Can you add "debug rbd = 20" to your config, re-run the rbd command, and paste a link to the generated client log file? The rbd_children and rbd_directory objects store state as omap key/values, not as actual binary data within the object. You can use "rados -p rbd listomapvals rbd_directory/rbd_children" to see the data within the files. -- Jason Dillaman Red Hat dillaman@xxxxxxxxxx http://www.redhat.com ----- Original Message ----- From: "Matthew Monaco" <matt@xxxxxxxxx> To: ceph-users@xxxxxxxxxxxxxx Sent: Sunday, April 12, 2015 10:57:46 PM Subject: rbd: incorrect metadata I have a pool used for RBD in a bit of an inconsistent state. Somehow, through OpenStack, the data associated with a child volume was deleted. If I try to unprotect the snapshot, librbd complains there is at least one child. If I try to list out the children, librbd errors out on looking up the image id. "listing children failed: (2) No such file or directory". I thought I might get brave and edit rbd_children / rbd_directory / rbd_header* "by hand." However rbd_children and rbd_directory are empty. I've even tracked down all 3 copies of each meta file in the filestore and they too are empty. So where is the parent/child association coming from? Despite this, I don't have issues listing children for other snapshots in the same pool. Thanks! _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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