August 2000 - Zope - Zope lists

RE: [Zope] Bi-directional update of Data.fs
by Chris McDonough 02 Aug '00

02 Aug '00

If you're doing little or nothing in the way of Python development in base classes (e.g. you're doing all of your development in the instance or in ZClasses), you may want to take a look at ZEO (http://www.zope.org/Products/ZEO) Setting up the ZEO "storage server" overseas and using a local Zope client as a sort of object cache might make the situation bearable and solve your synchronization problem. ZEO caches objects until they're invalidated by the storage server, so the object is read once and can be accessed many times until invalidated without needing to cross the wire to the storage server. If you are doing development on Python-based Products, you can still do this, but it's complicated badly by need to be very careful that the two installations keep "shared" Python modules (ala Product files) synchronized as well, as if they get out of sync, one of the two of you is going to end up with a broken Zope incessantly. It's not an ideal setup. There is no generic diff or merge facility for two arbitrarily modified Data.fs files. > -----Original Message----- > From: Brenton Bills [mailto:fud@mail.theinternet.com.au] > Sent: Wednesday, July 19, 2000 12:47 AM > To: zope(a)zope.org > Subject: [Zope] Bi-directional update of Data.fs > > > > Hi, > At the moment I am in a situation where I am working > for a company > overseas across the Internet. Because of the lag between us > and the fact > that I am working over a modem we have chosen both to have a > copy of the > Data.fs files and when I complete a project (or at the end of > the day) I > export the files I have modified. The only problem is at the > end of a hard > day of working remembering which files I have changed. What would be a > better solution is somesort of syncronisation between both > copies of our > Data.fs files so I can see the updates they have made and > they can see the > updates I have made at the end of each day. > > Is this possible and how can I do it? > > Thanks all, > Brenton Bills. > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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Re: [Zope] server dies
by Dieter Maurer 02 Aug '00

02 Aug '00

Leichtman, David J writes: > I was wondering if anyone else had experienced this problem: Ever since we > installed the ZPoPy database adapter, the server has been occasionally > crashing, and it gets worse and worse over time. Has anyone else experienced > this problem? We're running Zope through Apache, on a Solaris box, with > PostgreSQL. I'm really curious as to what could be causing this behavior. I > know that that adapter is still in development, but it seems like that would > be non-desirable behavior :) If there is some way that our setup is causing > this, any input would be appreciated. We are also still running the last > stable release of Zope (2.1.6, I think) with plans to upgrade next week. We have a similar problem with Zope 2.1.6 under Solaris 2.7 using ZOracleDA to connect to Oracle 8.1.6, no other C-level extensions. Something in the system writes uncontrolled into memory. Main target is the memory management leading to SIGSEGV in the function "t_splay" or (occasionally) infinite loops. "purify" reports "Write After Free" problems during release of Oracle database connections and "Uninitialized Memory Reads" in calls to "wrap_odesc". Both inside the Oracle 8 Client libraries. In one test run, purify detected an uncontrolled write into the heap from inside the "localtime_u" C library function. The function "tzcpy" was called writing "GMT" to an indeterminate destination. "tzcpy", normally, is called just once during initialization of the "time" module. I see only one plausible explanation: the data area of the C library has already been overwritten (undetected by "purify", which only control writes into the heap), the resulting heap corruption was a side effect. The main problem may be in the Oracle 8 client libraries. The old Oracle 7 interface used by DCOracle seems to be no longer documented (i.e. depracated) and maybe no longer maintained. But, maybe, the problem is elsewhere: in Zope/Python the Solaris Thread Library, the C-compiler. I will keep the list informed. Dieter

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"indirection" problem
by Jacques Exelrud 02 Aug '00

02 Aug '00

I have in a dtml var the name of a dtml document I want to show as part of another document. If I do a <dtml-var "_.getitem(file)"> (where file is the said variable) I get the content of that document show but now as html but as text, things like < have been translated to < Any sugestions ? Thanks in advance, Jacques

