On Mon, Aug 24, 2015 at 4:03 PM, Vickey Singh <vickey.singh22693@xxxxxxxxx> wrote: > Hello Ceph Geeks > > I am planning to develop a python plugin that pulls out cluster recovery IO > and client IO operation metrics , that can be further used with collectd. > > For example , i need to take out these values > > recovery io 814 MB/s, 101 objects/s > client io 85475 kB/s rd, 1430 kB/s wr, 32 op/s > > > Could you please help me in understanding how ceph -s and ceph -w outputs > prints cluster recovery IO and client IO information. > Where this information is coming from. Is it coming from perf dump ? If yes > then which section of perf dump output is should focus on. If not then how > can i get this values. > > I tried ceph --admin-daemon /var/run/ceph/ceph-osd.48.asok perf dump , but > it generates hell lot of information and i am confused which section of > output should i use. This information is generated only on the monitors based on pg stats from the OSDs, is slightly laggy, and can be most easily accessed by calling "ceph -s" on a regular basis. You can get it with json output that is easier to parse, and you can optionally set up an API server for more programmatic access. I'm not sure on the details of doing that last, though. -Greg -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
