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Docs
by Tom Deprez 07 Apr '00

07 Apr '00

Hi, I'm going to (try!) to write a small book on Zope. I hear people complaining a lot about the documentation with Zope. I'm all ears to hear what persons expect from such a book. Right now, I'm generating the table of contents, thus it's a good time to include what people expect. After that I'll post this to the publisher. If the publisher agrees, then it's only waiting until the book is finished. You can send examples of what you need, ideas etc to my address tom.deprez(a)village.uunet.be and I'll try to incorporate them. Regards, Tom. ps. This is also good information for the ZDP.

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pmp survey
by Tom Scheidt 07 Apr '00

07 Apr '00

Hi, Does anyone have any info about how to us the pmp survey? In particular, where the submitted info goes? Has anyone been successfully using it? Thanks in advance. ************************* Tom Scheidt www.falsemirror.com tom(a)falsemirror.com *************************

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Seeming DCORacle Bug
by Ken Kinder 07 Apr '00

07 Apr '00

In the Zope Oracle interface, there seems to be a bug... A certain query always responds with this traceback: oci.error Sorry, a Zope error occurred. Traceback (innermost last): File /home/Zope-2.1.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /home/Zope-2.1.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 179, in publish File /home/Zope-2.1.4-linux2-x86/lib/python/Zope/__init__.py, line 180, in zpublisher_exception_hook (Object: ElementWithAttributes) File /home/Zope-2.1.4-linux2-x86/lib/python/ZODB/Transaction.py, line 180, in begin File /home/Zope-2.1.4-linux2-x86/lib/python/ZODB/Transaction.py, line 155, in abort File /home/Zope-2.1.4-linux2-x86/lib/python/Shared/DC/ZRDB/TM.py, line 124, in abort File /home/Zope-2.1.4-linux2-x86/lib/python/Products/DOracleDA/db.py, line 132, in _abort File /home/Zope-2.1.4-linux2-x86/lib/python/Products/DOracleDA/DCOracle/ociCurs.py, line 199, in execute File /home/Zope-2.1.4-linux2-x86/lib/python/Products/DOracleDA/DCOracle/ociCurs.py, line 81, in _error oci.error: (3114, 'ORA-03114: not connected to ORACLE\012') After that query runs and generates that error, all other queries on the connection object generate the same error. Upon going to the connection object, it reports itself as being open. There does not seem to be anything wrong with my query. Is this a DCOracle bug? Has anyone seen it? -- Ken Kinder 303.381.7631

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Zope performance and memory usage (SybaseDAv2, too)
by Hung Jung Lu 07 Apr '00

07 Apr '00

>On Fri, 7 Apr 2000, John Morton wrote: > > Most of that memory is actually shared between the threads, so the > > size of one thread is closer to your real memory usage. Is this a factual statement or is it a conjecture? I used the Unix command "top" to see the memory usage, and each thread was occupying a physical memory size of 23 MB (before I restarted and packed Zope.) After I restarted and packed Zope, it's started to take about 7MB and slowly increased now taking up 12 MB, each thread. The previous boot up of Zope has been running for about a week, so I still can't guarantee it won't climb up again to 23 MB. > > A lot of that memory usage will be cached objects, cached Sybase > > queries, and the Gadfly database, which is kept in memory. Oops, just as I am typing this message, after accessing another table in Sybase, the memory usage went up to 14 MB. So I think the Sybase queries are definitely the ones to blame. My SybaseDAv2 adapter has been REALLY SLOW, too, about 0.3 sec per query. So I think there is either some inefficiency or memory leak in SybaseDAv2. Arrghh... why would SybaseDAv2 take up the task of caching queries result? This does not make a lot of sense.... The database server should be the one caching results, not the adapter... > > Try > > flushing Zope's cache and packing it after a restart to see what the > > 'base' memory usage should be. Thanks. It was 7 MB, about the size of Data.fs. > > Everything else will be cache (unless > > there really is some hitherto unknown memory leak!). Probably memory leak in Sybase adapter... I seem to remember someone mentioned this before (?), not sure, though. I will dig in some more. >There must be. If one is lucky and the Zope process doesn't crash for a >long timeone will find that the process takes way more memory than (thread >number)xData.fs size. I have seen it with many Zope installations even >with very simple ones. thanks, Hung Jung ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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Re: [Zope] Zope performance and memory usage
by Tony Rossignol 07 Apr '00

07 Apr '00

John Morton wrote: > > Most of that memory is actually shared between the threads, so the > size of one thread is closer to your real memory usage. This is one area that at first was very confusing, the way Linux reports memory appears to be inconsistent when it comes to memory usage and threads vs processes. > > A lot of that memory usage will be cached objects, cached Sybase > queries, and the Gadfly database, which is kept in memory. I've been trying to see what effects memory usage and the single biggest factor, beyond the amount and type of "stuff" in you ZODB, appears to be the 'target size' and 'maximum time between accesses' parameters on the Cache Parameters tab of the Control_Panel/Database page. The default of 400 objects and 60 secs between access does keep the memory consumption down, I don't recall off hand how low we where running but around 100M was about right. Recently I jumped these values up to 450,000 objects and 5 minutes between access, we currently have around 300,000 ojects total in the database. This change brought about quite a different memory usage pattern. Once load began to rise we saw one server reach 400+M memory usage before I restared the server w/ a reduced time between accesses value (that machine only has 512M). Our other machines restart too frequently to see just how high memory would grow. -- ------------------------------- tonyr(a)ep.newtimes.com Director of Web Technology New Times, Inc. -------------------------------

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Authentification with the SAM of NT (Security Account Manager)
by Vincent 07 Apr '00

07 Apr '00

Hi, Does anyone know if Zope allows authentification of a user with the SAM (Security Account Manager) of Windows NT ? I mean : -> The user types his login/password -> and then, zope asks the SAM if this user does exists (or not). Thanks. Vincent

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Calandars in ZOPE
by Ken Kinder 07 Apr '00

07 Apr '00

Does anyone know of some DTML to draw calendars? -- Ken Kinder 303.381.7631

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Printing, let's try this again
by Daniel G. Rusch 07 Apr '00

07 Apr '00

I have a site that users use to build quotes. Once they get them the way they like them they are going to need to print them. The browser print button is not a good solution for many reasons, we need a header and footer on pages, pagination etc. So the the question once again is: Is anyone printing from Zope. i.e. sending html to a html to pdf converter, or some other solution? Note: The ZPdfDocument doesnt convert the complete html page. Dan

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Newbie <dtml-if> question
by Stuart Foster 07 Apr '00

07 Apr '00

I have the following statement: <dtml-if "'<dtml-var id>.jpg' in somelist"> DoSomething </dtml-if> id is some arbitrary numeric value that will change. Is the If tag being resolved to: <dtml-if "'1.jpg' in somelist"> or <dtml-if "<dtml-var id>.jpg in somelist"> Thanks Stuart Foster MediServe Information Systems > http://www.mediserve.com >

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Superuser domain authentication
by Stephen Harrison 07 Apr '00

07 Apr '00

I decided to tighten up security on our zope installations by putting domain restrictions on the superuser. However, I discovered a problem. If I access the server directly from within the allowed domain (port 8080) then no problem. But when accessing it through apache, I find that I cannot authenticate at all, no matter where I am connecting from. Is this a problem other people have had? Is there a solution? Cheers, Stephen -- Stephen Harrison - stephen(a)nipltd.com New Information Paradigms - www.nipltd.com

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