Re: All nodes hosting replicas down

And I’m not aware of any case where it’s a good idea to use SimpleStrategy in Prod (be interested to hear if anyone else knows of one). NetworkTopologyStrategy behaves the same as SimpleStrategy in the basic case of one DC and Rack but gives you a good path to migrate to more sophisticated

Re: All nodes hosting replicas down

For sensitive data, I'd recommend to use at least RF=3. Especially if you plan to use CL QUORUM, for example if you want to ensure consistency. If you use QUORUM and RF=2 then a single failing node will make your data unavailable. For more information, please read

Re: All nodes hosting replicas down

Thank you so much for answer. So, in case of a high failure rate in my cluster, i have to increase the replication factor or i have to use NetworkToplogy Strategy ? That's it ? Kindly. 2016-12-18 20:23 GMT+01:00 Matija Gobec : > If you are reading and none of the

Re: All nodes hosting replicas down

If you are reading and none of the replicas is online you will get an exception on the read (tried x replicas but 0 responded) and your read will fail. Writes on the other hand are going to go through only if your write consistency is ANY. If your write consistency is ONE or anything upwards, then

All nodes hosting replicas down

Hi, Please, if we choose a replication factor =2 (simple strategy), so, we have two replicas of data on the ring. What happen in the case of all nodes containing replicas are down ? Thank you so much for help. Kind regards.