IRC log of #zope3-dev for Wednesday, 2008-07-09

radixOh, I just found the bug about that. https://bugs.launchpad.net/zope3/+bug/9848200:00
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mcdoncdoes anyone know where (if) in z3 the support for form elements like "foo:int" and "bar:record" live?00:50
mcdoncn/m zope.publisher.browser00:51
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mulc_Can a browser:page directive be replicated by a ( persistent ) object registered in a local site manager?06:52
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malthemulc_: sure, a local adapter.10:27
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Subdinohi. I think I identified a problem with shutdown sequence: if a worker thread is processing a transaction at shutdown time and it lasts more than 3 seconds (1 second per shutdown phase with zopectl stop), then it will get killed. But nothing prevents it from being in, say, tpc_finish at the time it gets killed, meaning storages can be left in an inconsistent state.12:09
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Subdinommh, I guess I should reiterate my discovery14:35
Subdinohi. I think I identified a problem with shutdown sequence: if a worker thread is processing a transaction at shutdown time and it lasts more than 3 seconds (1 second per shutdown phase with zopectl stop), then it will get killed. But nothing prevents it from being in, say, tpc_finish at the time it gets killed, meaning storages can be left in an inconsistent state.14:35
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__mac__Subdino: please write this discovery in a mail to the zope-dev-mailinglist14:39
Subdinook14:46
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Subdino__mac__: mail sent16:03
__mac__Subdino: nice16:04
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Subdino__mac__: say that again (...or not) after reading it ;)16:05
__mac__k16:05
SubdinoI'm afraid my formulation is not so clear...16:05
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Subdinoon a loosely related topic, I'm trying to modify ClockServer to handle shutdown events, but I can't find how to do that syncrhonously16:10
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* Subdino loves wifi16:24
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jayaraj_hi friends, can any one tell me how easy/difficult it is to get nginx infront of zope3?17:05
afd___jayaraj_: I'm not using nginx, but there's a buildout recipe with it, it probably has integration options17:07
afd___you could check that, for inspiration17:07
jayaraj_afd___, i heard it delivers good performance! and much better than apache! even Lovely is quite impressed i think :)17:13
afd___yes, I've heard17:13
jayaraj_actually i am trying to take away the load of upload/download processing from zope3 into another server... so i had a look at Tramline an apache module! its concept is good but it do upload with out asking zope3 application! so i am chacking arround for another solution!17:16
mcdoncjayaraj_: have you tried using zodb blobs?  they improve the download/storage speed of large files a good bit.17:20
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jayaraj_but chances are there that we cant use ZODB even!17:23
jayaraj_mcdonc, ^17:24
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jayaraj_mcdonc, i never tried zodb blobs... let me have a look at it!17:26
mcdoncjayaraj_: are you using a custom z3 publication?  you're not using zodb?17:27
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jayaraj_mcdoc, we are not yet decided.... will need to double check it. we are still evaluating our options!17:30
mcdoncwell, if you haven't made the decision yet, the default for z3 is "use zodb" so in some sense it has already been made for you17:32
jayaraj_mcdonc, thats right. and we are running prototypes on zodb itself.17:35
mcdoncah.  well, then, i suspect zodb would work fine for what you want (although you might choose not to use it for whatever reason)17:37
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jayaraj_mcdonc, we will know about it after we finsh with the evaluation!17:40
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mcdoncftr, i wrote most of the code for a website that acts as "online file backup" using zodb and an older version of the blob code, that site is in production (http://websafe.com), so i know some formulation of zodb+blobs is capable of handling high "write pressure" under load.17:43
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jayaraj_hmm that could be a valuable note! how does it show on traffic monitors?17:45
mcdoncthe customer hasn't set any up yet (to my annoyance)17:46
mcdoncbut it's currently holding about a TB of data17:47
mcdoncand multiple automated backup runs of thousands of files happen all the time17:47
jayaraj_oh! ic then how many users it has now?17:47
mcdonchundreds (not thousands)17:48
malthemcdonc: thanks -re- z3c.pt17:49
mcdoncmalthe: oh, sure, thank you!  you did a great job...17:49
malthe500 req/s is not too shabby at all17:49
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mcdoncheh... well, it's *kinda* running.. or at least will be running on repoze.org now17:50
malthewe can also thank Hanno Schlichting for the recent additional performance increase from 10x to 15x17:50
mcdonchanno is a speed freak ;-)17:50
maltheyep17:50
maltheI think it was mostly accomplished by introducing a new stream buffer class.17:50
maltheno longer pure python though17:51
mcdoncmalthe... ftr, i've "baked in" z3c.pt" to (working title) "repoze.bfg", which is a very simple web framework based on z3+wsgi stuff.17:52
mcdonchttp://svn.repoze.org/repoze.bfg/trunk/repoze/bfg/metaconfigure.py drives e.g. http://svn.repoze.org/repoze.bfg/trunk/repoze/bfg/sampleapp/configure.zcml17:52
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malthecool17:53
malthenot bad at all17:53
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Subdino__mac__: did you had the time to read my zope-dev mail ?18:12
mcdoncSubdino: the 2nd issue (zdaemon/zdrun) can be solved by not using zdaemon.. you could instead use "runzope" (is there a "runzope" in z3? or are we talking about z2?) under an external process controller18:16
mcdoncwhen you say "write blocking shutdown methods", what exactly needs to change?18:19
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