- Zope - Zope lists

ListIndex?
by Benno Rice 28 Oct '99

28 Oct '99

I'm putting together some things that inherit from ZCatalog, but that would benefit greatly form being able to catalog list contents. Is there any documentation of the internals of the UnIndex and UnTextIndex modules that'd help me hack together an UnListIndex module? -- Benno Rice "No, no. We're *sweet* and XNFP Aries Dark Subculture- *innocent* evil bastards." friendly Internet Geek benno(a)netizen.com.au "Defend your joy"

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RE: Confera reply error
by Cayce Ullman 28 Oct '99

28 Oct '99

I had the same problem running on linux, it was fixed when I upgraded to Confera 1.3.2 go get it here : http://www.mtg.co.at/projects/products/Confera/ Cayce >I have the same error. Same versions, running on >Win95. It looks like the wrong >thing is being passed to regsub.gsub. Hope someone >knows exactly what to fix. ----Original Message----- From: davhsu(a)falcon.cchem.berkeley.edu <davhsu(a)falcon.cchem.berkeley.edu> >I can't post a reply to a Confera message. I'm running Python 1.5.2, >Confera 1.2.0, and Zope 2.0.1. Similar errors have been posted in Zope >archive mailing lists and bug reports, but no solution or patch. Does >anyone know of a fix? Thanks. > ===== __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

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Re: [Zope] Re: New Version of Zope RPMS Available
by Jeff Rush 28 Oct '99

28 Oct '99

On 27 Oct 1999 13:40:42 -0700, Karl Anderson wrote: Karl, I think the problem is that I made the change to omit the ZSYSLOG env var in the zserver.sh script for running PCGI+ZServer and you are running the ZServer-standalone version, right? (hope, hope) Because it's only been a few hours since my uploads, I've refreshed the RPMs on my site w/o bumping the version. You can just grab the Zope-zserver-* RPM or the source RPM if you want to rebuild. I'm not sure why just running "python z2.py" still fails for you but would like to hear of your results with the new RPMs. Sorry for the hassle. And for those who are running ZServer+PCGI, there is *nothing* in the RPMs that changed other than removing the ZSYSLOG env variable. Don't bother to re-download it all over again. -Jeff Rush >"Jeff Rush" <jrush(a)timecastle.net> writes: > >> I've upgraded my systems to Red Hat 6.1 and just this morning put up >> new RPMs for Zope that fix problems reported to me re RH 6.1. They >> are Zope-2.0.1-*5*... and you can get them from: >> >> http://starship.python.net/crew/jrush/Zope/Zope2.html > >I'm still not able to start the server without setting a >ZSYSLOG_SERVER env variable and changing my syslog init script to >listen at the port. I'm using redhat release 6.1-1. Are you able to >run the server out of the box, and if so, any idea what the difference >is with my system? > >My zserver.sh (link to zserver_wo_pcgi.sh) still has the 'export >ZSYSLOG="anything" line, but I still get the problem if I just run the >"python z2.py" line from the command line without the ZSYSLOG_SERVER >env var.

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Getting the / (root) id/name
by Edward Muller 28 Oct '99

28 Oct '99

How do I get the / (root) id/name? I want to use it with <dtml-tree>......... ---------------------------------------------------------------- Edward Muller / Firm Wide Architecture - Systems Architect Paine Webber - 1000 Harbor Blvd. 5th Floor - Weehawken, NJ 07087 201-352-0190 - 201-272-7002 (fax) - emuller(a)painewebber.com <mailto:emuller@painewebber.com> ----------------------------------------------------------------

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Zope Cacheability
by Garth T Kidd 28 Oct '99

