> Thanks for pointing to the article. I have been following the article all the > way. What intrigues me is the dht values associated with sub directories. > [root@glusterhackervm3 glus]# getfattr -n trusted.glusterfs.dht -e hex > /brick2/vol > getfattr: Removing leading '/' from absolute path names > # file: brick2/vol > trusted.glusterfs.dht=0x00000001000000007ffffde2ffffffff > [root@glusterhackervm3 glus]# getfattr -n trusted.glusterfs.dht -e hex > /brick2/vol/d/ > getfattr: Removing leading '/' from absolute path names > # file: brick2/vol/d/ > trusted.glusterfs.dht=0x0000000100000000000000007ffffffe > Does it mean that only files whose DHT value ranges from 0x00 to 0x 7ffffffe > can be saved inside the ‘d’ directory. But then it provides a very narrow > range of 0x7ffffde2 to 0x 7ffffffe to be created in that directory. To know the distribution for a directory as seen by the user, you need to look at the xattrs for the matching directory on every brick. What the above shows us is that, *for this brick*: in brick2/vol, this brick will store files with hashes from 7ffffde2 to ffffffff in the subdirectory /brick2/vol/d, this brick will store files from 00000000 to 7ffffffe Note that this is *completely independent* for each directory, and only affects placement of non-directories. There's no set-intersection going on between the ranges for a directory and its parent(s). The subdirectory looks like what I'd expect to see for a volume with two (possibly replicated) DHT subvolumes. The root looks a lot weirder - almost, but not quite, the top half of the hash distribution. I think this could happen if here had been multiple brick additions/removals and rebalances, but I'm not sure what that combination would have to be. If .../d had been created later, it would be unaffected by all of these prior actions and would still get an exactly-half share of the hash range. _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-users
