From 6cb2106c22e1ea3758ac63dc725b888470f5dd5a Mon Sep 17 00:00:00 2001 From: Varun Shastry Date: Tue, 22 Oct 2013 16:12:58 +0530 Subject: features/quota: Metadata cleanup Quota and marker uses 'trusted.glusterfs.quota*' and 'trusted.pgfid*' xattrs to store its configurations and accounting information and also to build the parent inode chain in case of absense of path. Problem: After disabling and then enabling quota back, the xattrs may contain stale data leading to impaired accounting and thus improper enforcement. Solution: Clean up all the quota related xattrs after quota disable. Marker xlator implements a virtual xattr to cleanup quota and pgfid xattrs. In this approach glusterd mounts an auxiliary mount and sends the below command to all the files by crawling the mountpoint. #setfattr -n "glusterfs.quota-xattr-cleanup" -v 1 Credit: Krishnan Parthasarathi Varun Shastry Change-Id: I9380eca58a285dc27dd572de1767aac8f2cd8049 BUG: 969461 Signed-off-by: Varun Shastry Reviewed-on: http://review.gluster.org/6369 Reviewed-by: Raghavendra G Tested-by: Gluster Build System Reviewed-by: Krishnan Parthasarathi Reviewed-by: Vijay Bellur Reviewed-on: http://review.gluster.org/6838 --- libglusterfs/src/glusterfs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'libglusterfs/src') diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h index 4f7a5235372..2b26763644b 100644 --- a/libglusterfs/src/glusterfs.h +++ b/libglusterfs/src/glusterfs.h @@ -86,6 +86,7 @@ #define GF_XATTR_LOCKINFO_KEY "trusted.glusterfs.lockinfo" #define GF_XATTR_GET_REAL_FILENAME_KEY "user.glusterfs.get_real_filename:" #define QUOTA_LIMIT_KEY "trusted.glusterfs.quota.limit-set" +#define VIRTUAL_QUOTA_XATTR_CLEANUP_KEY "glusterfs.quota-xattr-cleanup" #define GF_READDIR_SKIP_DIRS "readdir-filter-directories" -- cgit