root at ceph-mgr  <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>:~# 
ceph balancer mode upmap
root at ceph-mgr  <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>:~# 
ceph balancer optimize myplan
root at ceph-mgr  <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>:~# 
ceph balancer show myplan
# starting osdmap epoch 409753
# starting crush version 84
# mode upmap
ceph osd pg-upmap-items 4.18e 34 13
ceph osd pg-upmap-items 4.36d 24 20
ceph osd pg-upmap-items 7.2 10 15
ceph osd pg-upmap-items 7.3 24 20 4 17
ceph osd pg-upmap-items 7.4 0 16 4 25
ceph osd pg-upmap-items 7.5 19 2 8 13
ceph osd pg-upmap-items 7.7 8 21
root at ceph-mgr  <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>:~# 
ceph balancer execute myplan
Error EPERM: min_compat_client jewel < luminous, which is required for 
pg-upmap. Try 'ceph osd set-require-min-compat-client luminous' before using the 
new interface
root at ceph-mgr  <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>:~# 
ceph osd set-require-min-compat-client luminous
Error EPERM: cannot set require_min_compat_client to luminous: 811 connected 
client(s) look like jewel (missing 0x800000000200000); add 
--yes-i-really-mean-it to do it anyway
root at ceph-mgr  <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>:~#

What is your `ceph features`?



k

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