What was the RF before adding nodes? Sent from my iPhone
On 04 Apr 2013, at 15:12, Anand Somani <meatfor...@gmail.com> wrote: > We are using a single process with multiple threads, will look at client side > delays. > > Thanks > > On Wed, Apr 3, 2013 at 9:30 AM, Tyler Hobbs <ty...@datastax.com> wrote: > If I had to guess, I would say that your client is the bottleneck, not the > cluster. Are you inserting data with multiple threads or processes? > > > On Wed, Apr 3, 2013 at 8:49 AM, Anand Somani <meatfor...@gmail.com> wrote: > Hi, > > I am running some tests trying to scale out our application from using a 3 > node cluster to 6 node cluster. The thing I observed is that when using a 3 > node cluster I was able to handle abt 41 req/second, so I added 3 more nodes > thinking it should close to double, but instead it only goes upto bat 47 > req/second!! I am doing something wrong and it is not obvious, so wanted some > help in what stats could/should I monitor to tell me things like if a node > has more requests or if the load distribution is not random enough? > > Note I am using direct thrift (old code base) and cassandra 1.1.6. The data > model is for storing blobs (split across columns) and has around 6 CF, RF=3 > and all operations are at quorum. Also at the end of the run nodetool ring > reports the same data size. > > Thanks > Anand > > > > -- > Tyler Hobbs > DataStax >
