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External Method in Zope
by vaibhav pol 07 Apr '08

07 Apr '08

hi, I am using Zope-2.8.1-final and also added zoperl-1.0.beta5 for perl support . I wrote a Perl module which edit files the file access permission is only to root and i want to invoking the module as onther user . by some way i want to invoke the perl interpreter as root for my user. and i also want to know how the zope call external method. please help me!!

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Re: [Zope] External Method in Zope
by vaibhav pol 07 Apr '08

07 Apr '08

Thanks alot but i am not using command but i using perl function to modify the passwd and shadow file. in my module that's why i want to invoke that module as root On Mon, Apr 7, 2008 at 1:19 PM, Andreas Jung <lists(a)zopyx.com> wrote: > > > --On 7. April 2008 13:15:04 +0530 vaibhav pol <vaibhav4947(a)gmail.com> > wrote: > > hi, > > > > I am using Zope-2.8.1-final and also added zoperl-1.0.beta5 for perl > > support . I wrote a Perl module which edit files the file access > > permission is only to root and i want to invoking the module as onther > > user . by some way i want to invoke the perl interpreter as root for my > > user. > > and i also want to know how the zope call external method. > > > > This has also little to do with Zope. You could use 'sudo' for > starting other command within an other user context. > > -aj

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Re: [Zope] step by step going from single zope to zeo
by Chris Withers 07 Apr '08

07 Apr '08

David Bear wrote: > On Wednesday 02 April 2008 01:31, Chris Withers wrote: >> David Bear wrote: >>> Are there any step by step guidelines for how to modify a current single >>> instance zope into a zeo configuration? I have a single zope instance. >>> That zope.conf define two mount points for multiple zodb's. I would like >>> to take that single instance and turn it in to a zeo server, with to zeo >>> clients. >>> >>> Are they any recent howto's on this? >> Dunno, but the rough chain of events: > > Thanks for the suggestions... I wonder rather than making more zope instances, > can I just cp -R ./zopeinstance1 ./zopeinstance2 and then > modify ./zopeinstance2/etc/zope.conf to suit the needs of a zeo client? zeo storage servers and clients have different layouts for their instances. You can copy clientinstance1 to clientinstance2 safely, but you can't copy storageserverinstance to clientinstance1. cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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merging zodb's
by David Bear 07 Apr '08

07 Apr '08

I have a zodb from a dead zope instance that I wanted to merge in to another running zope. I thought I could use a mount point to do this and just specify the old zodb for the storage in my mount point. alas, this did not work as expect. After making the modification in my zope.conf like this: <zodb_db support > # ssw file store <filestorage> path $INSTANCE/var/srvx-Data.fs </filestorage> mount-point /support </zodb_db> And then restarting zope and adding the mount point -- I see nothing underneath it. So, I assume this is NOT a valid way to merge to zodb's together? Does anyone have an suggestions on a way I might combine 2 zodb's? -- David Bear College of Public Programs/ASU 411 N Central, Phoenix, AZ 85004

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Zope+SSL
by Jonathan Salazar Santos 07 Apr '08

07 Apr '08

Hello All, I recently bought a dedicated server at Godaddy.com, the think its, I want to run zope in https mode, but not success, so... really: Must I need configure Apache+FastCGI+Zope to get ready SSL on Zope? Any help will be appreciate, thank you in advance. Saludos, -- Lic. Jonathan Salazar Vista: http://jonathansalazar.com

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Using buildout to distribute projects
by Dennis Kempin 07 Apr '08

07 Apr '08

Hi, I have a project that consists of an main package and several plugin packages. It is very nice and easy to set this up using buildout using the develop option. But I was wondering if it is possible to use buildout to create a distribution of my project. I want to have it generate egg files from my packages instead of linking to their source, so i can tar the whole buildout folder without my source and distribute that file. That would be really nice because users could just untar that file and call the scripts in the bin folder because all required eggs are available. Another reason for me to use eggs for my packages is that my main package has to send plugins eggs to remote hosts, to keep them up to date. Has anyone an Idea how to do this? Or is buildout not intended for that kind of distribution generation? thank you and best regards, Dennis Kempin

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how many zope instances
by Garry Saddington 06 Apr '08

