* Writing / Locking problem with NFSv4
@ 2011-09-16 10:48 Tim
2011-09-20 13:50 ` J. Bruce Fields
0 siblings, 1 reply; 6+ messages in thread
From: Tim @ 2011-09-16 10:48 UTC (permalink / raw)
To: linux-nfs
Hi there
I'm facing a rather strange problem.
>From one client I can mount and access my NFSServer without any problems.
Writing and locking works with a non root user accout.
>From another client (in another subnet), with root everything works fine. If
I use another user, locking doesnt work and also when I create a file with
vim, the *.swp file is not deleted afterwards. But reading works without
problems.
Strange thing is user mapping seems to work correct - at least what ls -la
and the logfiles for idmapd shows.
I appreciate your input! Thanks!
Tim
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Writing / Locking problem with NFSv4
2011-09-16 10:48 Writing / Locking problem with NFSv4 Tim
@ 2011-09-20 13:50 ` J. Bruce Fields
2011-09-21 10:46 ` AW: " Tim
0 siblings, 1 reply; 6+ messages in thread
From: J. Bruce Fields @ 2011-09-20 13:50 UTC (permalink / raw)
To: Tim; +Cc: linux-nfs
On Fri, Sep 16, 2011 at 12:48:45PM +0200, Tim wrote:
> I’m facing a rather strange problem.
>
> From one client I can mount and access my NFSServer without any problems.
> Writing and locking works with a non root user accout.
> From another client (in another subnet), with root everything works fine. If
> I use another user, locking doesnt work and also when I create a file with
> vim, the *.swp file is not deleted afterwards. But reading works without
> problems.
> Strange thing is user mapping seems to work correct – at least what ls -la
> and the logfiles for idmapd shows.
Which client and server? (Linux on both? Which versions?) Are you
using kerberos? If not, are your uid's the same between client and
server? What does your export file look like?
--b.
^ permalink raw reply [flat|nested] 6+ messages in thread
* AW: Writing / Locking problem with NFSv4
2011-09-20 13:50 ` J. Bruce Fields
@ 2011-09-21 10:46 ` Tim
2011-09-21 15:45 ` 'J. Bruce Fields'
0 siblings, 1 reply; 6+ messages in thread
From: Tim @ 2011-09-21 10:46 UTC (permalink / raw)
To: 'J. Bruce Fields'; +Cc: linux-nfs
On Fri, Sep 16, 2011 at 12:48:45PM +0200, Tim wrote:
>> I’m facing a rather strange problem.
>>
>> From one client I can mount and access my NFSServer without any problems.
>> Writing and locking works with a non root user accout.
>> From another client (in another subnet), with root everything works
>> fine. If I use another user, locking doesnt work and also when I
>> create a file with vim, the *.swp file is not deleted afterwards. But
>> reading works without problems.
>> Strange thing is user mapping seems to work correct – at least what ls
>> -la and the logfiles for idmapd shows.
>Which client and server? (Linux on both? Which versions?) Are you using kerberos? If not, are your uid's the same between client and server? What does your export file look like?
Client and Server are both RHEL 6.1. I am not using kerberos. And yes, the uid's are the same, also the gid is the same: 3000 for both.
This is my export file:
/srv/nfs/ 10.1.4.32/255.255.255.224(rw,fsid=0,sync,no_subtree_check,no_root_squash) 10.1.0.9(rw,fsid=0,sync,no_subtree_check,no_root_squash)
/srv/nfs/mail/users 10.1.4.32/255.255.255.224(rw,fsid=1,sync,no_subtree_check,no_root_squash)
/srv/nfs/mail/tmp 10.1.4.32/255.255.255.224(rw,fsid=2,sync,no_subtree_check,no_root_squash)
/srv/nfs/testdata 10.1.0.9(rw,fsid=10,sync,no_subtree_check,no_root_squash)
I tried to take tcpdumps as root and non root user: They look the same to me. However, I'm not so sure what I'm looking for...
Thanks!
