Re: Inter Data Center Latency calculation of a Multi DC cluster running in AWS

[Erick Ramirez]

>
> For the metrics
> "org.apache.cassandra.metrics:name=[DC]-Latency,type=Messaging" which is
> the unit of the metrics?
>

They're in milliseconds:

        timer.update(timeTaken, TimeUnit.MILLISECONDS);
        crossNodeLatency.update(timeTaken, TimeUnit.MILLISECONDS);

See
https://github.com/apache/cassandra/blob/cassandra-3.11.8/src/java/org/apache/cassandra/metrics/MessagingMetrics.java#L48-L58
for details. Cheers!