06 Apr '08

I have tried to find information on how many Zope instances can be run on a single machine but all searches have failed to be definitive. Is there any information on this, because I would like to have a separate instance for each of my customers running on a different port number and it would be useful to be able to predict the number of servers I would need. Regards Garry

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Analyzing a ZODB.
by Manuel Vazquez Acosta 06 Apr '08

06 Apr '08

Hi all, Recently I was appointed to improve a Plone's performance, and I have the following issue: I see too many transactions made by the anonymous user. I can reproduce this behaviour: just watching the home page produces a transaction at /index by None. I wonder if there's a way to actually see what objects (or object types) are modified by those transactions. So I can go directly to the source of the (surely innecesary) transaction. I tried analyze.py but I don't grasp the output accurately. Best regards, Manuel.

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Re: Hooking persistent.Persistent.__setstate__ was Re: [ZODB-Dev] Analyzing a ZODB.
by Jim Fulton 06 Apr '08

06 Apr '08

On Apr 5, 2008, at 6:30 PM, Alan Runyan wrote: > Here is something more ZODB and less Zope related (kinda). > > I was talking with Benji a few weeks ago about a problem that should > be easy to debug but was not. Here is the scenerio: > > - Customer has software on a remote machine. They are seeing > unnecessary transaction commits. Just like the guy 'Analyzing a > ZODB'. > > - Customer is completely incapable of doing anything other than > putting > a script on the filesystem. > > - Benji and I thought about it and he proposed 'the simplest thing > that > c/should work, monkey patch persistent.__setstate__' so that I > could see > what objects were being mutated. That doesn't show you which objects are being mutated. It only shows you which objects are being loaded. If you want to see what objects are actually being mutated, it would be better, IMO, to set up some sort of event channel on object invalidations. If you want to see what code is mutating objects, it would be better to set breakpoints in Connection.register. > > - Unfortunately ZODB 3.x does not have a Python fallback of > persistent.Persistent -- its in C. The customer did not have a C > compiler > on their box. > > IIRC how I solved it was increase ZEO event log to see the oid's. > Then I > walked him through loading the oid up to see what object was being > mutated. It was more painful than it should have been. Yup, but automating something like this might have been informative without being painful. > Question: Is it possible for ZODB 3.9 to have a pure python > implementation of persistent.Persistent? Probably. > Maybe this would be a good > ZODB GSOC project? The current C-level persistence implementation is rather nasty because of the close coupling with the persistent cache implementation. My goal is to come up with a new persistence implementation that is much simpler and more flexible with both Python and C implementations. I haven't had time to work on this though. :( If someone wanted to work on this, I'd be happy to go into more detail. ... > - increasing zeo server log level and watching oid's being changed > is sort-of the equivalent of turning on RDBMS logging to see SQL > stmt's being executed. Unfortunately I believe without having a > hook in persistent.Persistent we can never really get that level > of granularity (i.e. __getattribute__ is only accessible in client) > with only ZEO server logs. Regardless of whether it's implementation is in C or Python, the current implementation is complex and highly coupled. A more flexible system that I envision, would make it easier to experiment with alternate cache implementations and would also make it easier to substitute implementations that did more logging for debugging purposes. > This is a transparent plea for a "new feature". But I believe it > would > significantly help people writing ZODB applications. > > Maybe people should always have a base class that you override > those methods which delegate to persistent.Persistent. i.e. > class MyMixin(persistent.Persistent) and mixin MyMixin > instead of mixin persistent.Persistent directly? Then > you can instrument the MyMixin with the logging? That would introduce lots of overhead and complexity that I don't think is warranted. Jim -- Jim Fulton Zope Corporation

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Passing an instance in a form to a product method
by Ulla Theiss 04 Apr '08

04 Apr '08

Hello List, I have to pass an instance of a self-defined class within a form to a product method. I try it in the following way: <form action="addUploadFile" enctype="multipart/form-data" target="main" method=post> <input name="doc:instance" value="<dtml-var doc>" type="hidden"> <input name="addFile" value="add File" type="submit"> </form> But within the method addUploadFile, always the parameter doc is passed as a string (the name of the instance) Does anybody know, what I have to change, that it works? Many thanks in advance Ulla.

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