Tim
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Writing / Locking problem with NFSv4
2011-09-21 10:46 ` AW: " Tim
@ 2011-09-21 15:45 ` 'J. Bruce Fields'
2011-09-29 14:13 ` AW: " Tim
0 siblings, 1 reply; 6+ messages in thread
From: 'J. Bruce Fields' @ 2011-09-21 15:45 UTC (permalink / raw)
To: Tim; +Cc: linux-nfs
On Wed, Sep 21, 2011 at 12:46:34PM +0200, Tim wrote:
> On Fri, Sep 16, 2011 at 12:48:45PM +0200, Tim wrote:
> >> I’m facing a rather strange problem.
> >>
> >> From one client I can mount and access my NFSServer without any problems.
> >> Writing and locking works with a non root user accout.
> >> From another client (in another subnet), with root everything works
> >> fine. If I use another user, locking doesnt work and also when I
> >> create a file with vim, the *.swp file is not deleted afterwards. But
> >> reading works without problems.
> >> Strange thing is user mapping seems to work correct – at least what ls
> >> -la and the logfiles for idmapd shows.
>
> >Which client and server? (Linux on both? Which versions?) Are you using kerberos? If not, are your uid's the same between client and server? What does your export file look like?
>
> Client and Server are both RHEL 6.1. I am not using kerberos. And yes, the uid's are the same, also the gid is the same: 3000 for both.
> This is my export file:
>
> /srv/nfs/ 10.1.4.32/255.255.255.224(rw,fsid=0,sync,no_subtree_check,no_root_squash) 10.1.0.9(rw,fsid=0,sync,no_subtree_check,no_root_squash)
> /srv/nfs/mail/users 10.1.4.32/255.255.255.224(rw,fsid=1,sync,no_subtree_check,no_root_squash)
> /srv/nfs/mail/tmp 10.1.4.32/255.255.255.224(rw,fsid=2,sync,no_subtree_check,no_root_squash)
> /srv/nfs/testdata 10.1.0.9(rw,fsid=10,sync,no_subtree_check,no_root_squash)
>
> I tried to take tcpdumps as root and non root user: They look the same to me. However, I'm not so sure what I'm looking for...
Hm. Sounds possibly like
http://marc.info/?t=129183437900003&r=1&w=2
--b.
^ permalink raw reply [flat|nested] 6+ messages in thread
* AW: Writing / Locking problem with NFSv4
2011-09-21 15:45 ` 'J. Bruce Fields'
@ 2011-09-29 14:13 ` Tim
2011-09-30 19:42 ` 'J. Bruce Fields'
0 siblings, 1 reply; 6+ messages in thread
From: Tim @ 2011-09-29 14:13 UTC (permalink / raw)
To: 'J. Bruce Fields'; +Cc: linux-nfs
>On Wed, Sep 21, 2011 at 12:46:34PM +0200, Tim wrote:
>> On Fri, Sep 16, 2011 at 12:48:45PM +0200, Tim wrote:
>> >> I’m facing a rather strange problem.
>> >>
>> >> From one client I can mount and access my NFSServer without any problems.
>> >> Writing and locking works with a non root user accout.
>> >> From another client (in another subnet), with root everything works
>> >> fine. If I use another user, locking doesnt work and also when I
>> >> create a file with vim, the *.swp file is not deleted afterwards.
>> >> But reading works without problems.
>> >> Strange thing is user mapping seems to work correct – at least what
>> >> ls -la and the logfiles for idmapd shows.
>>
>> >Which client and server? (Linux on both? Which versions?) Are you using kerberos? If not, are your uid's the same between client and server? What does your export file look like?
>
>> Client and Server are both RHEL 6.1. I am not using kerberos. And yes, the uid's are the same, also the gid is the same: 3000 for both.
