在一个使用的环境发现两个ceph的rbd删除不了,发现两个rbd都是由于残留了watch的信息。在此记录处理过程。
 
ASP站长网处理方法
 
[root@node-2 ~]# rbd rm compute/2d05517a-8670-4cce-b39d-709e055381d6_disk
2018-06-11 13:19:14.787750 7fd05853bd80 -1 librbd: cannot obtain exclusive lock - not removing
Removing image: 0% complete...failed.
rbd: error: image still has watchers
This means the image is still open or the client using it crashed. Try again after closing/unmapping it or waiting 30s for the crashed client to timeout.
 
查看rbd 残留的watch信息
 
[root@node-2 ~]# rbd status compute/2d05517a-8670-4cce-b39d-709e055381d6_disk
Watchers:
    watcher=192.168.55.2:0/2900899764 client.14844 cookie=139644428642944
 
将该残留的watch信息添加到osd的黑名单,再查看watch是否存在。
 
[root@node-2 ~]# ceph osd blacklist add 192.168.55.2:0/2900899764
blacklisting 192.168.55.2:0/2900899764 until 2018-06-11 14:25:31.027420 (3600 sec)
 
[root@node-2 ~]# rbd status compute/2d05517a-8670-4cce-b39d-709e055381d6_disk
Watchers: none
 
删除rbd
 
[root@node-2 ~]# rbd rm compute/2d05517a-8670-4cce-b39d-709e055381d6_disk
Removing image: 100% complete...done.

dawei

【声明】:九江站长网内容转载自互联网,其相关言论仅代表作者个人观点绝非权威,不代表本站立场。如您发现内容存在版权问题,请提交相关链接至邮箱:bqsm@foxmail.com,我们将及时予以处理。