[Gluster-users] xattrs

Krishna Srinivas krishna at zresearch.com
Tue Jun 24 05:47:17 PDT 2008


Looks like we have introduced a bug, shall get back after the fix.
Krishna

On Tue, Jun 24, 2008 at 12:25 AM, Christopher Hawkins
<chawkins at bplinux.com> wrote:
> There is some new behavior after some more testing so I'll start a new thread. Let's forget the old one for now as that is possibly unrelated.
>
> Using:
> glusterfs 1.4.0qa22 built on Jun 22 2008 23:48:33
> Repository revision: glusterfs--mainline--3.0--patch-197
> And fuse: fuse-2.7.3glfs10
>
> I have a client that AFR's two servers. Very simple configs, just a single brick (storage1) on each server and this on the client -
>
> volume master1
>  type protocol/client
>  option transport-type tcp/client     # for TCP/IP transport
>  option remote-host 192.168.20.150       # IP address of the remote brick
>  option transport-timeout 5
>  option remote-subvolume storage1      # name of the remote volume
> end-volume
>
> volume master2
>  type protocol/client
>  option transport-type tcp/client     # for TCP/IP transport
>  option remote-host 192.168.20.151       # IP address of the remote brick
>  option transport-timeout 5
>  option remote-subvolume storage1        # name of the remote volume
> end-volume
>
> volume data-afr
>  type cluster/afr
>  subvolumes master1 master2
> end-volume
>
> Everything mounts no problem. Now on the client I do this inside the gluster mount: "echo somedata > afile" to create afile. And both servers get a copy of afile with the correct data inside. There are two interesting things going on... One, I can't see any xattr versioning information:
>
> root at master1 cluster # getfattr -n trusted.glusterfs.version /cluster/afile
> /cluster/afile: trusted.glusterfs.version: No such attribute
>
> Two, on every write to the file, the servers each log this in glusterfsd.log:
> 2008-06-23 13:06:57 W [posix.c:1546:posix_incver] storage1: /cluster/afile: No data available
>
> But I can set it from the client like so:  "setfattr -n trusted.glusterfs.version -v 5 afile"  and now:
>
> root at master1 cluster # getfattr -n trusted.glusterfs.version /cluster/afile
> getfattr: Removing leading '/' from absolute path names
> # file: cluster/afile
> trusted.glusterfs.version="5"
>
> So it looks like xattr support is working fine, and now when I echo more data into afile, the servers do not log any errors and the file version gets incremented correctly:
>
> root at master1 cluster # getfattr -n trusted.glusterfs.version /cluster/afile
> getfattr: Removing leading '/' from absolute path names
> # file: cluster/afile
> trusted.glusterfs.version="6"
>
> Any ideas on why gluster is not creating the xattrs by itself?
>
> Thanks,
> Chris
>
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