[Gluster-devel] How to enable ACL support in Glusterfs volume

[Niels de Vos]

On Tue, Apr 26, 2016 at 07:46:03PM +0530, ABHISHEK PALIWAL wrote:
> On Tue, Apr 26, 2016 at 7:06 PM, Niels de Vos <ndevos at redhat.com> wrote:
> 
> > On Tue, Apr 26, 2016 at 06:45:59PM +0530, ABHISHEK PALIWAL wrote:
> > > On Tue, Apr 26, 2016 at 6:37 PM, Niels de Vos <ndevos at redhat.com> wrote:
> > >
> > > > On Tue, Apr 26, 2016 at 12:11:06PM +0530, ABHISHEK PALIWAL wrote:
> > > > >  Hi,
> > > > >
> > > > > I want to enable ACL support on gluster volume using the kernel NFS
> > ACL
> > > > > support so I have followed below steps after creation of gluster
> > volume:
> > > > >
> > > > > 1. mount -t glusterfs -o acl 10.32.0.48:/c_glusterfs /tmp/a2
> > > > >
> > > > > 2.       update the /etc/exports file
> > > > > /tmp/a2 10.32.*(rw,acl,sync,no_subtree_check,no_root_squash,fsid=14)
> > > > >
> > > > > 3.       exportfs –ra
> > > > >
> > > > > 4.       gluster volume set c_glusterfs nfs.acl off
> > > > >
> > > > > 5.       gluster volume set c_glusterfs nfs.disable on
> > > > >
> > > > > we have disabled above two options because we are using Kernel NFS
> > ACL
> > > > > support and that is already enabled.
> > > > >
> > > > >
> > > > >
> > > > > on other board mounting it using
> > > > >
> > > > > mount -t nfs -o acl,vers=3 10.32.0.48:/tmp/a2 /tmp/e/
> > > > >
> > > > > setfacl -m u:application:rw /tmp/e/usr
> > > > > setfacl: /tmp/e/usr: Operation not supported
> > > >
> > > > Have you tried to set/getfacl on the Gluster FUSE mountpoint (/tmp/a2)
> > > > too? Depending on the filesystem that you use on the bricks, you may
> > > > need to mount with "-o acl" there as well. Try to set/get an ACL on all
> > > > of these different levels to see where is starts to fail.
> > > >
> > > Yes, you can check I have already given -o acl on /tmp/a2 as well as
> > below
> >
> > Sorry, that is not what I meant. The bricks that provide the c_glusterfs
> > volume need to support and have ACLs enabled as well. If you use XFS, it
> > should be enabled by default. But some other filesystems do not do that.
> >
> > You have three different mountpoints:
> >
> >  - /tmp/e: nfs
> >  - /tmp/a2: Gluster FUSE
> >  - whatever you use as bricks for c_glusterfs: XFS or something else?
> >
> 
> I have following volume info
> 
> Volume Name: c_glusterfs
> Type: Replicate
> Volume ID: 5be1524c-21ae-47d5-970a-d4920fca39cf
> Status: Started
> Number of Bricks: 1 x 2 = 2
> Transport-type: tcp
> Bricks:
> Brick1: 10.32.0.48:/opt/lvmdir/c2/brick
> Brick2: 10.32.1.144:/opt/lvmdir/c2/brick
> Options Reconfigured:
> nfs.acl: off
> nfs.disable: on
> network.ping-timeout: 4
> performance.readdir-ahead: on
> 
> now according to you /opt/lvmdir/c2/brick should support ACL option or
> /opt/lvmdir/c2 ? if /opt/lvmdir/
> c2 then we are mounting it as below
> 
>  mount -o acl /dev/cpplvm_vg/vol2  /opt/lvmdir//c2

If /opt/lvmdir/c2 is the mountpoint, then make sure that a test-file
like /opt/lvmdir/c2/test-acl can have ACLs. It may require mounting
/opt/lvmdir/c2 with the "-o acl" option, but that depends on the
filesystem.

Also try to create a test-file on /tmp/a2 and check of ACLs work on the
Gluster FUSE mountpoint.

If these two filesystems support ACLs, I do not see a problem why the
kernel NFS server can not use them.

> I have one more question : we are using logical volume here for glusterfs
> so it should not create any issue in ACL support?

No, that should not matter.

Cheers,
Niels

> 
> 
> Regards,
> 
> Abhishek
> 
> 
> >
> > HTH,
> > Niels
> >
> > >
> > > > 1. mount -t glusterfs -o acl 10.32.0.48:/c_glusterfs /tmp/a2
> > > >
> > > > 2.       update the /etc/exports file
> > > > /tmp/a2 10.32.*(rw,acl,sync,no_subtree_check,no_root_squash,fsid=14)
> > > >
> > >
> > > >
> > > > Thanks,
> > > > Niels
> > > >
> > > > >
> > > > > and application is the system user like below
> > > > >
> > > > > application:x:102:0::/home/application:/bin/sh
> > > > >
> > > > > I don't why I am getting this failure when I enabled all the acl
> > support
> > > > in
> > > > > each steps.
> > > > >
> > > > > Please let me know how can I enable this.
> > > > >
> > > > > Regards,
> > > > > Abhishek
> > > >
> > > > > _______________________________________________
> > > > > Gluster-devel mailing list
> > > > > Gluster-devel at gluster.org
> > > > > http://www.gluster.org/mailman/listinfo/gluster-devel
> > > >
> > > >
> > >
> > >
> > > --
> > >
> > >
> > >
> > >
> > > Regards
> > > Abhishek Paliwal
> >
> 
> 
> 
> -- 
> 
> 
> 
> 
> Regards
> Abhishek Paliwal
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