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 DSE you can use the performance service to get some of the metrics (including aggregates across dc, keyspace, cluster etc) from CQL. Chris Lohfink On Thu, Sep 10, 2015 at 9:38 PM, Shuo Chen <chenatu2...@gmail.com> wrote: > 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 node, is there a method to retrieve load info on the > whole cluster? > > ---- > Shuo Chen > > > On Fri, Sep 11, 2015 at 10:36 AM, Shuo Chen <chenatu2...@gmail.com> wrote: > >> 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 >> > >
