Re: How to measure data transfer between data centers?

I had the same requirement and modified iptraf to log traffic every second. https://github.com/hobinyoon/iptraf-3.0.0.git Hobin On Thu, Dec 5, 2013 at 2:17 AM, Jason Wee wrote: > Hi, > > Will it be simpler to just measure the network interface of the node > instead? > > /Jason > > > On Thu, D

Re: Huge multi-data center latencies

since the server already knows which DC it belongs to, it would be nice that it can just specify local DC without giving actual names. Hobin On Sat, Oct 19, 2013 at 5:18 PM, Hobin Yoon wrote: > I am experiencing huge latencies with a multi-data center Cassandra > cluster. With consistency

Huge multi-data center latencies

I am experiencing huge latencies with a multi-data center Cassandra cluster. With consistency level ONE, I expected almost the same latency with the single data center setup. What could possibly affect the latency in multi-data center setup? multi-DC setup min max avg (ms) 1 969 164.554264 single