[Zope-dev] ZCatalog features
Hia guys, A couple of comments and questions about the ZCatalog: Is it possible to pass an argument to the catalog so that returned brains would instead be actual objects? Given that we have to manually join search results, because ZCatalog doesn't support ORs etc (for FieldIndexes), wouldn't it be useful to have some sort of tool that could take a set of results, and return a result with only unique values? Cheers, Morten ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Zope Server hanging :-(
The symptoms are as follows: 1. Go to a given URL, which doesn't respond (browser sits and spins) 2. Doing a 'top' on the server shows python nowhere to be seen (so it's not infinite-loop-processor-hogging) 3. ps shows the python threads are all still there, but none of them will respond. 3. doing a ./stop sucessfully stops Zope (the broswer returns a 'reset by peer') 4. doing a ./start yields the following the the stupid log file: Can anyone suggest how I might go about tracking this down? It's really beginning to piss me off. That said, I've seen quite a few posts now complaining about Zope hanging and crashing, so I'm actually beginning to worry about using Zope from a stability point of view. These symptoms are indeed very similar to what we had on the demo.iuveno-net.de site. We had an average up-time of around an hour or so, and the system also didn't really crash but just hang ... Right now we don't face these problems any more. As far as I know, the only thing Stephan changed on the server was exchanging the CoreSession tracking by the newest version (0.8 I think), which had to be patched to run for us AFAIK. Now the server is reliable again. I was really scared by this issue, too, as we had the same problems on a demo server for a customer ... Joachim. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] ZCatalog features
Morten W. Petersen wrote: Hia guys, A couple of comments and questions about the ZCatalog: Is it possible to pass an argument to the catalog so that returned brains would instead be actual objects? Not currentl, although the new brain objects have a method 'getObject' that makes getting the object straightforward while you're iterating over a bunch of them. Given that we have to manually join search results, because ZCatalog doesn't support ORs etc (for FieldIndexes), wouldn't it be useful to have some sort of tool that could take a set of results, and return a result with only unique values? Yes. There's a propsal on dev.zope.org to expose union and intersection operations to users of the catalog. http://dev.zope.org/Wikis/DevSite/Proposals/UnionAndIntersectionOperations . Comments are appreciated. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] ZPatterns Rack question..
At 06:00 PM 4/28/01 +0200, Christian Scholz wrote: Hi! First of all one note to the sql attribute provider: My problem seems to be solved now. Actually it was quite easy.. dunno why it took the long way.. thanks anyway to Phillip and Steve! But I have another problem now: I have some rack with persistent objects in it. Now I want to migrate my site to production. Problem: If I do this more often and the objects are within some Rack, then also these get copied to the production site and the old objects will get deleted there. Is there any way to first backup the contents of some rack? Or do I need to construct it all as external storage? (basically most things are in an sql db already, I just put image data etc. into the rack directly as I don't need relational access to it..) Actually I know how to read the objects from the BTree but I dunno how to store them again into another rack (which has the same storage attribs of course). Can I simply use _setRack()? I guess not, eh? :) My suggestion would be to copy the Rack using normal Zope copy/paste (assuming that works), and then from Python poke the old rack's BTree into the new Rack. Then delete the old rack. This really sucks as a mechanism, however. The way I originally intended to solve this issue was to allow the Rack's persistent data to be stored outside itself somewhere. That's why some versions of ZPatterns have a little dropdown on the Storage tab which only has one selection - stored inside the rack. The idea was that maybe someone would create storage providers which could be kept external to the Rack and then acquired. This could still be done, if somebody wanted to take up the coding. Then you could upgrade/replace a rack without damaging data stored in it. Ty and I never got around to doing it because so far, all our ZPatterns apps have not had any ZODB-based data, only SQL and LDAP. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
