Ceph

In the environment with EC rule and repliaction rule, balancer was turned on and ceph cluster was repeatedly recovered. After shutting down balance, it returned to normal
version:
ceph version 12.2.8 (ae699615bac534ea496ee965ac6192cb7e0e07c0) luminous (stable)

balancer:
root@cmn01:~# ceph balancer status {
"active": true,
"plans": [],
"mode": "crush-compat"
}