For OSDs, that is correct. FYI - perf counters are also available for all Ceph daemon types (mon, mds, rgw).
Dan Ryder From: 10 minus [mailto:[email protected]] Sent: Monday, November 17, 2014 7:25 AM To: Dan Ryder (daryder) Cc: ceph-users Subject: Re: [ceph-users] Performance data collection for Ceph Thanks Dan, If I understand correctly , perf_counters have to run against OSDs ( I mean for every OSD I have to run a check). On Fri, Nov 14, 2014 at 8:44 PM, Dan Ryder (daryder) <[email protected]<mailto:[email protected]>> wrote: Hi, Take a look at the built in perf counters - http://ceph.com/docs/master/dev/perf_counters/. Through this you can get individual daemon performance as well as some cluster level statistics. Other (cluster-level) disk space utilization and pool utilization/performance is available through “ceph df detail”. Hope this helps. Dan Ryder From: ceph-users [mailto:[email protected]<mailto:[email protected]>] On Behalf Of 10 minus Sent: Friday, November 14, 2014 10:26 AM To: ceph-users Subject: [ceph-users] Performance data collection for Ceph Hi, I 'm trying to collect performance data for Ceph I 'm looking to run some commands .. on regular intervals. to collect data. Apart from "ceph osd perf" . Are there other commands one can use. Can I also track how much data is being replicated ? Does Ceph maintain performance counters for individual OSDs ? Something on the lines of zpool iostat .
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