Currently, RBD does not provide an easy way to consult who opened a specied image, this complicates the cloud maintenance, sometimes the administrator found that a RBD image could not be deleted with an error 'image has watchers', but no further information available. The RADOS has a command to show the watchers of an object, but the commands at RADOS level are not supposed to be exposed to a cloud administrator, and it is not clear for a non-expert administrator to how to associate an opened RBD with a corresponding watched object. This motivates us to add an RBD command to list the information of the clients who opened a RBD image to facilitate the cloud maintenance. The patches are at: https://github.com/ceph/ceph/pull/3435 Yunchuan Wen (3): rbd: add listwatchers command to list the watchers of an image test: add rbd listwatchers to src/test/cli/rbd/help.t man: add rbd listwatchers to doc/man/8/rbd.rst doc/man/8/rbd.rst | 3 +++ src/rbd.cc | 63 +++++++++++++++++++++++++++++++++++++++++++++++-- src/test/cli/rbd/help.t | 1 + 3 files changed, 65 insertions(+), 2 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
