| 00:14.57 | *** join/#storm MattCampbell (n=matt@adsl-75-41-35-197.dsl.wchtks.sbcglobal.net) |
| 00:17.41 | MattCampbell | How feasible would it be to write a Storm backend for Google App Engine's data store? Or in other words, how strongly is Storm tied to SQL and the Python DB API? |
| 00:27.16 | jkakar | MattCampbell: cr3 (not in the channel at the moment) wrote a Salesforce backend for Storm, which doesn't use SQL or DB-API. |
| 00:27.45 | radix | jkakar: actually, it uses something that's pretty s imilar to SQL |
| 00:27.57 | jkakar | MattCampbell: Salesforces does provide an SQL-like syntax, though. OQL? |
| 00:28.01 | jkakar | radix: Right. |
| 00:28.28 | jkakar | MattCampbell: Does AppEngine provide an SQL-like interface? |
| 00:34.20 | MattCampbell | GQL seems SQL-like on first glance |
| 00:58.18 | jkakar | MattCampbell: Nice, then you probably have a good chance of making Storm work with it. |
| 00:59.02 | jkakar | MattCampbell: cr3 isn't around right now, and I don't know the state of his Salesforce backend, but when I see him I'll ask him if he's able to make the code public, so that you can have non-SQL example code to work from. |
| 01:19.25 | rockstar | jkakar, hey |
| 01:19.44 | rockstar | I'm getting this on previously working code: |
| 01:19.47 | rockstar | <PROTECTED> |
| 01:19.47 | rockstar | <PROTECTED> |
| 01:19.47 | rockstar | exceptions.TypeError: connect() takes exactly 1 argument (2 given) |
| 01:20.24 | jkakar | rockstar: Heyas... hrm, that's weird. |
| 01:20.45 | jkakar | rockstar: That code is from Entertainer, right? |
| 01:20.49 | rockstar | jkakar, it doesn't look like my code broke. |
| 01:21.09 | rockstar | jkakar, yea. I was just about ready to integrate that work. |
| 01:21.11 | jkakar | rockstar: The bit that gets a connection, checks to see if a schema is in place, and, if not, puts one in place? |
| 01:21.18 | rockstar | jkakar, I think the breakage happened with Jaunty. |
| 01:21.38 | rockstar | jkakar, yes. |
| 01:21.43 | jkakar | looks at some Storm code... |
| 01:22.30 | rockstar | jkakar, if there's a better way to do that, I'm all for it. |
| 01:23.12 | rockstar | jkakar, here's the full exception: http://pastebin.ubuntu.com/161058/ |
| 01:23.42 | jkakar | rockstar: What version of Storm do you have? |
| 01:24.26 | rockstar | jkakar, storm 0.14 |
| 01:24.33 | jkakar | rockstar: Hrm, that's the latest version. |
| 01:24.47 | jkakar | rockstar: Based on what I see in trunk, your call *should* work. |
| 01:24.58 | rockstar | jkakar, :( |
| 01:25.08 | jkakar | rockstar: The database object your calling connect on comes from the storm.database module, right? |
| 01:25.24 | rockstar | jkakar, create_database, in fact. |
| 01:25.40 | jkakar | rockstar: Which backend are you using? |
| 01:25.51 | rockstar | Basically, something to the effect of Store(create_database('sqlite:')) |
| 01:26.11 | jkakar | Okay, that's totally the right way to do that. |
| 01:26.44 | rockstar | Yea, so this code used to work, and I think it stopped working on the Jaunty upgrade. |
| 01:27.05 | jkakar | rockstar: Can you fire a python2.6 interpreter, import storm and print storm.version, please? Is that what you did to determine you're running 0.14? |
| 01:27.22 | jkakar | rockstar: I'm remembering someone saying the storm package in jaunty is actually 0.12. |
| 01:27.33 | rockstar | jkakar, that's how I got the version before. |
| 01:27.34 | rockstar | In [2]: storm.version |
| 01:27.35 | rockstar | Out[2]: '0.14' |
| 01:27.40 | jkakar | rockstar: Crap. |
| 01:28.27 | rockstar | jkakar, apt-cache show says: Version: 0.14-0ubuntu2 |
| 01:28.51 | jkakar | rockstar: Does the connect function in storm/database.py:353 take an event kwarg? |
| 01:31.09 | rockstar | jkakar, event=None |
| 01:31.15 | rockstar | jkakar, wtf? |
| 01:31.38 | jkakar | It looks like the function signature for connect was last changed on 2008-11-04. |
| 01:31.52 | jkakar | You can see the diff in trunk with: bzr cdiff -r 277..278|less |
| 01:32.03 | rockstar | Yes, but even if it was changed, it still can take 2 arguments. |
| 01:32.28 | jkakar | rockstar: Exactly, that's why I'm confused and trying to figure out if it's an environment problem... it doesn't sound like it. |
| 01:32.34 | jkakar | rockstar: What happens when you run the tests with python2.5? |
| 01:36.30 | rockstar | jkakar, same thing. |
| 01:36.53 | rockstar | jkakar, so, I can put an pdb.set_trace() in that method, and it gets inside. |
| 01:38.53 | jkakar | rockstar: WTF? |
| 01:39.02 | rockstar | jkakar, yeah... |
| 01:39.04 | jkakar | rockstar: How come you always find these bizarre issues? ;) |
| 01:39.51 | jkakar | rockstar: I'm not really sure what to suggest, I'm afraid. The thing happening to you just shouldn't. |
| 01:39.58 | rockstar | jkakar, I dunno. |
| 01:41.20 | jkakar | rockstar: If you put a pdb.set_trace in storm.store.Store._init__ just before database.connect is called, what kind of object is database? |
| 01:43.34 | rockstar | jkakar, (Pdb) p database |
| 01:43.35 | rockstar | <storm.databases.sqlite.SQLite object at 0x40169d0> |
| 01:43.48 | jkakar | Exactly what it should be. Crap. |
| 01:43.57 | rockstar | (Pdb) p self._event |
| 01:43.57 | rockstar | <storm.event.EventSystem object at 0x40741d0> |
| 01:43.59 | jkakar | :( |
| 01:44.14 | jkakar | What happens if you call database.connect(self._event) manually? Same traceback? |
| 01:44.39 | rockstar | It works? |
| 01:45.04 | jkakar | Do you ever create more than one Store in your application? |
| 01:45.15 | jkakar | ie: is it working now, but blowing up when a different Store is being created? |
| 01:45.41 | rockstar | jkakar, well, right now they are just unittests, and each one gets its own database file. So it's one database per store. |
| 01:46.08 | jkakar | rockstar: Okay, so there shouldn't be anything weird going on there. |
| 01:46.44 | rockstar | jkakar, so I've verified with another entertainer dev that it's happening on his system as well. |
| 01:46.46 | jkakar | rockstar: Does the application code being tested work despite the test failure? |
| 01:48.18 | rockstar | jkakar, it's actually not integrated into the application yet. That's the part I was going to start writing. |
| 01:48.51 | jkakar | rockstar: I see. |
| 01:49.57 | jkakar | rockstar: I think the best thing I can suggest is to ask if you can create a small example that reproduces the problem so that one of us can dig deeper and figure out WTF is going on. |
| 01:50.14 | rockstar | jkakar, yeah, doing that now actually. |
| 01:50.18 | jkakar | rockstar: Ta. |
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