| supton | ZODB Q: can anyone confirm that storages don't manage the open/closed state of connections? I'm having ConnectionStateError messages triggered by a (Plone) application, and I'm wanting to rule out RelStorage as a contributing factor (I don't think it is). http://pastie.org/1886028 | 00:15 |
|---|---|---|
| supton | no freakin' clue why the event handler trying to access an annotation would run into a closed connection | 00:15 |
| kosh | hmm that is not an error I have ever seen before | 00:29 |
| kosh | zope is supposed to open a connection to storage and keep it open | 00:29 |
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| kosh | sm: greetings insane person | 00:33 |
| TresEquis | supton, the "DB" object manages connections, not the storage | 00:40 |
| supton | TresEquis: that's what I thought, and I was able to duplicate my problem on both ZEO and relstorage | 00:40 |
| supton | thanks | 00:40 |
| TresEquis | either you have code which is erroneously reusing a closed connection | 00:40 |
| kosh | how would you write code inside plone though that screwed with the db connection? | 00:41 |
| TresEquis | or else is trying to close a connection which is still actively bound to a trnasaction | 00:41 |
| TresEquis | usually you managed to "leak" the connection into a module global | 00:41 |
| supton | I'm trying to audit my code for globals caching a persistent object, and I'm trying to audit upstream packages I'm using for use of setSite() | 00:41 |
| TresEquis | and then tried to use it after the request | 00:41 |
| kosh | I just wonder how complex the code would need to be to cause a weird error like that | 00:42 |
| TresEquis | sticking a persistent object into the global site manager would be an easy fail ;) | 00:43 |
| supton | the strange thing is that this is a zope.lifecycleevent event handler trying to access an annotation on an object within the context of a request | 00:43 |
| kosh | https://bugs.launchpad.net/zope2/+bug/739692?comments=all well it seems nobody cares about my patch, it looks like the milestone has now been set to none and no comments on it | 00:43 |
| _mup_ | Bug #739692: Add blob support to OFS.Image.Image and OFS.Image.File <Zope 2:Confirmed for tseaver> < https://launchpad.net/bugs/739692 > | 00:44 |
| TresEquis | I'm guessing you have a utility registered which has a persistent object as an attribute | 00:44 |
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| TresEquis | kosh, it is assigned to me | 00:45 |
| kosh | ah okay I just wondered since hanno changed the milestone | 00:45 |
| TresEquis | Hanno was noting that 2.13.7 went out without the patch | 00:45 |
| TresEquis | (I think) | 00:45 |
| kosh | ah ok | 00:45 |
| TresEquis | one can argue that, as a "new feature", it should be targeted to 2.14 (the trunk) | 00:47 |
| kosh | that is fine also I just wonderd what else I should do at this point? should I bring it up on zope dev and see if anyone wants to comment on it? | 00:47 |
| TresEquis | that wouldn't hurt -- I would be glad to hand it off ;) | 00:48 |
| kosh | okay I will bring it up on zope dev then and see what anyone else things | 00:48 |
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| supton | okay, is it dangerous to do something like this: self._v_some_cached_value.__parent__ = self -- I'm using a parent pointer reference from a transient cached value back to a persistent object. Could this be contributing to my problem? | 00:59 |
| * supton guesses this is but one nail I've driven into my foot | 01:00 | |
| kosh | I have transient objects that refer to persistent objects that don't cause this problem, the ones I have get created and have their __parent__ set to a persistent object and that does not seem to cause any issues | 01:01 |
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| sm | hail kosh | 02:41 |
| kosh | greetings burned one! | 02:41 |
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| MrTango | hi, i have crazy problems with an zope2.10/plone3.3.5 instance, some times it hangs, nothing in the log, use no cpu time and i see mostly nothing activity with strace on this process | 18:59 |
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| MrTango | can anyone please give me a hint to find out what happen? | 19:00 |
| MrTango | this instance runs with serverthreads = 3 | 19:01 |
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| kosh | MrTango: you might want to ask in #plone for help since they might know of a plone bug related to that | 21:11 |
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