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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 <ceph-users-bounces@xxxxxxxxxxxxxx> on behalf of Albert Yue <transuranium.yue@xxxxxxxxx>
Sent: Wednesday, 30 January 2019 1:39:40 PM To: ceph-users Subject: 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
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