Amir,
I'll add one more major consideration to Ryan's excellent list, check your
network for TCP Incast. Every cluster at reasonable scale will have to manage
this issue carefully, 20 nodes is more than enough to create this kind of
problem (I see it with as few as 9). Here's more information
Amir,
Are you using one node to run basho bench? If so, have you tried running
multiple basho bench instances on separate nodes (or tried other benchmark
tools)? There could be many reasons for your plateau but I would first
rule out that your not maxing out the basho bench instance or the node
I hate to use your post as an example, Amir, but your post is a perfect example
of "according to my benchmark your product did not meet my performance
expectations; oh ya, I'm not gonna tell you anything about the benchmark or the
environment I was running in." Everybody, please stop doing that.
Hi there,
I have done a scalability benchmark for Riak DBMS and we couldn't scale up
the throughput beyond 20 Riak nodes. The benchmarking with Basho_Bench has
been run on a 31 node cluster and each node has its own hard disk but the
maximum throughput is on 20 nodes.
I’d like to understand why R
