Ceph扩展mgr节点实现高可用

查看当前ceph集群状态

可以看到有3个mgr

[root@node1 cephcluster]# ceph status
  cluster:
    id:     9e7b59a6-c3ee-43d4-9baf-60d5bb05484a
    health: HEALTH_OK
 
  services:
    mon: 5 daemons, quorum node3,node4,node1,node2,node5 (age 7m)
    mgr: node1(active, since 7h), standbys: node4, node3
    osd: 3 osds: 3 up (since 7h), 3 in (since 7h)
 
  data:
    pools:   2 pools, 33 pgs
    objects: 2 objects, 769 KiB
    usage:   82 MiB used, 477 GiB / 477 GiB avail
    pgs:     33 active+clean

初始化node2, node5

参照juejin.cn/post/729415…

在node2和node5节点上创建mgr服务

 ceph-deploy mgr create node2
  ceph-deploy mgr create node5

查看ceph集群状态

可以看到mgr为5个了

[root@node1 cephcluster]# ceph status
  cluster:
    id:     9e7b59a6-c3ee-43d4-9baf-60d5bb05484a
    health: HEALTH_OK
 
  services:
    mon: 5 daemons, quorum node3,node4,node1,node2,node5 (age 13m)
    mgr: node1(active, since 7h), standbys: node4, node3, node2, node5
    osd: 3 osds: 3 up (since 7h), 3 in (since 7h)
 
  data:
    pools:   2 pools, 33 pgs
    objects: 2 objects, 769 KiB
    usage:   82 MiB used, 477 GiB / 477 GiB avail
    pgs:     33 active+clean