Re: [ceph-users] Best practice for increasing number of pg and pgp
Den ons 30 jan. 2019 kl 05:24 skrev Linh Vu : > > We use https://github.com/cernceph/ceph-scripts ceph-gentle-split script to > slowly increase by 16 pgs at a time until we hit the target. > > Somebody recommends that this adjustment should be done in multiple stages, > e.g. increase 1024 pg each time. Is this a good practice? or should we > increase it to 8192 in one time. Thanks! We also do a few at a time, mostly 8 I think. -- May the most significant bit of your life be positive. ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
Re: [ceph-users] Best practice for increasing number of pg and pgp
Hi, On 30/01/2019 02:39, Albert Yue wrote: > As the number of OSDs increase in our cluster, we reach a point where > pg/osd is lower than recommend value and we want to increase it from > 4096 to 8192. For an increase that small, I'd just do it in one go (and have done so on our production clusters without issue); I'd only think about doing it in stages for a larger increase. Regards, Matthew -- The Wellcome Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE. ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
Re: [ceph-users] Best practice for increasing number of pg and pgp
We use https://github.com/cernceph/ceph-scripts ceph-gentle-split script to slowly increase by 16 pgs at a time until we hit the target. From: ceph-users on behalf of Albert Yue Sent: Wednesday, 30 January 2019 1:39:40 PM To: ceph-users Subject: [ceph-users] Best practice for increasing number of pg and pgp Dear Ceph Users, As the number of OSDs increase in our cluster, we reach a point where pg/osd is lower than recommend value and we want to increase it from 4096 to 8192. Somebody recommends that this adjustment should be done in multiple stages, e.g. increase 1024 pg each time. Is this a good practice? or should we increase it to 8192 in one time. Thanks! Best regards, Albert ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
[ceph-users] Best practice for increasing number of pg and pgp
Dear Ceph Users, As the number of OSDs increase in our cluster, we reach a point where pg/osd is lower than recommend value and we want to increase it from 4096 to 8192. Somebody recommends that this adjustment should be done in multiple stages, e.g. increase 1024 pg each time. Is this a good practice? or should we increase it to 8192 in one time. Thanks! Best regards, Albert ___ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
