rsync --xattrs w/ nfs

[kitepilot at kitepilot.com]

Just wondering...
Can you ditch NFS and do sshfs?
NFS suuucks...
ET 

 

Eric Shubert writes: 

> Eric Shubert wrote:
>> Eric Shubert wrote:
>>> I could use a little help. 
>>> 
>>> I'm trying to rsync w/ --xattrs to a mounted nfs filesystem, and get the 
>>> following error on each file:
>>> rsync_xal_set: lsetxattr user.DOSATTRIB failed: Operation not supported
>>> The rsync works fine w/out the --xattrs option. This appears to indicate 
>>> that xattr isn't enabled on the destination side. 
>>> 
>>> Both hosts are running current CentOS5.4, and I'm running as root (just 
>>> for testing). 
>>> 
>>> The source files contain the user.DOSATTRIB attributes from samba:
>>>         map archive = no
>>>         map hidden = no
>>>         map read only = no
>>>         map system = no
>>>         store dos attributes = yes
>>>         dos filemode = yes
>>> and the source filesystem (ext3) has xattr enabled:
>>> # tune2fs -l /dev/mapper/VolGroup00-LogVol00 | grep attr
>>> Filesystem features:      has_journal ext_attr resize_inode dir_index 
>>> filetype needs_recovery sparse_super large_file
>>> Default mount options:    user_xattr acl 
>>> 
>>> The remote host has xattr enabled as well:
>>> # tune2fs -l /dev/md7 | grep attr
>>> Filesystem features:      has_journal ext_attr resize_inode dir_index 
>>> filetype needs_recovery sparse_super large_file
>>> Default mount options:    user_xattr acl 
>>> 
>>> I've added user_xattr specifically to the fstab entry on the destination 
>>> side, in case the default mount option wasn't taking:
>>> # cat /etc/fstab | grep md7
>>> /dev/md7       /udat       ext3    user_xattr,acl  1 2 
>>> 
>>> Autofs mounts nfs with the following options:
>>> -async,auto,rw,suid,user_xattrs,acl,fstype=nfs,rsize=32768,wsize=32768,i 
>>> ntr  
>>> 
>>> 
>>> I'm guessing that nfs is likely the problem, but from googling a bit, it 
>>> appears that nfs should pass xattr values just fine. Perhaps this is 
>>> incorrect. 
>>> 
>>> Does anyone have an idea why I'm getting this error?
>>> Solution?
>>> TIA. 
>>> 
>> 
>> On further review, it appears that nfs on COS5.4 doesn't support xattrs. 
>> I'll try mounting with cifs and see how that works. I'm guessing it'll 
>> work better, given that rsync and samba come from the same place for the 
>> most part. ;) 
>> 
> 
> Just for the record, mounting with cifs didn't work either. /proc/mounts  
> did not show the xattrs option in either case. So I'm guessing that xattrs 
> on a remote cifs is just not supported yet, although I'm not quite certain 
> what is missing. The kernel appears to have xattr enabled:
> # grep -i attr /boot/config-2.6.18-128.2.1.el5
> CONFIG_RAID_ATTRS=m
> CONFIG_SCSI_SPI_ATTRS=m
> CONFIG_SCSI_FC_ATTRS=m
> CONFIG_SCSI_ISCSI_ATTRS=m
> CONFIG_SCSI_SAS_ATTRS=m
> CONFIG_EXT2_FS_XATTR=y
> CONFIG_EXT3_FS_XATTR=y
> CONFIG_EXT4DEV_FS_XATTR=y
> # CONFIG_JFFS2_FS_XATTR is not set
> CONFIG_CIFS_XATTR=y 
> 
> Anyone know why xattrs on a (mounted) remote fs (nfs and/or cifs) wouldn't 
> work? I think the code for NFS isn't in the COS5 kernel, but I really 
> expected cifs would work. 
> 
> Anyhow, I just rsync'd w/ --xattr over ssh and that worked fine.
> Moving on. :) 
> 
> -- 
> -Eric 'shubes' 
> 
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