What's your definition of "sync"? Streaming all the existing data to the
new DC? or the time lag between a write request is completed in one DC
and the other DC?
The former can be estimated based on a few facts about your setup
(number of nodes, data size, etc.) and some measured data (streaming speed).
The latter is usually just slightly above the network latency, but can
spike up if and when the network between DCs suffer from temporary
connectivity issues.
On 23/09/2022 15:58, Kaushal Shriyan wrote:
Hi,
Is there a way to measure cassandra nodes data sync time between DC1
and DC2? Currently DC1 is the prod datacenter. I am adding DC2 to the
new data center by referring to
https://docs.apigee.com/private-cloud/v4.51.00/adding-data-center?hl=en.
https://docs.apigee.com/release/supported-software
Cassandra version :- 2.1.22
Is there a way to measure the time taken to sync the data in current
prod DC1 (Cassandra Node 1, 2 ,3) and the new DC2 (Cassandra Node 4, 5
,6)?
Thanks in advance.
Best Regards,
Kaushal
