ceph 開啟mgr balancer

參考鏈接：

mgr balancer模式探索及配置方法1

mgr balancer模式探索及配置方法2

1.ceph mgr module enable balancer 

[root@controller ~]# ceph mgr module enable balancer 
module 'balancer' is already enabled (always-on)

2.ceph balancer on

3.ceph balancer status

[root@controller ~]# ceph balancer status
{
    "last_optimize_duration": "0:00:00.000526", 
    "plans": [], 
    "mode": "none", 
    "active": true, 
    "optimize_result": "Too many objects (0.075198 > 0.050000) are misplaced; try again later", 
    "last_optimize_started": "Mon Apr 27 06:31:08 2020"
}