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From Kanwar Sangha <kan...@mavenir.com>
Subject Replication Question
Date Mon, 04 Mar 2013 20:53:36 GMT
Hi - If I configure a RF across 2 Data centres as below  and assuming 3 nodes per Data centre.

DC1: 2, DC2:2

I do a write with consistency level - local_quorum which ensures that there is no inter DC
latency. Now say 2 nodes in DC1 crash and I am doing a read with CL = One. Will it return
failure to client since the data is now only present in DC2 ? So  I would need to do a read
with CL = ALL/EACH_QUORUM to ensure that I always get the data even in case of crashes in
the local DC ?

Thanks,
Kanwar



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