Could not fetch a matching mount point w/ mergerfs w/ new OMV mounting points

mkgriesinger · 13. April 2017

I recently added 2 new disks into my OMV3.0.70 setup. I noticed that they are using a new mount point of '/srv/dev-disk-by-label-DataDisk03' instead of '/media/11b1ec9f-2232-4302-ba8b-96120efe7777/'. I added the new disks into Union Filesystems megerfs pool 'primary_datapool' and since then haven't been able to make shared folders to export to NFS or CIFS.

ERROR

Code

Error #0: exception 'OMV\Exception' with message 'Could not fetch a matching mount point from the provided fsname: 'media/85abc43f-81e6-4cb6-9d90-ca24c253c15c:media/f0f3379d-5651-495a-9cc0-2df8d4667ff7:srv/dev-disk-by-label-DataDisk04:srv/dev-disk-by-label-DataDisk03'.' in /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc:118 Stack trace: #0 /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc(61): OMV\System\Filesystem\Backend\Mergerfs::fetchMountPointFromFstabByFsnameAndType('media/85abc43f-...', 'fuse.mergerfs') #1 /usr/share/php/openmediavault/system/filesystem/filesystem.inc(894): OMV\System\Filesystem\Backend\Mergerfs->getImpl('media/85abc43f-...') #2 /usr/share/openmediavault/engined/rpc/sharemgmt.inc(156): OMV\System\Filesystem\Filesystem::getImplByMountPoint('/media/e7fa93b0...') #3 [internal function]: OMVRpcServiceShareMgmt->enumerateSharedFolders(Array, Array) #4 /usr/share/php/openmediavault/rpc/serviceabstract.inc(124): call_user_func_array(Array, Array) #5 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('enumerateShared...', Array, Array) #6 /usr/sbin/omv-engined(536): OMV\Rpc\Rpc::call('ShareMgmt', 'enumerateShared...', Array, Array, 1) #7 {main}

I tried removing the mergerfs pool, uninstalling the union filessystems plugin, rebooting, reinstalling, remaking the pool. However i still have the same issue. I see everything in the /etc/fstab and i also am able to navigate it and view files in putty.

ERROR

Code

Error #0: exception 'OMV\Exception' with message 'Could not fetch a matching mount point from the provided fsname: 'srv/dev-disk-by-label-DataDisk03:media/85abc43f-81e6-4cb6-9d90-ca24c253c15c:srv/dev-disk-by-label-DataDisk04:media/f0f3379d-5651-495a-9cc0-2df8d4667ff7'.' in /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc:118 Stack trace: #0 /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc(61): OMV\System\Filesystem\Backend\Mergerfs::fetchMountPointFromFstabByFsnameAndType('srv/dev-disk-by...', 'fuse.mergerfs') #1 /usr/share/php/openmediavault/system/filesystem/filesystem.inc(894): OMV\System\Filesystem\Backend\Mergerfs->getImpl('srv/dev-disk-by...') #2 /usr/share/openmediavault/engined/rpc/sharemgmt.inc(86): OMV\System\Filesystem\Filesystem::getImplByMountPoint('/srv/547efeb0-1...') #3 [internal function]: OMVRpcServiceShareMgmt->getCandidates(Array, Array) #4 /usr/share/php/openmediavault/rpc/serviceabstract.inc(124): call_user_func_array(Array, Array) #5 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('getCandidates', Array, Array) #6 /usr/sbin/omv-engined(536): OMV\Rpc\Rpc::call('ShareMgmt', 'getCandidates', Array, Array, 1) #7 {main}

I think there is something wrong with the 'new mounting method' and 'mergerfs' and 'shared folders'

Everything is updated, and i am running OMV 3.0.70(Erasmus) Linux 4.9.0-0.bpo.2-amd64

FSTAB

Code

root@omv:/srv# cat /etc/fstab 
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sdg1 during installation
UUID=78a8febe-d9c3-4c98-906e-ff1133b111a3 /               ext4    errors=remount-ro 0       1
# swap was on /dev/sdg5 during installation
UUID=9353b601-62bc-4805-a6a2-cc3db5d30e17 none            swap    sw              0       0
/dev/sr0        /media/cdrom0   udf,iso9660 user,noauto     0       0
# >>> [openmediavault]
UUID=85abc43f-81e6-4cb6-9d90-ca24c253c15c /media/85abc43f-81e6-4cb6-9d90-ca24c253c15c ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
UUID=f0f3379d-5651-495a-9cc0-2df8d4667ff7 /media/f0f3379d-5651-495a-9cc0-2df8d4667ff7 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
UUID=5098254d-36af-433d-88b1-844c8c8fff97 /media/5098254d-36af-433d-88b1-844c8c8fff97 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,discard,acl 0 2
/dev/disk/by-label/Parity1 /srv/dev-disk-by-label-Parity1 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
/dev/disk/by-label/Parity2 /srv/dev-disk-by-label-Parity2 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
/dev/disk/by-label/DataDisk03 /srv/dev-disk-by-label-DataDisk03 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
/dev/disk/by-label/DataDisk04 /srv/dev-disk-by-label-DataDisk04 ext4 defaults,nofail,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0,acl 0 2
/srv/dev-disk-by-label-DataDisk03:/media/85abc43f-81e6-4cb6-9d90-ca24c253c15c:/srv/dev-disk-by-label-DataDisk04:/media/f0f3379d-5651-495a-9cc0-2df8d4667ff7 /srv/547efeb0-1326-4f06-8027-59d3fd60c518 fuse.mergerfs defaults,allow_other,direct_io,use_ino,category.create=epmfs,minfreespace=100G 0 0
# <<< [openmediavault]
tmpfs           /tmp            tmpfs   defaults        0       0

