Re: Cassandra performance and read/write latency

2010-07-06 Thread Peter Schuller
> Has anyone else seen nodes "hang" for several seconds like this?  I'm > not sure if this is a Java VM issue (e.g. garbage collection) or something Since garbage collection is logged (if you're running with default settings etc), any multi-second GC:s should be discoverable in said log. So for te

Cassandra performance and read/write latency

2010-07-06 Thread Peter Fales
Greetings Cassandra Developers! We've been trying to benchmark Cassandra performance and have developed a test client written in C++ that uses multiple threads to send out a large number of write and read requests (as fast as the server can handle them). One of the results we're seeing is a