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The most interesting part of this post to me is the implication that despite a lot of noise about Twitter switching to Cassandra, they haven't actually done it
by seldo 16y ago
The most interesting part of this post to me is the implication that despite a lot of noise about Twitter switching to Cassandra, they haven't actually done it yet -- if they had, they'd need snowflake in production, and they say that it's not.
- jedberg 16y agoThey have a large Cassandra node which they are using for some of their data, but it is not the primary datastore yet. Much like how we (reddit) are using it for a chunk of our data, but we still have Postgres as our canonical source. We are however moving slowly towards more Cassandra.
- kingryan 16y agoIt turns out big problems are big. We're moving moving existing data to cassandra and putting a lot of new (mostly internal) data on cassandra.
- seldo 16y agoI didn't mean to imply that it was easy, merely that I'd got the impression from presentations that the migration had already happened.