Re: confusion about nodetool cfstats

2015-09-11 Thread Otis Gospodnetić
It's a single node, metric value showing just a single moment in time. Something with historical data, aggregation across the whole cluster, etc. may be better. See SPM for Cassandra or OpsCenter - they come with out of the box reports for Cassandra. Otis -- Monitoring * Alerting * Anomaly

Re: confusion about nodetool cfstats

2015-09-10 Thread Chris Lohfink
All metrics reported in cfstats are for just the one node (its pulled from jmx). To see cluster aggregates its best to use a tool for monitoring like opscenter, graphite, influxdb, nagios etc. Its a good idea to have one of these something like this setup for many reasons anyway. If you are using

confusion about nodetool cfstats

2015-09-10 Thread Shuo Chen
Hi! I want to monitor columnfamily space used with nodetool cfstats. The document says, Space used (live), bytes:9592399Space that is measured depends on operating system

Re: confusion about nodetool cfstats

2015-09-10 Thread Shuo Chen
Sorry to send the previous message. I want to monitor columnfamily space used with nodetool cfstats. The document says, Space used (live), bytes:9592399Space that is measured depends on operating system Is this metric shows space used on one nodes or on the whole cluster? If it is just one