On 28-08-15 13:07, Gregory Farnum wrote: > 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. Isn't there a direct Python way to get these stats using a RADOS command? Executing a subprocess in Python seems kind of hacky while 'ceph' itself is also written in Python. Wido > -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 > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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