[Bug 1581764] Re: the rbd volume can not unmap when using multipath service

[yuyafei]

I think this bug should move to multipath.

** Project changed: ceph => multipath-tools (Ubuntu)

** Changed in: multipath-tools (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1581764

Title:
  the rbd volume can not unmap when using multipath service

Status in multipath-tools package in Ubuntu:
  Confirmed

Bug description:
  Precondition: the node use multipath service.

  Operation: unmap the rbd volume after mapping the volume to node

  Error phenomenon:

        [root at 2C5_19_CG1 ~(keystone_admin)]# rbd unmap /dev/rbd5
         rbd: sysfs write failed
         rbd: unmap failed: (16) Device or resource busy

  Causal analysis: the rbd volume was taken over by multipath service

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