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webdav q
by Alex Rice 02 Aug '00

02 Aug '00

Hi, I was experimenting with Goliath, http://webdav.org/goliath/. It's a nice webdav client for MacOS. It has more or less the look and feel of the MacOS finder. Goliath has locking support, but disables that feature when talking to a Zope server. Also I was fiddling with Zope versions, but the webdav client seems to slip content underneath the versioning interface in Zope. I was wondering if it would be possible to make Zope version map into the webdav concept of locking, or does Zope have a concept of locking? -- // Alex(a)PanoramaPoint.com // Programmer, Panorama Point web communications // New Mexico, USA // 505-424-4800x35

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Take possession over DTML Documents/Methods
by Peter Bengtsson 02 Aug '00

02 Aug '00

Hello I use you Poll product [http://www.zope.org/Members/mega/poll] The only two documents I can control is the index and results page, which is fine. But how do I do if I want to change and modify how other things work, such as the way the results are presented and what happens after you've clicked 'Vote'. The reason I'm asking is that I want to translate everthing shown to the user in Swedish and I also want it to work with the rest of my sites content (CSS and layout). I managed this well with index and results. I can't change the product itself because I am being hosted by a friend and I can't ask him to modify products to suit me. I had the same problem with the URL Directory product http://www.zope.org/Members/Roug/SimpleURLs ]. I didn't want to use the thank_you_html page (found in Control Panel) so I changed (with my administrators consent) that to thankyou_html and put in my own thankyou_html document in the relevant folder. In other words, how do I take possession of the documents/methods of your otherwise lovely product? Peter Bengtsson - bloody good programmer

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Re: [Zope] compile ZPoPyDA product problems (continued)
by Stephen Nosal 02 Aug '00

02 Aug '00

Alright, slowly but surely. I've checked out ld.so.conf and the libraries appear to be setup correctly. The output of ldconfig -v shows (among other things): /opt/pgsql/lib: libpq.so.2.1 -> libpq.so.2.1 * There is no entry for the generic libpq.so * libpq.so is a link to libpq.so.2.1 Is this potentially the problem? Are there solutions? Thanks for all of the help already. - Steve On Tue, 01 August 2000, jpenny(a)universal-fasteners.com wrote: > > On Tue, Aug 01, 2000 at 02:01:45PM -0700, Stephen Nosal wrote: > > Well, I'm getting somewhere. The make and make install on the PoPymodule completed with no errors, but now in python the import PoPy returns the following: > > > > Traceback (innermost last): > > File "<stdin>", line 1, in ? > > ImportError: /usr/lib/python1.5/site-packages/PoPymodule.so: undefined symbol: PQfsize > > This is defined in libpq, so, it appears that PoPy is doing using > libpq as a shared library. This makes sense. Now, you know where > libpq lives. edit (as root) /etc/ld.so.conf. Add the path to > the library as the last line in this file. Then run ldconfig. > > You might want to man ld.so and man ldconfig before you do this. > This is not the kind of info to take on blind trust. > > > > > This is from the PoPy-1.2.1 tarball. > > > > On another note, ZPyGreSQLDA appears to be up and running. > > > > Thanks for all of the help. > > > > - Steve > > > > > > On Tue, 01 August 2000, jpenny(a)universal-fasteners.com wrote: > > > > > > > > On Tue, Aug 01, 2000 at 10:54:50AM -0700, Stephen Nosal wrote: > > > > Folks - > > > > > > > > I could use a hand here - I'm trying to compile the PoPy module for python so I can use the ZPoPyDA to connect to my PostgreSQL database. > > > > > > > > I keep getting the same compile error - > > > > > > > > gcc - shared PoPymodule.o -lpq -o PoPymodule.so > > > > /usr/i486-suse-linux/bin/ld: cannot find -lpq > > > > > > > > I have compiled other binaries on this machine, including Zope 2.2. Python runs fine, I just don't know enough about ld to understand the error. (I get the same error trying to compile ZPyGreSQLDA. > > > > > > > > > > This message is saying that the postgres library libpq cannot > > > be found by the linker (postgres was formerly called PostQuel, > > > hence pq). Not having Suse, which I have heard has somewhat > > > unusual layout, I cannot tell you for sure what to do... > > > > > > but try find / -name "libpq*" > > > > > > THis should find any libpq's on your system > > > > > > Then if libpq is in /usr/lib/foo, do > > > export LD_LIBRARY_PATH=/usr/lib/foo > > > gcc - shared PoPymodule.o -lpq -o PoPymodule.so > > > > > > > > > > Any pointers would be greatly appreciated. > > > > > > > > - Steve > > > > > > > > > > > > __________________________________________________________________ > > > > Get your Private, Anti-Spam, Free Email at http://e3mil.com > > > > and Step into a Friendly Universe! > > > > > > > > _______________________________________________ > > > > Zope maillist - Zope(a)zope.org > > > > http://lists.zope.org/mailman/listinfo/zope > > > > ** No cross posts or HTML encoding! ** > > > > (Related lists - > > > > http://lists.zope.org/mailman/listinfo/zope-announce > > > > http://lists.zope.org/mailman/listinfo/zope-dev ) > > > > > > > > > > __________________________________________________________________ > > Get your Private, Anti-Spam, Free Email at http://e3mil.com > > and Step into a Friendly Universe! > > > > _______________________________________________ > > Zope maillist - Zope(a)zope.org > > http://lists.zope.org/mailman/listinfo/zope > > ** No cross posts or HTML encoding! ** > > (Related lists - > > http://lists.zope.org/mailman/listinfo/zope-announce > > http://lists.zope.org/mailman/listinfo/zope-dev ) > > __________________________________________________________________ Get your Private, Anti-Spam, Free Email at http://e3mil.com and Step into a Friendly Universe!

