>
> The most important things to note:
> - don't include JNA (it needs to lock pages larger than what will be
> available)
> - turn down threadpools for transports
> - turn compaction throughput way down
> - make concurrent reads and writes very small
> I have used the above run a healthy 5 node clusters locally in it's own
> private network with a 6th monitoring server for light to moderate local
> testing in 16g of laptop ram. YMMV but it is possible.
Thanks!! That was very helpful. I just tried applying your suggestions to
my cassandra.yaml file. I used the info from your chef recipe. Well like
I've been saying typically it takes about 5 hours or so for this situation
to shake itself out. I'll provide an update to the list once I have a
better idea of how this is working.
Thanks again!
Tim
On Fri, Feb 20, 2015 at 9:37 PM, Nate McCall <n...@thelastpickle.com> wrote:
> I frequently test with multi-node vagrant-based clusters locally. The
> following chef attributes should give you an idea of what to turn down in
> cassandra.yaml and cassandra-env.sh to build a decent testing cluster:
>
> :cassandra => {'cluster_name' => 'VerifyCluster',
> 'package_name' => 'dsc20',
> 'version' => '2.0.11',
> 'release' => '1',
> 'setup_jna' => false,
> 'max_heap_size' => '512M',
> 'heap_new_size' => '100M',
> 'initial_token' => server['initial_token'],
> 'seeds' => "192.168.33.10",
> 'listen_address' => server['ip'],
> 'broadcast_address' => server['ip'],
> 'rpc_address' => server['ip'],
> 'conconcurrent_reads' => "2",
> 'concurrent_writes' => "2",
> 'memtable_flush_queue_size' => "2",
> 'compaction_throughput_mb_per_sec' => "8",
> 'key_cache_size_in_mb' => "4",
> 'key_cache_save_period' => "0",
> 'native_transport_min_threads' => "2",
> 'native_transport_max_threads' => "4",
> 'notify_restart' => true,
> 'reporter' => {
> 'riemann' => {
> 'enable' => true,
> 'host' => '192.168.33.51'
> },
> 'graphite' => {
> 'enable' => true,
> 'host' => '192.168.33.51'
> }
> }
> },
>
> The most important things to note:
> - don't include JNA (it needs to lock pages larger than what will be
> available)
> - turn down threadpools for transports
> - turn compaction throughput way down
> - make concurrent reads and writes very small
>
> I have used the above run a healthy 5 node clusters locally in it's own
> private network with a 6th monitoring server for light to moderate local
> testing in 16g of laptop ram. YMMV but it is possible.
>
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