thank you Jeff, it makes more sense now. How about I write with ONE consistency, replication factor = 3 and read consistency is QUORUM. I am guessing in that case, I will not have the empty read even if it is happened immediately after the write request, let me know your thoughts ?
Cheers, Anurag On Sat, Jul 15, 2023 at 7:28 PM Jeff Jirsa <jji...@gmail.com> wrote: > Consistency level controls when queries acknowledge/succeed > > Replication factor is where data lives / how many copies > > If you write at consistency ONE and replication factor 3, the query > finishes successfully when the write is durable on one of the 3 copies. > > It will get sent to all 3, but it’ll return when it’s durable on one. > > If you write at ONE and it goes to the first replica, and you read at ONE > and it reads from the last replica, it may return without the data: you > may not see a given write right away. > > > On Jul 15, 2023, at 7:05 PM, Anurag Bisht <bisht.anurag...@gmail.com> > wrote: > > > > > > Hello Users, > > > > I am new to Cassandra and trying to understand the architecture of it. > If I write to ONE node for a particular key and have a replication factor > of 3, would the written key will get replicated to the other two nodes ? > Let me know if I am thinking incorrectly. > > > > Thanks, > > Anurag >
