munin is the simplest thing. There are numerous JMX stats of interest. As a symmetric distributed system, you should not expect to monitor Cassandra like you would a web server. Intelligent clients use connection pools and react to current node behavior in making choices of where to send requests, including using describe_ring to discover nodes and open new connections as needed.
On Sat, Aug 28, 2010 at 11:29 AM, Mark <static.void....@gmail.com> wrote: > On 8/28/10 11:20 AM, Benjamin Black wrote: >> >> no and no. >> >> On Sat, Aug 28, 2010 at 10:28 AM, Mark<static.void....@gmail.com> wrote: >>> >>> I will be loadbalancing between nodes using HAProxy. Is this >>> recommended? >>> >>> Also is there a some sort of ping/health check uri available? >>> >>> Thanks >>> > Also, what would be a good way of monitoring the health of the cluster? >