You will get an error back . Also use RF:3 for the high availability in one DC.


On Mon, May 6, 2013 at 7:05 AM, Kanwar Sangha <kanwar@mavenir.com> wrote:

Anyone ?

 

From: Kanwar Sangha [mailto:kanwar@mavenir.com]
Sent: 03 May 2013 08:59
To: user@cassandra.apache.org
Subject: local_quorum

 

Hi – I have 2 data centres (DC1 and DC2) and I have local_quorum set as the CL for reads. Say there is a RF factor = 2. (so 2 copies each in DC).

 

If both nodes which own the data in DC1 are down and I do a read with CL as “local_quorum” , will I get an error back to the application ? or will Cassandra do automatic routing to the other DC ?

 

Thanks,

Kanwar