope] installing PIF in win32 zope
by Ian Hood 04 Feb '05

04 Feb '05

Chris Withers wrote: > Ian Hood wrote: > >> I am a newbie working through the zope book and tutorials. >> The zope book examples regarding Image manipulation states that the >> python PIF is required. >> The only info I can find for installing PIF is Unix/Linux oriented.. > > > You sure you don't mean PIL? > > Chris > ah... yes actually you're right.. just a typo -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.5 - Release Date: 03/02/2005

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RE: Zope and mod_python
by Pascal Peregrina 04 Feb '05

04 Feb '05

Thanks for the quick reply. A first very simple ApacheBench looked promising : + Apache2/mod_python with default number of Apache threads, etc vs + Zope instances with default number of threads shows that Apache2/mod_python is about 2 times faster. But this does not prove lots yet, as default number of Apache threads is high. I will try to optimize my zhandler code, specially the ZPublisher response (string containing the whole HTTP response) to mod_python response (I have to read HTTP headers and HTTP body to correctly set the reponse). I will probably just extend mod_python response object to be Zope Publisher compliant. I got the logging working (I mean the event log, cause of course Z2.log is useless as I don't run any ZServer). Well, each mod_python interpreter running one Zope handler print to the same log file, but at least it works. About the clean shutdown : as I don't run any ZServer, maybe there is nothing particular to do ? I have been looking at LifeTime.py code and it looks like shutdown code is only for ZServers. New version of __init__.py : __all__ = ['zhandler'] zope_pythonpath='/export/home/pperegri/20050203/opt/Zope-2.7.4-0/lib/python' zope_conf='/export/home/pperegri/test/conf/zhandler.conf' import sys if not zope_pythonpath in sys.path: sys.path.append(zope_pythonpath) import Zope if not Zope._began_startup: import os Zope.configure('/export/home/pperegri/test/conf/zhandler.conf') import App.config cfg = App.config.getConfiguration() if cfg.eventlog is not None: cfg.eventlog() import zLOG zLOG.LOG('zHandler', zLOG.INFO,'Init : starting Zope') Zope.startup() Pascal -----Message d'origine----- De : Tres Seaver [mailto:tseaver@zope.com] Envoyé : vendredi 4 février 2005 17:40 À : Pascal Peregrina Objet : Re: Zope and mod_python ********************************************************************** 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 ********************************************************************** -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Pascal Peregrina wrote: | Hi, | | I have successfully (I think) integrated Zope with Apache/mod_python, just | to make some tests. Wow! That is awesome. | I would like to know if you think that this can be interesting in terms of | performance (specially number of simultaneous requests being handled, | compared to one "real" Zope instance, even with number of threads | increased). Good questions: we would need to do a fair amount of difficult testing to know for sure. Certainly it is a big win for shops which are already comfortable with managing large-scale dynamic Apache installations. | Sorry in advance if I missed something important and if this is not | interesting at all :) Not a all. | By now I have not been able to get the logging working, Zope's logging relies on having a single "gateway" in the appserver process which is used by the worker threads. I think your mod_python child processes are like Zope worker threads without the "parent" (which has the gateway). I wonder if configuring it to use syslog would Just Work (TM)? | and I am not | completely sure about clean shutdown when Apache is stopped, but I will | continue investigating... Doesn't Apache / mod_python allow you to register a "graceful shutdown" callback? | Software : | + httpd-2.0.52 | + mod_python-3.1.3 | + Python-2.3.4 | + psyco-1.4 (only to use Zope Speedpack product) | + Zope 2.7.4 | + Several Zope products (Localizer, CMF 1.5.0, ...) | | Architecture : | + One Zeo instance | + Apache / mod_python | and that's all :) | | I created a zhandler package (very first draft) containing : | + __init__.py : Zope init | + zhandler.py : the handler itself (it uses ZPublisher) | | Then, from standard build/install/configuration of all the software above, | this is the configuration changes I did : | + Created a Zeo instance | + httpd.conf (global settings) : | SetHandler mod_python | PythonInterpreter