You don’t don’t have enough memory. That’s just a start.

--
Rahul Singh
rahul.si...@anant.us

Anant Corporation

On Feb 18, 2018, 6:29 AM -0500, onmstester onmstester <onmstes...@zoho.com>, 
wrote:
> I've configured a simple cluster using two PC with identical spec:
>  cpu core i5
>   RAM: 8GB ddr3
>   Disk: 1TB 5400rpm
>   Network: 1 G (I've test it with iperf, it really is!)
>
> using the common configs described in many sites including datastax itself:
> cluster_name: 'MyCassandraCluster'
> num_tokens: 256
> seed_provider:
>  - class_name: org.apache.cassandra.locator.SimpleSeedProvider
>    parameters:
>         - seeds: "192.168.1.1,192.168.1.2"
> listen_address:
> rpc_address: 0.0.0.0
> endpoint_snitch: GossipingPropertyFileSnitch
>
> Running stress tool:
> cassandra-stress write n=1000000 -rate threads=1000 -mode native cql3 -node 
> 192.168.1.1,192.168.1.2
>
> Over each node it shows 39 K writes/seconds, but running the same stress tool 
> command on cluster of both nodes shows 45 K writes/seconds. I've done all the 
> tuning mentioned by apache and datastax. There are many use cases on the net 
> proving Cassandra linear Scalability So what is wrong with my cluster?
>
> Sent using Zoho Mail
>
>

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