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  • ceph 剔除osd

    先将osd.2移出集群

    root@ceph-monster:~# ceph osd out osd.2 
    marked out osd.2. 
    
    root@ceph-monster:~# ceph osd tree
    ID WEIGHT  TYPE NAME             UP/DOWN REWEIGHT PRIMARY-AFFINITY 
    -1 0.79999 root default                                            
    -2 0.39999     host ceph-monster                                   
     0 0.20000         osd.0              up  1.00000          1.00000 
     1 0.20000         osd.1              up  1.00000          1.00000 
    -3 0.39999     host ceph-node1                                     
     2 0.20000         osd.2              up        0          1.00000 
     3 0.20000         osd.3              up  1.00000          1.00000 
    root@ceph-monster:~# ceph osd stat
         osdmap e275: 4 osds: 4 up, 3 in; 137 remapped pgs
    

    down掉osd.2并删除

    root@ceph-monster:~# ceph osd down osd.2 ; ceph osd rm osd.2 
    marked down osd.2. 
    removed osd.2
    
    root@ceph-monster:~# ceph osd tree
    ID WEIGHT  TYPE NAME             UP/DOWN REWEIGHT PRIMARY-AFFINITY 
    -1 0.79999 root default                                            
    -2 0.39999     host ceph-monster                                   
     0 0.20000         osd.0              up  1.00000          1.00000 
     1 0.20000         osd.1              up  1.00000          1.00000 
    -3 0.39999     host ceph-node1                                     
     2 0.20000         osd.2             DNE        0                  
     3 0.20000         osd.3              up  1.00000          1.00000 
    
    root@ceph-monster:~# ceph osd stat
         osdmap e281: 3 osds: 3 up, 3 in; 137 remapped pgs
    

    删除osd.2的crush map

    root@ceph-monster:~# ceph osd crush rm osd.2 
    removed item id 2 name 'osd.2' from crush map
    
    root@ceph-monster:~# ceph osd tree
    ID WEIGHT  TYPE NAME             UP/DOWN REWEIGHT PRIMARY-AFFINITY 
    -1 0.59999 root default                                            
    -2 0.39999     host ceph-monster                                   
     0 0.20000         osd.0              up  1.00000          1.00000 
     1 0.20000         osd.1              up  1.00000          1.00000 
    -3 0.20000     host ceph-node1                                     
     3 0.20000         osd.3              up  1.00000          1.00000 
    
    root@ceph-monster:~# ceph osd stat
         osdmap e285: 3 osds: 3 up, 3 in
    

    删除auth

    root@ceph-monster:~# ceph auth del osd.2
    updated
    

    停掉osd进程

    root@ceph-node1:~# /etc/init.d/ceph  stop osd.2
    === osd.2 === 
    Stopping Ceph osd.2 on ceph-node1...kill 1190...kill 1190...done
    
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  • 原文地址:https://www.cnblogs.com/wshenjin/p/11550176.html
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