It's stored in the OSDMap on the monitors. Software Engineer #42 @ http://inktank.com | http://ceph.com On Mon, Sep 8, 2014 at 10:50 AM, JIten Shah <jshah2005 at me.com> wrote: > So, if it doesn?t refer to the entry in ceph.conf. Where does it actually store the new value? > > ?Jiten > > On Sep 8, 2014, at 10:31 AM, Gregory Farnum <greg at inktank.com> wrote: > >> On Mon, Sep 8, 2014 at 10:08 AM, JIten Shah <jshah2005 at me.com> wrote: >>> While checking the health of the cluster, I ran to the following error: >>> >>> warning: health HEALTH_WARN too few pgs per osd (1< min 20) >>> >>> When I checked the pg and php numbers, I saw the value was the default value >>> of 64 >>> >>> ceph osd pool get data pg_num >>> pg_num: 64 >>> ceph osd pool get data pgp_num >>> pgp_num: 64 >>> >>> Checking the ceph documents, I updated the numbers to 2000 using the >>> following commands: >>> >>> ceph osd pool set data pg_num 2000 >>> ceph osd pool set data pgp_num 2000 >>> >>> It started resizing the data and saw health warnings again: >>> >>> health HEALTH_WARN 1 requests are blocked > 32 sec; pool data pg_num 2000 > >>> pgp_num 64 >>> >>> and then: >>> >>> ceph health detail >>> HEALTH_WARN 6 requests are blocked > 32 sec; 3 osds have slow requests >>> 5 ops are blocked > 65.536 sec >>> 1 ops are blocked > 32.768 sec >>> 1 ops are blocked > 32.768 sec on osd.16 >>> 1 ops are blocked > 65.536 sec on osd.77 >>> 4 ops are blocked > 65.536 sec on osd.98 >>> 3 osds have slow requests >>> >>> This error also went away after a day. >>> >>> ceph health detail >>> HEALTH_OK >>> >>> >>> Now, the question I have is, will this pg number remain effective on the >>> cluster, even if we restart MON or OSD?s on the individual disks? I haven?t >>> changed the values in /etc/ceph/ceph.conf. Do I need to make a change to the >>> ceph.conf and push that change to all the MON, MSD and OSD?s ? >> >> It's durable once the commands are successful on the monitors. You're all done. >> -Greg >> Software Engineer #42 @ http://inktank.com | http://ceph.com >> _______________________________________________ >> ceph-users mailing list >> ceph-users at lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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