Is Two Phase commit used in C* ?
If so.......what is the purpose of using it and what is the importance of 2 phase commit in C* Data Modeling?
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[EDITED] If you read Chapter 1 of Jeff Carpenter's book you quoted in your comment, you will realise that two-phase commits do not scale and blocks writes so they are a bad idea for databases like Cassandra.
Systems which use two-phase commits do not perform well in high-velocity workloads so it is not relevant in Cassandra. Cheers!
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