[Gluster-users] Missing glusterfs.so (Gluster + Samba-VFS under Ubuntu)

[Anoop C S]

On Sun, 2018-11-25 at 07:39 -0800, Neil Richardson wrote:
> Hi, guys.  I'm new to all of this and need some help with a problem
> I've been banging my head against for a while.  (Tried
> troubleshooting, checking logs, and lots of Googling for a few weeks
> now, but just keep hitting dead ends.)
> 
> 
> SYMPTOM:
> Missing file `/usr/lib/x86_64-linux-gnu/samba/vfs/glusterfs.so`, as
> evidenced by error messages like these:
> 
> [2018/11/18 07:56:42.551587,  0]
> ../lib/util/modules.c:49(load_module)
>   Error loading module
> '/usr/lib/x86_64-linux-gnu/samba/vfs/glusterfs.so':
> /usr/lib/x86_64-linux-gnu/samba/vfs/glusterfs.so: cannot open shared
> object file: No such file or directory
> [2018/11/18 07:56:42.551652,  0]
> ../source3/smbd/vfs.c:184(vfs_init_custom)
>   error probing vfs module 'glusterfs': NT_STATUS_UNSUCCESSFUL
> [2018/11/18 07:56:42.551694,  0]
> ../source3/smbd/vfs.c:379(smbd_vfs_init)
>   smbd_vfs_init: vfs_init_custom failed for glusterfs
> [2018/11/18 07:56:42.551729,  0]
> ../source3/smbd/service.c:623(make_connection_snum)
>   vfs_init failed for service music
> 
> 
> PROBLEM:
> I was able to get a simple Gluster+Samba+CTDB cluster working enough
> so that my Windows machines could see a read-only share, and it
> seemed that if one Gluster node went offline the other would
> (eventually) pick up so that the share remained available.  However
> I read that samba-vfs-glusterfs would allow a more seamless
> transition when a Gluster node goes down, and also allow Samba to
> talk directly to the Gluster storage without having to go through
> FUSE.  However all of the documentation and tutorials I can find are
> either for non-Ubuntu systems or doesn't work (obsolete versions,
> PPA not found, etc).
> 
> Basically I've done this (representative sample because my full
> changelog and automation scripts would be too lengthy):
> 1) Gluster/Samba/CTDB config, but without the ZFS RAID-1
> configuration
>    https://www.gluster.org/gluster-cifs-zfs-kind-of-part-2/
> 2) Add and configure `samba-vfs-modules`
> 
> https://www.samba.org/samba/docs/current/man-html/vfs_glusterfs.8.html
> 3) Try to add/pin André Bauer's custom PPA to get any customized
> versions that might be needed
> 
> https://lists.gluster.org/pipermail/gluster-users/2015-August/023339.html
>    https://bugzilla.redhat.com/show_bug.cgi?id=1333264
> 
> I also tried a couple permutations of 'apt get' to see if the
> different packages were installing differently based on what other
> packages were installed, but I haven't found the magic sequence yet.
> 
> It looks like glusterfs-common has a "libglusterfs.so" for Ubuntu 18
> (
> https://ubuntu.pkgs.org/18.10/ubuntu-universe-i386/glusterfs-common_4.1.2-1_i386.deb.html
> )
> and Ubuntu 16, but that package is already installed and I'm still
> getting the error so there's something else I'm missing.
> 
> 
> ENVIRONMENT:
> Samba 4.7.6-UBUNTU
> glusterfs 4.1.2
> 
> I can't tell if this is a Gluster problem or a Samba problem

`/usr/lib/x86_64-linux-gnu/samba/vfs/glusterfs.so` has to come from
Samba. By default vfs module for glusterfs should have been built
unless it is explicitly disabled with '--disable-glusterfs' during
build process.

Let me see if I can find individual repositories which builds with vfs
module for GlusterFS.

> but I figure I can't be the only Gluster user trying to set up this
> configuration (and having this problem) so I'm starting here first.
> Can someone please give me a clue what direction I should be looking
> in?
> 
> 
> 
> Thank you,
> -Neil
> 
> 
> 
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