Re: understanding partitions and # of nodes

2016-09-22 Thread Jens Rantil
By "partitions" I assume you refer to "partition keys". Generally, the more partitions keys, the better. Having more partition keys means your data generally is spread out more evenly across the cluster, makes repairs run faster (or so I've heard), makes adding new nodes more smooth, and makes it

Re: understanding partitions and # of nodes

2016-09-21 Thread Jeff Jirsa
It If you only have 100 partitions, then having more than (100 * RF) nodes doesn’t help you much. However, unless you’re using very specific partitioners, there’s no guarantee that you’ll have 1 partition per node (with 10 nodes / 10 partitions). Cassandra uses murmur3 hash (by default,