>> This is my export file:
>
>> /srv/nfs/ 10.1.4.32/255.255.255.224(rw,fsid=0,sync,no_subtree_check,no_root_squash) 10.1.0.9(rw,fsid=0,sync,no_subtree_check,no_root_squash)
>> /srv/nfs/mail/users 10.1.4.32/255.255.255.224(rw,fsid=1,sync,no_subtree_check,no_root_squash)
>> /srv/nfs/mail/tmp 10.1.4.32/255.255.255.224(rw,fsid=2,sync,no_subtree_check,no_root_squash)
>> /srv/nfs/testdata 10.1.0.9(rw,fsid=10,sync,no_subtree_check,no_root_squash)
>>
>> I tried to take tcpdumps as root and non root user: They look the same to me. However, I'm not so sure what I'm looking for...
>Hm. Sounds possibly like
> http://marc.info/?t=129183437900003&r=1&w=2
I just found out the reason for this whole strange behaviour: The folder, where the device is mounted, must have the right owner and / or rights. That means, if I mount it to /srv/data on client side, the folder data must belong to the user 3000.
I just checked: vim *.swp - files are deleted afterwards and even locking is working!
But thank you anyway, Bruce!
Tim
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Writing / Locking problem with NFSv4
2011-09-29 14:13 ` AW: " Tim
@ 2011-09-30 19:42 ` 'J. Bruce Fields'
0 siblings, 0 replies; 6+ messages in thread
From: 'J. Bruce Fields' @ 2011-09-30 19:42 UTC (permalink / raw)
To: Tim; +Cc: linux-nfs
On Thu, Sep 29, 2011 at 04:13:17PM +0200, Tim wrote:
> >On Wed, Sep 21, 2011 at 12:46:34PM +0200, Tim wrote:
> >> On Fri, Sep 16, 2011 at 12:48:45PM +0200, Tim wrote:
> >> >> I’m facing a rather strange problem.
> >> >>
> >> >> From one client I can mount and access my NFSServer without any problems.
> >> >> Writing and locking works with a non root user accout.
> >> >> From another client (in another subnet), with root everything works
> >> >> fine. If I use another user, locking doesnt work and also when I
> >> >> create a file with vim, the *.swp file is not deleted afterwards.
> >> >> But reading works without problems.
> >> >> Strange thing is user mapping seems to work correct – at least what
> >> >> ls -la and the logfiles for idmapd shows.
> >>
> >> >Which client and server? (Linux on both? Which versions?) Are you using kerberos? If not, are your uid's the same between client and server? What does your export file look like?
> >
> >> Client and Server are both RHEL 6.1. I am not using kerberos. And yes, the uid's are the same, also the gid is the same: 3000 for both.
> >> This is my export file:
> >
> >> /srv/nfs/ 10.1.4.32/255.255.255.224(rw,fsid=0,sync,no_subtree_check,no_root_squash) 10.1.0.9(rw,fsid=0,sync,no_subtree_check,no_root_squash)
> >> /srv/nfs/mail/users 10.1.4.32/255.255.255.224(rw,fsid=1,sync,no_subtree_check,no_root_squash)
> >> /srv/nfs/mail/tmp 10.1.4.32/255.255.255.224(rw,fsid=2,sync,no_subtree_check,no_root_squash)
> >> /srv/nfs/testdata 10.1.0.9(rw,fsid=10,sync,no_subtree_check,no_root_squash)
> >>
> >> I tried to take tcpdumps as root and non root user: They look the same to me. However, I'm not so sure what I'm looking for...
>
> >Hm. Sounds possibly like
>
> > http://marc.info/?t=129183437900003&r=1&w=2
>
> I just found out the reason for this whole strange behaviour: The folder, where the device is mounted, must have the right owner and / or rights. That means, if I mount it to /srv/data on client side, the folder data must belong to the user 3000.
> I just checked: vim *.swp - files are deleted afterwards and even locking is working!
OK, so you just didn't have write permissions to that directory? Makes
sense.--b.
>
> But thank you anyway, Bruce!
> Tim
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-09-30 19:42 UTC | newest]
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2011-09-16 10:48 Writing / Locking problem with NFSv4 Tim
2011-09-20 13:50 ` J. Bruce Fields
2011-09-21 10:46 ` AW: " Tim
2011-09-21 15:45 ` 'J. Bruce Fields'
2011-09-29 14:13 ` AW: " Tim
2011-09-30 19:42 ` 'J. Bruce Fields'
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