zinterpreter | PythonHandler zhandler.zhandler | PythonDebug On | + and this is the zope.conf file (I called it zhandler.conf) I used | (basically it only consisted in removing all <server> occurences) : | ############################################################################ | ### | # Welcome to Zope 2. | ############################################################################ | ### | # | # This is the Zope configuration file. The Zope configuration file | # shows what the default configuration directives are, and show | # examples for each directive. To declare a directive, make sure that | # you add it to a line that does not begin with '#'. Note that comments | # are only allowed at the beginning of a line: you may not add comments | # after directive text on the same line. | | # ZConfig "defines" used for later textual substitution | | %define INSTANCE /export/home/pperegri/20050203/instances/zope_rw | %define ZOPE /export/home/pperegri/20050203/opt/Zope-2.7.4-0 | | instancehome $INSTANCE | products /export/home/pperegri/20050203/opt/Products | debug-mode off | zeo-client-name zcmd | | <eventlog> | level all | <logfile> | path $INSTANCE/log/cmdline_event.log | level info | </logfile> | </eventlog> | | <logger access> | level WARN | <logfile> | path $INSTANCE/log/cmdline_Z2.log | format %(message)s | </logfile> | </logger> | | <zodb_db temporary> | mount-point /temp_folder | <temporarystorage> | name sessions | </temporarystorage> | container-class Products.TemporaryFolder.TemporaryContainer | </zodb_db> | | <zodb_db remote> | mount-point / | cache-size 40000 | <zeoclient> | cache-size 256MB | server 192.168.11.163:9001 | read-only off | storage 1 | name zeostorage | var $INSTANCE/var | </zeoclient> | </zodb_db> | | | + __init.py__ | __all__ = ['zhandler'] | | zope_pythonpath='/export/home/pperegri/20050203/opt/Zope-2.7.4-0/lib/python' | zope_conf='/export/home/pperegri/test/conf/zhandler.conf' | | import sys | if not zope_pythonpath in sys.path: | sys.path.append(zope_pythonpath) | | import Zope | if not Zope._began_startup: | Zope.configure('/export/home/pperegri/test/conf/zhandler.conf') | Zope.app() | | | + zhandler.py | import mod_python.apache | import os | import sys | | # this will save memory | #os.environ = {} | | import ZPublisher | | class ZopeStdout(mod_python.apache.NullIO): | | """ | Class that allows writing to the socket directly for Zope. | """ | | def __init__(self, req): | self.req = req | self.pos = 0 | | def write(self, result): | if not result or self.pos: return | pos1=result.find('\r\n\r\n') | pos2=result.find('\n\n') | if pos1!=-1 and pos2!=-1 and pos1>pos2: | ss = result.split('\n\n', 1) | else: | ss = result.split('\r\n\r\n', 1) | if len(ss) < 2: | ss = result.split('\n\n', 1) | ss[0]=ss[0].replace('\r\n', '\n') | for line in ss[0].split('\n'): | if line.find(':')!=-1: | h,v=line.split(':',1) | if h.lower() == "status": | status = int(v.split()[0]) | self.req.status = status | elif h.lower() == "content-type": | self.req.content_type = v | self.req.headers_out[h] = v | else: | self.req.headers_out.add(h, v) | if len(ss)==2: | self.req.write(ss[1]) | self.pos+=len(ss[1]) | | def tell(self): return self.pos | | def handler(req): | save_env, si, so = mod_python.apache.setup_cgi(req) | sys.stdout = ZopeStdout(req) | if 'REQUEST_URI' in os.environ: | os.environ['PATH_INFO']=os.environ['REQUEST_URI'].split('?')[0] | os.environ['PATH_TRANSLATED']=os.environ['PATH_INFO'] | if 'HTTP_CONNECTION' in os.environ: | os.environ['CONNECTION_TYPE']=os.environ['HTTP_CONNECTION'] | os.environ['SCRIPT_NAME']='' | names=os.environ.keys() | for name in names: | if not name.startswith('HTTP_') and not name.startswith('PATH_') and | not name.startswith('SERVER_') and not name in | ['CONNECTION_TYPE','GATEWAY_INTERFACE','REQUEST_METHOD','REMOTE_ADDR','SCRIP | T_NAME','QUERY_STRING']: | del os.environ[name] | try: | ZPublisher.publish_module('Main', stdin=sys.stdin, | stdout=sys.stdout, stderr=sys.stderr, | environ=os.environ) | finally: | mod_python.apache.restore_nocgi(save_env, si, so) | return mod_python.apache.OK Very impressive work. Tres. - -- =============================================================== Tres Seaver tseaver(a)zope.com Zope Corporation "Zope Dealers" http://www.zope.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFCA6VZGqWXf00rNCgRAkhcAJ4m6pDA5q6CkKeYyg2IkXUNLgBc0wCfWWy0 npGh1X7k3Q8kqLmJLfq8q6w= =zdNn -----END PGP SIGNATURE-----

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Re: optimising Zope startup time
by Paul Winkler 04 Feb '05

