On Mon, Jan 09, 2017 at 05:53:03PM +0000, Ankireddypalle Reddy wrote: > Hi, > I am trying to extract the GFID for a file through libgfapi > interface. When I try to extract the value of extended attribute > glusterfs.gfid through libgfapi I get the errorno: 95. This works for FUSE > though. Is there a way to extract the GFID for a file through libgfapi.
It seems that this is a case where FUSE handles the xatts special. The glusterfs.gfid and glusterfs.gfid.string (VIRTUAL_GFID_XATTR_KEY and VIRTUAL_GFID_XATTR_KEY_STR) are specifically handled in xlators/mount/fuse/src/fuse-bridge.c. There is a way to get the GFID, but it probably is rather a cumbersome workaround for you. The handle-API is used heavily by NFS-Ganesha (because NFS uses filehandles more than filenames), and extracts the GFID from the 'struct glfs_object' with glfs_h_extract_handle(). A basic example of how to obtain and extract the handle is in https://github.com/gluster/glusterfs/blob/master/tests/basic/gfapi/bug1291259.c Could you explain the need for knowing the GFID in the application? We can extend gfapi with fetching the GFID if that would help you. Niels PS: we have a new integrat...@gluster.org where external projects can ask gfapi related questions. The gluster-devel list tends to be a little heavy on traffic for non-Gluster developers.
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