On Wed, 2018-09-12 at 10:37 -0600, Terry McGuire wrote: > Hey Anoop. Thanks for looking into this. Responses inline: > > > On Sep 11, 2018, at 23:42, Anoop C S <anoopcs@xxxxxxxxxxxxx> wrote: > > > > On Tue, 2018-09-11 at 15:10 -0600, Terry McGuire wrote: > > > Hello list. I had happily been sharing a Gluster volume with Samba using vfs_gluster, but it > > > has > > > recently stopped working right. I think it might have been after updating Samba from 4.6.2 to > > > 4.7.1 (as part of updating CentOS 7.4 to 7.5). The shares suffer a variety of weird issues, > > > including: > > > > > > - sporadic connection refusals (credentials are accepted as valid, but volume is unavailable) > > > > Does that mean after authentication share is not at all listed? > > On a Mac, after the auth dialog disappears (suggesting the auth was valid), a dialog appears > saying the volume is unavailable. Can’t recall what the behaviour on Windows is, but it would be > equivalent. (This error doesn’t happen often, so I can’t quickly reproduce it, and I can’t even > quite be sure it’s related to this problem, but I suspect it is.) > > > > > > - on Mac, when attempting to write a file: "The operation can’t be completed because an > > > unexpected > > > error occurred (error code -50)." > > > > How is this write performed? via Finder or via command-line? > > That error appears when using the Finder. It happens pretty much all the time, and is the > clearest symptom of this problem. Using the command-line, anything that attempts I/O with the > share gives an “Invalid argument” error: > > Mac:~ root# ls /Volumes/ > Macintosh HD module > > Mac:~ root# ls -l /Volumes/ > ls: module: Invalid argument > total 8 > lrwxr-xr-x 1 root wheel 1 24 Aug 15:48 Macintosh HD -> / > > Mac:~ root# touch /Volumes/module/test > touch: /Volumes/module/test: Invalid argument > Mac:~ root# > > > > > > - on Windows, sometimes when writing and sometimes when reading: "Z:\ is not accessible. The > > > parameter is incorrect" > > > > How is this write performed? via Explorer or Powershell? > > Explorer. > > > > > -on Mac and Windows, the contents of the volume in Finder/Explorer windows sometimes > > > disappears, > > > sometimes reappearing later, sometimes not. > > > - on Mac (and similar on Windows), volume icon sometimes disappears - maybe the volume > > > unmounts, > > > but it's unclear. > > > > Is this a clustered Samba setup i.e, with CTDB for high availability? > > Not clustered. Just a plain vanilla Samba. > > > > > All these issues vanish when I switch to sharing the FUSE-mounted volume, but, of course, I > > > lose > > > the advantages of vfs_gluster. > > > > Can you please attach the output of `testparm -s` so as to look through how Samba is setup? > > From our test server (“nomodule-nofruit” is currently the only well-behaved share): > > root@mfsuat-01 ~]#testparm -s > Load smb config files from /etc/samba/smb.conf > rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384) > Processing section "[share1]" > Processing section "[share2]" > Processing section "[nomodule]" > Processing section "[nomodule-nofruit]" > Processing section "[module]" > Processing section "[IPC$]" > WARNING: No path in service IPC$ - making it unavailable! > NOTE: Service IPC$ is flagged unavailable. > Loaded services file OK. > idmap range not specified for domain '*' > ERROR: Invalid idmap range for domain *! > > WARNING: You have some share names that are longer than 12 characters. > These may not be accessible to some older clients. > (Eg. Windows9x, WindowsMe, and smbclient prior to Samba 3.0.) > WARNING: some services use vfs_fruit, others don't. Mounting them in conjunction on OS X clients > results in undefined behaviour. > > Server role: ROLE_DOMAIN_MEMBER > > # Global parameters > [global] > log file = /var/log/samba/log.%m > map to guest = Bad User > max log size = 50 > realm = XXXX.AD.UALBERTA.CA > security = ADS > workgroup = STS > glusterfs:volume = mfs1 > idmap config * : backend = tdb > access based share enum = Yes > force create mode = 0777 > force directory mode = 0777 > include = /mfsmount/admin/etc/mfs/smb_shares.conf > kernel share modes = No > read only = No > smb encrypt = desired > vfs objects = glusterfs > > > [share1] > path = /share1 > valid users = @mfs-sa1@xxxxxxxxxxxxxxxxxxx > > > [share2] > path = /share2 > valid users = @mfs-test-group@xxxxxxxxxxxxxxxxxxx > > > [nomodule] > kernel share modes = Yes > path = /mfsmount/share1 > valid users = @mfs-sa1@xxxxxxxxxxxxxxxxxxx > vfs objects = fruit streams_xattr > > > [nomodule-nofruit] > kernel share modes = Yes > path = /mfsmount/share1 > valid users = @mfs-sa1@xxxxxxxxxxxxxxxxxxx > vfs objects = > > > [module] > path = /share1 > valid users = @mfs-sa1@xxxxxxxxxxxxxxxxxxx > > > [IPC$] > available = No > vfs objects = > > > > > > > My gluster version initially was 3.10.12. I’ve since updated to gluster 3.12.13, but the > > > symptoms > > > are the same. > > > Did you mean 3.10.12 or 3.12.12?(your initial GlusterFS version)? If GlusterFS was at v3.10.12, are you sure that you were experiencing issues with samba v4.7.1? > > > Does this sound familiar to anyone? > > > > All mentioned symptoms point towards a disconnection. We need to find out the origin of this > > disconnection. What do we have in logs under /var/log/samba/? Any errors? > > Actually, yes. Large numbers of: > > [2018/09/12 09:37:17.873711, 0] ../source3/modules/vfs_glusterfs.c:996(vfs_gluster_stat) > glfs_stat(.) failed: Invalid argument Might be related to https://bugzilla.samba.org/show_bug.cgi?id=13585. Can you try installing a version of GlusterFS < 3.12.13 and see if it works normally? > There appears to be some sort of connection remaining, as I can continue to cause these errors in > the server log by attempting I/O with the share. > > This seems like the most promising lead to find the root cause. Hopefully you (or someone) can > interpret what it means, and what I might do about it (besides not using vfs_gluster anymore). > > Regards, > Terry > _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx https://lists.gluster.org/mailman/listinfo/gluster-users
