Re: understanding partitions

2016-09-23 Thread Firdousi Farozan
Hi, One more thing to consider is wide partition. Even though theoretically Cassandra supports wide rows, practical limit is max 100 MB per partition. So based on your use-case and model, you may have to split the data into partitions so that wide partitions are not created. Regards, Firdousi

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
assandra.apache.org> Date: Wednesday, September 21, 2016 at 2:40 PM To: "user@cassandra.apache.org" <user@cassandra.apache.org> Subject: understanding partitions and # of nodes Hello, If you have a 10 node cluster, how does having 10 partitions or 100 partitions change h

understanding partitions and # of nodes

2016-09-21 Thread S Ahmed
Hello, If you have a 10 node cluster, how does having 10 partitions or 100 partitions change how cassandra will perform? With 10 partitions you will have 1 partition per node. WIth 100 partitions you will have 10 partitions per node. With 100 partitions I guess it helps because when you add

understanding partitions

2016-09-21 Thread S Ahmed
Hello, If you have a 10 node cluster, how does having 10 partitions or 100 partitions change how cassandra will perform? With 10 partitions you will have 1 partition per node. WIth 100 partitions you will have 10 partitions per node. With 100 partitions I guess it helps because when you add