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  • 记录ceph两个rbd删除不了的处理过程

    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。

    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.

     

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  • 原文地址:https://www.cnblogs.com/alfiesuse/p/11575245.html
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