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Custom error messages - bug?
by Peter Arvidsson 02 Aug '00

02 Aug '00

I have customized the standard error message and placed it in a folder above root level. When a error occurs the error message at the root level still get executed though. I have named my own error message the same (standard_error_message) and I am sure that the error I get comes from inside the folder I put my customized version in. I am also sure that there are no errors I my error message (it works if I put it at the root level). I know there has been some issues with this before but it was supposed to be fixed to 2.2 (which I run). Has any1 else had any problem with this or are there still bugs?

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2.2 Explicit/implicit problem.
by Capesius, Alan 02 Aug '00

02 Aug '00

I'm able to take ownership of objects to a new user manager-level account. Object then switch to implicit mode. For some objects I've switched them to implicit for testing. Once switched, they do not switch back. The button displayed under Ownership indicates that they can switch, but does nothing when clicked. Anyone run into this? Alan Capesius, MCSE Technical Support Engineer Sysmex Corporation of America capesiusa(a)sysmex.com

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Separate Instances of Zope
by blueeye 02 Aug '00

02 Aug '00

Hi, I have this setup: I have Zope running on 1 server. I have multiple servers accessing the zope server. If this server goes down, can I have a backup zope server that replicates the main server? Currently I'm running Zope on Windows 2000. (works like a charm!) How does one replicate this? Do I use a replication engine? Please help... Thanks in advance' Blueyez from Atlanta ___________________________________________________ GO Network Mail Get Your Free, Private E-mail at http://mail.go.com

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permission settings do not work like expected
by cuiod-tec Jens Gelhaar 02 Aug '00

02 Aug '00

Hi, I use zope 2.2.0 and I've got a problem with permission settings. When I try to limit the permissions for user to add only on type of objects to a folder then I get always two types back: - the one, which I like - and "Z Gadfly Database Connection" I used a local rule and discarded all "Acquire permission settings". The local rule has only one "ADD"-type, but like I said, I got gadfly to. Any idea? Jens

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