Appreciate the responses. Since posting I've tried running up to 8 vnodes on this same physical machine. Even with 8 the machine is under virtually no load when I have as many loaders as possible running so it could be this sort of hardware isn't a good candidate for a riak node.
Adding more vnodes does allow me to fire up more loaders, but as soon as I cross the 4-5 loader mark on any specific node it stops responding for a few seconds. I think I got it up to about 1600 inserts/sec at peak with 8 nodes and a couple dozen loaders running. It could also be that I am just trying to fit a workload on Riak that isn't suitable. On this same machine with a single untuned Cassandra node I can get about 15,000 inserts/sec using the exact same input data and when that thing runs I can see the disks getting pounded and the CPU spiking. Cassandra lacks a map reduce interface though so it isn't as appealing. I may stick with a multiple datastore approach on this particular project. -- View this message in context: http://riak-users.197444.n3.nabble.com/Bulk-loading-data-and-Could-not-contact-Riak-Server-error-tp3217091p3223728.html Sent from the Riak Users mailing list archive at Nabble.com. _______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
