Thursday, July 3, 2014

Having fun with Redis Replication between Amazon and Rackspace

At 3scale we are in love with Redis, as much in love as one can be with a piece of software, which turns out to be a lot.

We have been running Redis in production for about 3 years by now. Overall, it has been a joy. Redis is fast, it is reliable, and what’s more important for a high-throughput backend like ours, it delivers a consistent performance. Unlike other data-stores in our tech stack (MySQL and Cassandra) the query latency is very predictable: 10ms is always 10ms all the way, not a random number between 1ms and 100ms depending on who knows what.

Needless to say that we have had some problems with Redis but they were always our fault. The last issue we have had is not an exception, however, we believe it’s worth sharing

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