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| 17:45.36 | webm0nk3y | has using memecached for caching in storm ever been considered? |
| 17:47.34 | mikex2 | webm0nk3y: Exists cache in storm? |
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| 17:49.24 | webm0nk3y | mikex2, storm keeps a limited cache of recently used objects |
| 17:50.25 | jkakar | webm0nk3y: stub was talking about it for a while, but I don't know of anyone that's done anything about it. |
| 17:50.51 | webm0nk3y | jkakar, do you know if there were issues blocking this idea? |
| 17:51.33 | webm0nk3y | jkakar, it would be interesting to allow the GenerationalCache to be a remote memcache |
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| 17:55.00 | webm0nk3y | __lucio__, the cache in storm is really just something to keep objects on a single thread from being dealocated when they aren't referenced anymore. |
| 17:55.50 | __lucio__ | webm0nk3y, thats what i would expect, yes :) |
| 17:57.10 | webm0nk3y | __lucio__, it may be possible to have store._alive use memcached and mark them as invalidated when they are updated |
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| 18:30.57 | jkakar | webm0nk3y: That's what stub was suggesting, I believe. |
| 18:31.19 | jkakar | webm0nk3y: I don't think any progress was made. I don't know if there were any blockers discovered. |
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| 19:10.02 | therve | webm0nk3y: it's probably not *really* hard |
| 19:17.23 | webm0nk3y | therve, i guess the biggest issue with us would be what would it get us given that what we are developing is such a distributed system |
| 19:17.32 | webm0nk3y | __lucio__, have you considered that ^^^ |
| 19:18.09 | __lucio__ | webm0nk3y, i dont follow. what do you mean? |
| 19:19.04 | webm0nk3y | __lucio__, we have servers in the datacenter and AMIs that will all need to talk to the memcache |
| 19:19.50 | __lucio__ | webm0nk3y, they may each have their own cache |
| 19:20.38 | webm0nk3y | __lucio__, how will each cache learn of changes made by other storm stores? |
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| 19:22.08 | __lucio__ | webm0nk3y, each store will issue a change notification thru the message queue |
| 19:24.43 | webm0nk3y | hmm |
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| 22:12.21 | mwhudson | hello |
| 22:12.42 | mwhudson | i have a ReferenceSet |
| 22:12.57 | mwhudson | i want to delete all the rows from it |
| 22:13.05 | mwhudson | <PROTECTED> |
| 22:13.06 | mwhudson | <PROTECTED> |
| 22:13.06 | mwhudson | <PROTECTED> |
| 22:13.15 | mwhudson | should self.instructions.clear() work? |
| 22:13.26 | mwhudson | it raises some odd error about needing a store |
| 22:13.51 | therve | I suspect self.instructions.find().remove() is going to be better |
| 22:13.59 | therve | clear() is kind of odd |
| 22:14.50 | therve | although an exception about store is not expected |
| 22:16.09 | mwhudson | the signature of clear certainly surprised me :-) |
| 22:18.24 | therve | in a case of a direct ReferenceSet, clear() just reset the id in the foreign table, but doesn't remove the rows |
| 22:18.44 | therve | most of the time it fails because the key has a NOT NULL constraint :) |
| 22:19.02 | mwhudson | ah |
| 22:20.07 | mwhudson | same |
| 22:20.08 | mwhudson | <PROTECTED> |
| 22:20.08 | mwhudson | <PROTECTED> |
| 22:20.08 | mwhudson | <PROTECTED> |
| 22:20.10 | mwhudson | <PROTECTED> |
| 22:20.12 | mwhudson | NoStoreError: Can't perform operation without a store |
| 22:21.11 | mwhudson | therve: ? |
| 22:21.32 | therve | hum. |
| 22:22.14 | therve | I've never seen that |
| 22:22.48 | mwhudson | i also noticed that we don't use referenceset at all in launchpad |
| 22:22.49 | therve | how do you get "self" ? |
| 22:23.19 | mwhudson | hm |
| 22:23.34 | therve | even the sqlobject compatibility thing? |
| 22:23.44 | therve | SQLMultipleJoin ? |
| 22:23.54 | mwhudson | i think we probably use that |
| 22:24.22 | mwhudson | therve: it's possible that self is a not-yet-in-the-database object |
| 22:24.31 | therve | that would explain it :) |
| 22:25.38 | mwhudson | hm |
| 22:25.54 | mwhudson | oh maybe it's not even added to a store yet |
| 22:26.25 | mwhudson | grarareraedas |
| 22:26.40 | mwhudson | now of course i have the problem that it's not completely constructed |
| 22:26.47 | mwhudson | so i get not-null errors trying to flush it |
| 22:26.52 | mwhudson | hm |
| 22:27.18 | mwhudson | therve: is there an easy way to say "is this object added to a store yet" ? |
| 22:27.28 | mwhudson | i guess Store.of(self) is not None? |
| 22:27.38 | therve | mwhudson: yep |
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