Thanks Peter. I believe...I found the root cause. Switch that we used was bad. Now on a 4 node cluster ( Each Node has 1 CPU - Quad Core and 16 GB of RAM), I was able to get around 11,000 writes and 10,050 reads per second simultaneously (CPU usage is around 45% on all nodes. Disk queue size is in the neighbourhood of 10)
Is this inline with what you usually see with Cassandra? ----- Original Message ----- From: Peter Schuller To: user@cassandra.apache.org Sent: Friday, April 29, 2011 12:21 PM Subject: Re: Performance tests using stress testing tool > Thanks Peter. I am using java version of the stress testing tool from the > contrib folder. Is there any issue that should be aware of? Do you recommend > using pystress? I just saw Brandon file this: https://issues.apache.org/jira/browse/CASSANDRA-2578 Maybe that's it. -- / Peter Schuller
