rsync --xattrs w/ nfs

[Eric Shubert]

I haven't tried sshfs. Don't know much at all about that.
rsync over ssh worked fine though.
I agree, NFS suuuux. I might look into NFS4 at some point, but I can't 
say I'm looking forward to it.

kitepilot at kitepilot.com wrote:
> 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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-- 
-Eric 'shubes'