Re:Twilio incident and Redis
by StavrosK on Wednesday July 24, 2013 @07:15PM
(#6099814)
The append-only file just... well... appends every command to a file. That's pretty solid, especially on journaled filesystems, so I can't find any durability-related reason why it shouldn't be used.
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The only durability "problems" I've ever been able to come up with for Redis involve human error as a key component, like what Twilio experienced here with the AOF/RDB mixup.
The new CONFIG REWRITE command makes it easier to avoid, but it would be nice if it were harder to get this wrong in the first place.
What it definitely isn't is fully ACIDic, though for some workloads you can get close if you use it very, very carefully.