04 Feb '05

On Fri, Feb 04, 2005 at 08:35:02AM +0100, martin f krafft wrote: > also sprach Tres Seaver <tseaver(a)zope.com> [2005.02.03.2143 +0100]: > > Logically, you want to have the storage running whenever the > > appserver is up, so start it first and stop it last. > > Right. Except this calls for some additional logic rather than > chaining the z*ctl commands. Oh well... > > then again, I guess if Zope if about to go down anyway, it does not > really matter if ZEO is stopped a split of a second before. I dunno about that. I have not done a proper experiment but my impression is that if zope is busy, it takes a really long time to shut down when the zeo server has died... maybe there are write transactions pending and zope is patiently waiting for a zeo connection to handle them. Or something like that, I don't know. Haven't bothered to check it out because i so rarely need to shut down ZEO. It stays up pretty much forever. -- Paul Winkler http://www.slinkp.com

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[UserDiscussion] good morning
by Simon Michael 04 Feb '05

04 Feb '05

Good morning all! it is a fine day in southern california, fresh and with only a hint of smog over the ocean. http://zwiki.org/BugDay is under way in the US/Pacific timezone. (fireworks, etc) Drop in to #zwiki if you have time today. Best, -Simon last spam this week, I promise

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Zope and mod_python
by Pascal Peregrina 04 Feb '05

04 Feb '05

Hi, I have successfully (I think) integrated Zope with Apache/mod_python, just to make some tests. I would like to know if you think that this can be interesting in terms of performance (specially number of simultaneous requests being handled, compared to one "real" Zope instance, even with number of threads increased). Sorry in advance if I missed something important and if this is not interesting at all :) By now I have not been able to get the logging working, and I am not completely sure about clean shutdown when Apache is stopped, but I will continue investigating... Software : + httpd-2.0.52 + mod_python-3.1.3 + Python-2.3.4 + psyco-1.4 (only to use Zope Speedpack product) + Zope 2.7.4 + Several Zope products (Localizer, CMF 1.5.0, ...) Architecture : + One Zeo instance + Apache / mod_python and that's all :) I created a zhandler package (very first draft) containing : + __init__.py : Zope init + zhandler.py : the handler itself (it uses ZPublisher) Then, from standard build/install/configuration of all the software above, this is the configuration changes I did : + Created a Zeo instance + httpd.conf (global settings) : SetHandler mod_python PythonInterpreter zinterpreter PythonHandler zhandler.zhandler PythonDebug On + and this is the zope.conf file (I called it zhandler.conf) I used (basically it only consisted in removing all <server> occurences) : ############################################################################ ### # Welcome to Zope 2. ############################################################################ ### # # This is the Zope configuration file. The Zope configuration file # shows what the default configuration directives are, and show # examples for each directive. To declare a directive, make sure that # you add it to a line that does not begin with '#'. Note that comments # are only allowed at the beginning of a line: you may not add comments # after directive text on the same line. # ZConfig "defines" used for later textual substitution %define INSTANCE /export/home/pperegri/20050203/instances/zope_rw %define ZOPE /export/home/pperegri/20050203/opt/Zope-2.7.4-0 instancehome $INSTANCE products /export/home/pperegri/20050203/opt/Products debug-mode off zeo-client-name zcmd <eventlog> level all <logfile> path $INSTANCE/log/cmdline_event.log level info </logfile> </eventlog> <logger access> level WARN <logfile> path $INSTANCE/log/cmdline_Z2.log format %(message)s </logfile> </logger> <zodb_db temporary> mount-point /temp_folder <temporarystorage> name sessions </temporarystorage> container-class Products.TemporaryFolder.TemporaryContainer </zodb_db> <zodb_db remote> mount-point / cache-size 40000 <zeoclient> cache-size 256MB server 192.168.11.163:9001 read-only off storage 1 name zeostorage var $INSTANCE/var </zeoclient> </zodb_db> + __init.py__ __all__ = ['zhandler'] zope_pythonpath='/export/home/pperegri/20050203/opt/Zope-2.7.4-0/lib/python' zope_conf='/export/home/pperegri/test/conf/zhandler.conf' import sys if not zope_pythonpath in sys.path: sys.path.append(zope_pythonpath) import Zope if not Zope._began_startup: Zope.configure('/export/home/pperegri/test/conf/zhandler.conf') Zope.app() + zhandler.py import mod_python.apache import os import sys # this will save memory #os.environ = {} import ZPublisher class ZopeStdout(mod_python.apache.NullIO): """ Class that allows writing to the socket directly for Zope. """ def __init__(self, req): self.req = req self.pos = 0 def write(self, result): if not result or self.pos: return pos1=result.find('\r\n\r\n') pos2=result.find('\n\n') if pos1!=-1 and pos2!=-1 and pos1>pos2: ss = result.split('\n\n', 1) else: ss = result.split('\r\n\r\n', 1) if len(ss) < 2: ss = result.split('\n\n', 1) ss[0]=ss[0].replace('\r\n', '\n') for line in ss[0].split('\n'): if line.find(':')!=-1: h,v=line.split(':',1) if h.lower() == "status": status = int(v.split()[0]) self.req.status = status elif h.lower() == "content-type": self.req.content_type = v self.req.headers_out[h] = v else: self.req.headers_out.add(h, v) if len(ss)==2: self.req.write(ss[1]) self.pos+=len(ss[1]) def tell(self): return self.pos def handler(req): save_env, si, so = mod_python.apache.setup_cgi(req) sys.stdout = ZopeStdout(req) if 'REQUEST_URI' in os.environ: os.environ['PATH_INFO']=os.environ['REQUEST_URI'].split('?')[0] os.environ['PATH_TRANSLATED']=os.environ['PATH_INFO'] if 'HTTP_CONNECTION' in os.environ: os.environ['CONNECTION_TYPE']=os.environ['HTTP_CONNECTION'] os.environ['SCRIPT_NAME']='' names=os.environ.keys() for name in names: if not name.startswith('HTTP_') and not name.startswith('PATH_') and not name.startswith('SERVER_') and not name in ['CONNECTION_TYPE','GATEWAY_INTERFACE','REQUEST_METHOD','REMOTE_ADDR','SCRIP T_NAME','QUERY_STRING']: del os.environ[name] try: ZPublisher.publish_module('Main', stdin=sys.stdin, stdout=sys.stdout, stderr=sys.stderr, environ=os.environ) finally: mod_python.apache.restore_nocgi(save_env, si, so) return mod_python.apache.OK 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 **********************************************************************

