Here is the use case ... The Cassandra ring is going to span 6 data centers. The client can write in any data center (the client is also in 6 DCs) and turn back around and read from any other data center for this I assume you will tell me to use each quorum for the writes, however that is going to increase the time it takes for writes to be acknowledged.
What I am looking for is a way to monitor either using some statistic exposed by Cassandra or using some sort of synthetic transaction of how my Cassandra replication looks and alert if there is slowness noticed. Rahul Neelakantan > On Jul 29, 2014, at 8:53 PM, Robert Coli <rc...@eventbrite.com> wrote: > >> On Tue, Jul 29, 2014 at 3:15 PM, Rahul Neelakantan <ra...@rahul.be> wrote: >> Does anyone know of a way to measure/monitor WAN replication latency for >> Cassandra? > > No. [1] > > =Rob > > [1] There are ways to do something like this task, but you probably don't > actually want to do them. Trying to do them suggests that you are relying on > WAN replication timing for your application, which is something you almost > certainly do not want to do. Why do you believe you have this requirement?
