capacitor 1.0.0
Instead of making ActiveRecord calls to change a counter field, write them to capacitor. They'll get summarized in a redis hash, with a separate process batch-retrieving and writing to ActiveRecord. Being single-threaded, the writing process avoids row lock collisions, and absorbs traffic spikes by coalescing changes to the same row into one DB write.
Gemfile:
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install:
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Versions:
- 1.0.0 - September 30, 2013 (11.5 KB)