Hi,
I'm trying to evaluate performance of Apache Cassandra V4.0.1 for write-only
workloads using on-premise physical servers.
On a single node cluster, doing some optimizations i was able to make CPU of
node >90%, throughput is high enough and CPU is the bottleneck as i expected.
Then doing
How many clients do you have sending write requests? In several cases I've
worked on, the bottleneck is on the client side.
Try increasing the number of app instances and you might find that the
combined throughput increases significantly. Cheers!
Thanks,
I've got only one client, 10 threads and 1K async writes, This single client
was able to send 110K insert/seconds to single node cluster but its only
sending 90K insert/seconds to the cluster with 2 nodes(client CPU/network usage
is less than 20%)
Sent using https://www.zoho.com/mai
Hi,
Anyone measured impact of wire encryption using TLS
(client_encryption/server_encryption) on cluster latency/throughput?
It may be dependent on Hardware or even data model but I already did some sort
of measurements and got to 2% for client encryption and 3-5% for client +
server encry
The 3-5% penalty range is consistent with what other users have reported
over the years but I'm sorry that I can't seem to find the
threads/references so my response is unfortunately anecdotal.
More importantly, would you be interested in sharing your data? It would be
great to feature it as a blo