Alles anzeigen

ryecoaaron · 13. April 2017

The unionfilesystems plugin (and remoteshare and zfs plugins) need to be updated for the latest changes to OMV. I would stay on OMV 3.0.69 until they are fixed. @HK-47

mkgriesinger · 13. April 2017

Is there a way to go backwards to OMV 3.0.69? Or do i just wait for a bit to get the updated plugin?

ryecoaaron · 13. April 2017

wget http://packages.openmediavault.org/public/pool/main/o/openmediavault/openmediavault_3.0.69_all.deb
dpkg -i openmediavault_3.0.69_all.deb

mkgriesinger · 13. April 2017

I got OMV 3.0.69 installed and removed / reinstalled /reconfigured mergerfs. However i still get the same type of error.

Code

Error #0: exception 'OMV\Exception' with message 'Could not fetch a matching mount point from the provided fsname: 'srv/dev-disk-by-label-DataDisk03:media/85abc43f-81e6-4cb6-9d90-ca24c253c15c:srv/dev-disk-by-label-DataDisk04:media/f0f3379d-5651-495a-9cc0-2df8d4667ff7'.' in /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc:118 Stack trace: #0 /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc(61): OMV\System\Filesystem\Backend\Mergerfs::fetchMountPointFromFstabByFsnameAndType('srv/dev-disk-by...', 'fuse.mergerfs') #1 /usr/share/php/openmediavault/system/filesystem/filesystem.inc(894): OMV\System\Filesystem\Backend\Mergerfs->getImpl('srv/dev-disk-by...') #2 /usr/share/openmediavault/engined/rpc/sharemgmt.inc(86): OMV\System\Filesystem\Filesystem::getImplByMountPoint('/srv/01ec7116-5...') #3 [internal function]: OMVRpcServiceShareMgmt->getCandidates(Array, Array) #4 /usr/share/php/openmediavault/rpc/serviceabstract.inc(124): call_user_func_array(Array, Array) #5 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('getCandidates', Array, Array) #6 /usr/sbin/omv-engined(536): OMV\Rpc\Rpc::call('ShareMgmt', 'getCandidates', Array, Array, 1) #7 {main}

HK-47 · 13. April 2017

I think I know what the problem is and a downgrade won't help. I have a possible fix committed locally but rather know if it's working before pushing it. Can you check if it works if you change line 108 in /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc from
$mountsFile = strpos($fsname, DIRECTORY_SEPARATOR) !== false ? '/etc/fstab' : '/proc/mounts'; to $mountsFile = strpos($fsname, DIRECTORY_SEPARATOR) === 0 ? '/proc/mounts' : '/etc/fstab';

mkgriesinger · 13. April 2017

@HK-47 I just modified it. Is there something i need to do to reset the configuration? (restart services, start /stop something...) If i wasn't doing a large file transfer i would just reboot.

HK-47 · 13. April 2017

Just execute systemctl restart openmediavault-engined.service.

mkgriesinger · 13. April 2017

@HK-47 Doesn't look like it worked 8(

mergerfs.inc lines 106 - 108

Code

private static function fetchMountPointFromFstabByFsnameAndType($fsname, $type)
    {
        $mountsFile = strpos($fsname, DIRECTORY_SEPARATOR) === 0 ? '/proc/mounts' : '/etc/fstab';

Error Message: (after running systemctl restart openmediavault-engined.service)

Code

Could not fetch a matching mount point from the provided fsname: 'srv/dev-disk-by-label-DataDisk03:media/85abc43f-81e6-4cb6-9d90-ca24c253c15c:srv/dev-disk-by-label-DataDisk04:media/f0f3379d-5651-495a-9cc0-2df8d4667ff7'.

Code

Error #0: exception 'OMV\Exception' with message 'Could not fetch a matching mount point from the provided fsname: 'srv/dev-disk-by-label-DataDisk03:media/85abc43f-81e6-4cb6-9d90-ca24c253c15c:srv/dev-disk-by-label-DataDisk04:media/f0f3379d-5651-495a-9cc0-2df8d4667ff7'.' in /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc:118 Stack trace: #0 /usr/share/php/openmediavault/system/filesystem/backend/mergerfs.inc(61): OMV\System\Filesystem\Backend\Mergerfs::fetchMountPointFromFstabByFsnameAndType('srv/dev-disk-by...', 'fuse.mergerfs') #1 /usr/share/php/openmediavault/system/filesystem/filesystem.inc(894): OMV\System\Filesystem\Backend\Mergerfs->getImpl('srv/dev-disk-by...') #2 /usr/share/openmediavault/engined/rpc/sharemgmt.inc(86): OMV\System\Filesystem\Filesystem::getImplByMountPoint('/srv/a67ecbf7-5...') #3 [internal function]: OMVRpcServiceShareMgmt->getCandidates(Array, Array) #4 /usr/share/php/openmediavault/rpc/serviceabstract.inc(124): call_user_func_array(Array, Array) #5 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('getCandidates', Array, Array) #6 /usr/sbin/omv-engined(536): OMV\Rpc\Rpc::call('ShareMgmt', 'getCandidates', Array, Array, 1) #7 {main}

HK-47 · 13. April 2017

Sorry, it should be '/etc/fstab' : '/proc/mounts' at the end. So just swap them.

mkgriesinger · 13. April 2017

@HK-47 Thank you! We have success!!!

Jetzt mitmachen!