Are you sure you’re blocked on internode and not commitlog? Batch is typically
not what people expect (group commitlog in 4.0 is probably closer to what you
think batch does).
--
Jeff Jirsa
> On Nov 27, 2018, at 10:55 PM, Yuji Ito wrote:
>
> Hi,
>
> Thank you for the reply.
> I've
Hi,
Thank you for the reply.
I've measured LWT throughput in 4.0.
I used the cassandra-stress tool to insert rows with LWT for 3 minutes on
i3.xlarge and i3.4xlarge
For 3.11, I modified the tool to support LWT.
Before each measurement, I cleaned up all Cassandra data.
The throughput in 4.0 is 5
Inter-node messaging is rewritten using Netty in 4.0. It will be better to
test it using that as potential changes will mostly land on top of that.
On Mon, Nov 26, 2018 at 7:39 AM Yuji Ito wrote:
> Hi,
>
> I'm investigating LWT performance with C* 3.11.3.
> It looks that the performance is
Hi,
I'm investigating LWT performance with C* 3.11.3.
It looks that the performance is bounded by messaging latency when many
requests are issued concurrently.
According to the source code, the number of messaging threads per node is
only 1 thread for incoming and 1 thread for outbound "small"