28 Oct '99

I think I've figured out why www.zope.org is so slow, and it's got nothing to do with the hardware or running the mailing list on the server itself. Quite simply, www.zope.org is doing anywhere up to seven times as much work as it needs to do. If you want the world's proxy servers to co-operate with your site to reduce the load on your servers, and want to be able to front-end your servers with reverse proxy caches to *really* take the load off your servers, you need to generate headers which tell them when they need to check back to see whether your object has been modified and -- for when they check -- when the object they're requesting was last modified. I spotted www.zope.org's problem whilst using it as an example site to check that a proxy I was installing was working properly. The log file was full of misses, even upon reloads. Checking later with Mark Nottingham's cacheability checker (written in Python) told the whole story: http://www.ircache.net/cgi-bin/cacheability.py The home page itself will always be stale. That's arguably okay because it's so dynamic, but we could give ourselves pretty good dynamism and still avoid a lot of needless hits if we whack an "expires in ten minutes" header item in there. If we're waiting for a team to approve a news item, we can wait another ten minutes for the page to expire out of everyone's caches. More subtle thinking on this is below. The following images referenced by the home page are completely non-cacheable: Images/blue-rounder1.gif Images/blue-rounder2.gif Images/redhat.gif Images/apache.gif Images/python.gif Images/spacer.gif (hit more than once) SpotLightOn/garage So, every time you hit www.zope.org, your browser probably makes a good seven needless requests. That makes you wait, and needlessly loads down the server. It's not just the main page, though. Every page you hit has at least the first five of those. No wonder the server is crawling! The only good ews is that Images/zpowered.jpg is cacheable. It was last modified about ten weeks ago, according to the server. Proxies will have to check back to find out whether or not it has been updated, but at least the server can just tell them it hasn't instead of sending them the whole image again, like the others. Adding an expiry tag to this would help, too. Why zpowered.jpg is cacheable but none of the others are is beyond me. Whatever's going on, though, we should fix it. There's no reason those guys can't be sending an accurate Last-modified and a reasonable Expires (say, an hour or a day in the future -- how often are you going to change 'em?). --- It's also fun to hit http://sqiushdot.org/ with the cacheability checker. We have to suffer a redirect to get to the actual content, which wastes a hit. Neither the redirect or its destination are cacheable. Most of Squishdot's images are cacheable -- they issue Last-Modified headers -- but will be checked once per page view by any vigilant cache. The non-vigilant ones will probably use the "if it's been around this long it'll be around a quarter again as long" kludge. A good reason to whack an explicit Expires header in is that you get to over-ride that. Result: vigilant proxies lay off, and non-vigilant proxies pay more attention. What more could you want? Squishdot uses http://nedstat.tripod.com/ as an access counter. Sprung! Ironically, the only image that is cacheable on www.zope.org -- the Powered By Zope logo -- is uncacheable on Squishdot. D'oh! --- Once I've got access to the guts of a public Zope server (should be less than a week) I'm going to start drilling into Zope cacheability and figuring out how easy it is to fix. I strongly suspect the answer is going to be "not very hard at all", except perhaps for the mucking around deeper in Zope's internals required to get Last-Modified answers without rendering an object (see below). The goal is simple: figure out what modifications can be made to Zope's basic items so that they're at least reasonably cacheable. The best reference for figuring out what headers we want to generate is probably Mark's Caching Tutorial for Web Authors and Webmasters: http://www.mnot.net/cache_docs/ ... and as well as patching Zope up, we can ask Mark to update his document to add Zope to the list of potentially cache-friendly live content engines. :) As well as tackling the images, which is the easiest Big Win, we could hack some code together to figure out when a page last mutated enough to be considered "modified". For the www.zope.org front page, that's probably when the last news item was approved or the last spotlight was added, whichever was more recent. This hack can't be more than a few lines of code, right? I'm thinking along the lines of a last_modified DTML method which returns the time the object was created unless an "always_stale" property is true. For bonus points, we could use a dependency_list property to have last_modified check the objects we depend on (the list of recent news items, for example) automatically. As I mentioned above, Zope will still end up rendering the entire object if we generate the header items using <dtml-call>. If we want an improvement there, we need to dip deeper into Zope's guts. We'll need some Serious Zope Talent to intervene, there. :) Any volunteers? Regards, Garth.

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RE: [Zope] Are there any Tutorials?
by Michel Pelletier 27 Oct '99

27 Oct '99

> -----Original Message----- > From: Jose de Leon [mailto:jadiel@thevision.net] > Sent: Wednesday, October 27, 1999 6:21 PM > To: zope(a)zope.org > Subject: [Zope] Are there any Tutorials? > > > This type of software is new to me and fascinating. I'm > having a hard time > changing my paradigm. > > Are there any other tutorials to help someone get started > besides the basic > one that comes with Zope when you install it? There are a staggering amount of how-tos on the Zope site (76!). Most of them written by community members. Granted, some of them are not written in the clearest english, but all of them provide a pretty usefull thing or two. Some of them go way indepth, some of them are even funny. Alas, i don't doubt some of them have an error or two in them. The coolest thing is that most of them are written from the perspective of experience. They're like 76 diary entries of various community members. Due to their number, your best tool here is the zope's site advanced search page: http://www.zope.org/SiteIndex/searchForm Here, you can, for example, select 'How-To' as your meta_type (if you don't select one, you'll search everything), and type what your serching for. Or don't type anything and see them all. -Michel

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Are there any Tutorials?
by Jose de Leon 27 Oct '99

27 Oct '99

This type of software is new to me and fascinating. I'm having a hard time changing my paradigm. Are there any other tutorials to help someone get started besides the basic one that comes with Zope when you install it? Thanks, Jose

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running ./start doesn't go into background
by Geoff Nordli 27 Oct '99

27 Oct '99

I started zope using the "./start" command. It starts everything, but doesn't go into the background. Is that normal. should I start it like: "./start &" to put it into the background. I also have two "z2.py -D" processes running one has UID of nobody, and the other has UID of root. I would think there should only be one, and it should have the UID of nobody. thanks, Geoff Nordli

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Imorting Dynamic Pic into Zope
by Stephan Richter 27 Oct '99

27 Oct '99

hello everyone, I hav a problem: I am generating with PIL or GD an image using an external method. The picture gets saved on the local File System. How can I import the picture into Zope, so I can display it. (Note: The picture has a short lifetime and it is not necessary to add it to the ZODB.) Thanks, Stephan -- Stephan Richter iXL - Software Designer and Engineer CBU - Physics, Computer Science and Chemistry Student

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SmartWorker
by Oleg Broytmann 27 Oct '99

27 Oct '99

Hi! While browsing the Web, just found Yet Another Web Application Development Platform. Now it is SmartWorker, and it is based on Perl: http://www.smartworker.org/ License will change in near future for (I think) more open. Web Developmnet Platforms? Aren't there a little too many of them? :) Oleg. ---- Oleg Broytmann Foundation for Effective Policies phd(a)phd.russ.ru Programmers don't die, they just GOSUB without RETURN.

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