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Why Discord Moved from MongoDB to Apache Cassandra, Let us Discuss

The Backend Engineering Show with Hussein Nasser

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Mongodib Rid - What's the Problem?

In november 20, fifteenth im coring, we reached hundred million stored messages. And at the this time we started to see their expected issues appearing. They were creating insane number of indexes. Dd, scus does not do well when you write and need to update many, many indexes. Each index points to the table directly, and you have to just thrashes everything. Doesn't mean that poscus is bad. So mongodybe here is the same thing. If this work for for discord does not, that does not mean mongo d b is a bad data bas ye. i have criticised mungode b many times on this channel for certain design choices

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