[Users] NFS sanlock fails on Fedora 19 - 3.3RC (was add NFS Domain fails)

[Markus Stockhausen]

Hello,

after some further investigation I think I found the reason 
but do not know how to fix it best. On my Fedora 19 host
sanlock is running as user sanlock (id 179). That user has 
no access to files created by user vdsm (id 36). See logs
attached.

The node installation was done the standard way through
ovirt-engine 3.3. Maybe I missed some setp in the installation 
process but I would expect this to work out of the box.

Can anyone tell me what the expected setup is. Should I file 
a bug for that?

Markus

[root at colovn1 etc]# ps -ef | grep sanlock
sanlock   1125     1  0 10:19 ?        00:00:00 sanlock daemon -U sanlock -G sanlock
root      1126  1125  0 10:19 ?        00:00:00 sanlock daemon -U sanlock -G sanlock
root      1128     1  0 10:19 ?        00:00:00 wdmd -G sanlock
root      2307  1401  0 10:39 pts/0    00:00:00 grep --color=auto sanlock

strace -p 1125 -F 
...
2094  mprotect(0x7fa020000000, 135168, PROT_READ|PROT_WRITE) = 0
2094  open("/rhev/data-center/mnt/10.10.30.251:_var_nas5_ovirt/4250f423-459c-40da-9a0e-d5b6fe853b1b/dom_md/ids", O_RDWR|O_SYNC|O_DIRECT) = -1 EACCES (Permission denied)
2094  gettid()                          = 2094
...

[root at colovn1 etc]# cat /etc/sysconfig/sanlock
# SANLOCKOPTS -- set the command line options for the sanlock daemon
# See sanlock man page for full list of command line options.
#
# Include "-U sanlock -G sanlock" in the option string unless
# also changing the SANLOCKUSER above.
#
# To disable use of watchdog via wdmd
#SANLOCKOPTS="-U sanlock -G sanlock -w 0"
#
# To disable use of watchdog via wdmd and disable high priority features
#SANLOCKOPTS="-U sanlock -G sanlock -w 0 -h 0"
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