Map/Reduce, MySQL & Drizzle

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Dec. 5th, 2008 | 03:17 pm

Something very cool, is coming very soon, for both MySQL and Drizzle :)


mysql> SELECT gman_do("reverse", "does this work?") AS test;
+-----------------+
| test |
+-----------------+
| ?krow siht seod |
+-----------------+


This is part of the huge amounts of efforts we have going on with Drizzle and the wider set of projects that we are working on (and mad props go to Eric Day for the above example UDF work for MySQL).

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Comments {6}

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from: anonymous
date: Dec. 6th, 2008 12:49 am (UTC)
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Would be interested in knowing what real world use this function has?

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Brian "Krow" Aker

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from: [info]krow
date: Dec. 6th, 2008 12:52 am (UTC)
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This is an example of us sending a set of data out to Gearman, and getting the results back.

We could flipped an image as well... or sent data off to be updated in memcached/apache/etc.

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(no subject)

from: anonymous
date: Dec. 6th, 2008 08:07 pm (UTC)
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Isn't that what the application tier is for? I thought Drizzle was about lean, mean and scalable?

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Brian "Krow" Aker

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from: [info]krow
date: Dec. 6th, 2008 09:33 pm (UTC)
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It is, that is why we are shoving the work off to it :)

Drizzle, the kernel doesn't do jack in this area (really... nothing). We can let you connect to whatever you like. In the above case, Drizzle is sending data off to be processed via Gearman servers. We can take results... but all that logic? It is elsewhere.

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(no subject)

from: anonymous
date: Dec. 12th, 2008 08:41 pm (UTC)
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this is very cool -- i can think of lot's of scenarios, where this would be very useful! but i wonder how fast this can be, if you do this for "lots" of rows?

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Brian "Krow" Aker

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from: [info]krow
date: Dec. 12th, 2008 11:33 pm (UTC)
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If we pipe together a bunch of rows for an aggregate query? It should be good, but we do not know yet.

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