pg_num and pgp_num need to be the same, not? 3.5.1. Set the Number of PGs
To set the number of placement groups in a pool, you must specify the number of placement groups at the time you create the pool. See Create a Pool for details. Once you set placement groups for a pool, you can increase the number of placement groups (but you cannot decrease the number of placement groups). To increase the number of placement groups, execute the following: ceph osd pool set {pool-name} pg_num {pg_num} Once you increase the number of placement groups, you must also increase the number of placement groups for placement (pgp_num) before your cluster will rebalance. The pgp_num should be equal to the pg_num. To increase the number of placement groups for placement, execute the following: ceph osd pool set {pool-name} pgp_num {pgp_num} https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/4/html/storage_strategies_guide/placement_groups_pgs -----Original Message----- To: norman Cc: ceph-users Subject: [ceph-users] Re: pool pgp_num not updated Hi everyone, I'm seeing a similar issue here. Any ideas on this? Mac Wynkoop, On Sun, Sep 6, 2020 at 11:09 PM norman <norman.k...@gmx.com> wrote: > Hi guys, > > When I update the pg_num of a pool, I found it not worked(no > rebalanced), anyone know the reason? Pool's info: > > pool 21 'openstack-volumes-rs' replicated size 3 min_size 2 crush_rule > 21 object_hash rjenkins pg_num 1024 pgp_num 512 pgp_num_target 1024 > autoscale_mode warn last_change 85103 lfor 82044/82044/82044 flags > hashpspool,nodelete,selfmanaged_snaps stripe_width 0 application rbd > removed_snaps > [1~1e6,1e8~300,4e9~18,502~3f,542~11,554~1a,56f~1d7] > pool 22 'openstack-vms-rs' replicated size 3 min_size 2 crush_rule 22 > object_hash rjenkins pg_num 512 pgp_num 512 pg_num_target 256 > pgp_num_target 256 autoscale_mode warn last_change 84769 lfor > 0/0/55294 flags hashpspool,nodelete,selfmanaged_snaps stripe_width 0 > application rbd > > The pgp_num_target is set, but pgp_num not set. > > I have scale out new OSDs and is backfilling before setting the value, > is it the reason? > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an > email to ceph-users-le...@ceph.io > _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io