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| 01:08.47 | *** topic/#storm is The Storm Python ORM - http://storm.canonical.com/ - 0.16 released! || Review branches: https://code.launchpad.net/storm/+activereviews || IRC logs: http://ibot.rikers.org/#storm/ || API documentation: http://people.canonical.com/~jkakar/storm/ |
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| 17:28.22 | reidn | Hi All -> |
| 17:29.11 | reidn | Any quick tips on debugging 'OrderLoopError: Can't flush due to ordering loop' messages? |
| 17:29.20 | reidn | Can't quite see what the problem might be. |
| 17:32.37 | jkakar | reidn: Sounds like you have a circular dependency that's confusing Storm...? |
| 17:33.08 | jkakar | reidn: Usually in cases like that you need to add/commit one object before the other. |
| 17:34.38 | reidn | So, just more regular store.flush() ing? |
| 17:35.44 | reidn | Yep, looks like that was it. |
| 17:35.53 | reidn | Thanks jkajar. |
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| 17:36.31 | reidn | Just wanted to thank everyone involved in developing Storm, it really does rock hard. |
| 17:36.44 | reidn | Best ORM I've ever used, by far. |
| 17:38.11 | reidn | Has anyone attempted to write a SQL->skeleton base class generator, do we know? |
| 17:39.45 | jkakar | reidn: Thanks! |
| 17:40.23 | jkakar | reidn: Not that I know of... the "schema generation" topic has come up many times, you can find details in the mailing list archives... |
| 17:40.48 | jkakar | reidn: The short story is we'd like it to be possible to build schema generations tools for/with Storm, but we don't feel they belong in Storm itself. |
| 17:41.41 | reidn | Fair enough. Obviously schema generation is hard to get right. Or it's easy to get half-right, but difficult to get really right. |
| 17:42.20 | reidn | But class generation from an existing schema should hopefully be a bit easier, especially if the foreign keys are properly set up. |
| 17:42.23 | jkakar | reidn: Right. |
| 17:42.34 | jkakar | reidn: Yeah, it would be nice for sure. |
| 17:43.02 | jkakar | reidn: It just hasn't been a priority for the people that contribute to Storm. It would be nice to see something like that emerge, since it does come up from time to time. |
| 17:43.56 | reidn | Is that because the Launchpad schema mainly existed prior to the development of Storm? |
| 17:44.06 | reidn | Anyway, thanks heaps. |
| 17:47.52 | jkakar | reidn: Well, Storm was actually developed by the Landscape team. When we developed it we didn't have such a large set of schemas that the cost would be worth the benefit. |
| 17:48.08 | jkakar | reidn: In the Launchpad case, we built a SQLObject emulation layer which they used to switch to Storm. |
| 17:48.18 | jkakar | reidn: Since then, they've been slowly migrating to "pure" Storm. |
| 17:49.55 | reidn | Are you able to give some rough numbers on the sort of number of transactions handled by the Launchpad Storm? Just wondering about real world scalability... |
| 17:50.10 | reidn | Or do you have any massive Landscape deployments? |
| 17:50.30 | reidn | Understand completely if you can't release that sort of thing. |
| 17:53.49 | jkakar | reidn: Well, it's really hard to give numbers about "number of transactions handled by Storm" because it depends on the queries you run. :) |
| 17:54.08 | jkakar | reidn: Suffice it to say, that Launchpad is a big system with lots of users and it works... Landscape has some big deployments and it also works... |
| 17:54.46 | reidn | Thanks Jkakar |
| 17:54.52 | jkakar | reidn: We've found the performance problems we've had have rarely been due to problems in Storm and instead typically the result of poor application-level design and/or poorly performing queries. |
| 17:55.36 | jkakar | reidn: Also, are you using the C extensions? They provide quite a performance boost. |
| 17:55.44 | jkakar | reidn: If you're using 0.16 they should be enabled by default... |
| 17:56.16 | reidn | Hmmm, using the default packages in the Lucid beta... |
| 17:56.21 | reidn | <PROTECTED> |
| 17:56.50 | reidn | Nope, it's 0.15 still. |
| 17:56.54 | reidn | Is there a PPA? |
| 17:57.46 | reidn | Found it. |
| 17:59.38 | jkakar | Cool. |
| 17:59.39 | reidn | Thanks for that, I'll give 0.16 a go. |
| 17:59.58 | jkakar | reidn: Cool. Whenever I build new releases they get published to the PPA, so it's a good way to get the latest goodness. |
| 18:00.15 | reidn | I like that new ppa add syntax as well, very neat. |
| 18:00.32 | jkakar | I should probably make an 0.17 release, since it's been a while since we pushed out 0.16... but there haven't been a huge amount of changes. Some minor features and optimizations. |
| 18:00.47 | jkakar | reidn: Yeah, me too, it makes consuming packages from PPAs that much easier. |
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