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Programmatically setting default perms for products
by Jeff Gentry 04 Feb '05

04 Feb '05

Hello ... I am writing a disk-based product, and while I've set what permissions are required for various tasks using __ac_permissions__, what I really would like to do at this point is describe a set of default permissions for a newly created instance of my product (for instance, I want to set certain folders contained within to *not* acquire permissions, I'd like to set certain things to requrie authorized/owner/etc permissions, etc). I've looked around (perhaps I'm not asking the write questions to google and such) and have yet to find something that describes this. I'm assuming this is possible (perhaps it isn't, and that's why I can't find anything) - any hints? Thanks -J

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Zope and OAI
by Yuri 04 Feb '05

04 Feb '05

Hi! There are several (at least two...) products to manage OAI with Zope. Can someone share his experiences in this list? Thanks :)

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Virtual Hosting with Sun iPlanet Web Proxy Server
by John Kavanagh 04 Feb '05

04 Feb '05

Hello, Zope Community. Has anyone used the Sun iPlanet Web Proxy Server to Virtual Host their Zope sites? We're running Sun iPlanet Web Proxy Server 3.6 and have configured Virtual Multihosting the following way: Virtual Mapping Host regex: sitename(|.domain.com)(|:80) Destination prefix: http://domain.com:8080/sitename It works fine when you type http://sitename.domain.com in to your browser. It brings up the correct page with the correct URL in the address bar. However, every internal (relative) link on the page reverts to http://sitename.domain.com:8080/sitename. I've tried the standard configuration with the Virtual Host Monster in conjunction but it didn't affect it. Thoughts? -- John Kavanagh Corporate Web Manager Earth Satellite Corporation http://www.earthsat.com

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Getting Properties of Objects in Folders Within Catalog Results
by John Tynan 04 Feb '05

04 Feb '05

I am using the following script to get objects out of the catalog: objects = [] results = [] for object in context.Catalog(meta_type='Folder'):results.append(object) print results return results And I recieve the following results: [<mybrains instance at 22E275B0>, <mybrains instance at 14AEC958> ]However, I would like to get information about objects within each of the folders that are returned (such as the id and description of images that are contained in the folders). I know this information would not be part of each folder's entry in the catalog, but can it be obtained through aquisition -- perhaps if I know the path to the object? Can this be done using a python script to query the catalog, and then dtml to access the namespace for each folder? Thanks in advance, John T.

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PEAK
by Andreas Pauley 04 Feb '05

04 Feb '05

Hi, Has anyone here had a look at PEAK yet? http://peak.telecommunity.com/ What would you say is the main differences between Zope (specifically Zope X3) and PEAK? In an enterprise application environment (read: no website stuff), when would PEAK be better suited and when would you rather use Zope X3? Regards, Andreas Pauley

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