* kernel nlockmgr not registred with port mapper
@ 2004-08-13 10:02 Paul Libert
[not found] ` <20040813104412.GY3516@hyperion.jason.nl>
2004-08-13 16:14 ` Trond Myklebust
0 siblings, 2 replies; 6+ messages in thread
From: Paul Libert @ 2004-08-13 10:02 UTC (permalink / raw)
To: nfs
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Dear List,
Solution to this problem should be easy but I'm to blind to find out so
...
I'm having problem with to acquire locks on file over a nfs mounted
filesystem.
Client system is a Debian Linux with 2.4.25 Debian packaged kernel
Server system is a Debian Linux with 2.4.24 Debian packaged kernel or
2.6.6 Debian packaged kernel.
After looking on the system, it appears that a 'rpcinfo -p' on both
server shows no nlockmgr :
Server 1 :
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 882 status
100024 1 tcp 885 status
100003 2 udp 2049 nfs
100003 2 tcp 2049 nfs
100005 1 udp 897 mountd
100005 2 udp 897 mountd
100005 1 tcp 900 mountd
100005 2 tcp 900 mountd
Server 2 :
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100011 1 udp 795 rquotad
100011 2 udp 795 rquotad
100011 1 tcp 798 rquotad
100011 2 tcp 798 rquotad
100024 1 udp 846 status
100024 1 tcp 849 status
100003 2 udp 2049 nfs
100003 2 tcp 2049 nfs
100005 1 udp 953 mountd
100005 2 udp 953 mountd
100005 1 tcp 956 mountd
100005 2 tcp 956 mountd
390113 1 tcp 7937
Client has the nlockmgr as a registred service :
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100011 1 udp 953 rquotad
100011 2 udp 953 rquotad
100011 1 tcp 956 rquotad
100011 2 tcp 956 rquotad
100024 1 udp 793 status
100024 1 tcp 796 status
100003 2 udp 2049 nfs
100003 2 tcp 2049 nfs
100005 1 udp 805 mountd
100005 2 udp 805 mountd
100005 1 tcp 808 mountd
100005 2 tcp 808 mountd
390113 1 tcp 7937
100021 1 udp 52638 nlockmgr
100021 3 udp 52638 nlockmgr
100021 4 udp 52638 nlockmgr
100021 1 tcp 56348 nlockmgr
100021 3 tcp 56348 nlockmgr
100021 4 tcp 56348 nlockmgr
So obviously, my problem is there.
I investigated further and found out that on both server, the 'lockd'
kernel module was not loaded.
I tought I had found my problem and issused a 'modprobe lockd'
So now, kernel module is loaded but the nlockmgr is still not registred
on portmap.
I've tried restartinf the portmapper and reloading the rpc.server but it
doesn't solve my problem.
Unloading and reloading the kernel module doesn't change anything.
It must be obvious but I keep missing it ...
Any help will be very much appreciated.
Best regards.
Paul Libert
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel nlockmgr not registred with port mapper
[not found] ` <20040813104412.GY3516@hyperion.jason.nl>
@ 2004-08-13 11:11 ` Paul Libert
2004-08-13 12:22 ` Paul Libert
1 sibling, 0 replies; 6+ messages in thread
From: Paul Libert @ 2004-08-13 11:11 UTC (permalink / raw)
To: Gerhard den Hollander; +Cc: nfs
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Gerhard,
All of the three machines are running NFSServer and are 'exports'ing
filesystems.
Paul
Gerhard den Hollander wrote:
> * Paul Libert <Paul.Libert@naturalsciences.be> (Fri, Aug 13, 2004 at 12:02:34PM +0200)
>
>>Dear List,
>>
>>Solution to this problem should be easy but I'm to blind to find out so
>> ...
>>
>>I'm having problem with to acquire locks on file over a nfs mounted
>>filesystem.
>
>
> make sure both machines are running an nfsserver, and make sure both
> machines are exporting a file system
> (yes, indeed, the *client* must be running an NFServer and MUST be
> exporting a filesystem as well.
>
> Currently listening to: ph2004-08-09d103
>
> Gerhard, (faliquid@xs4all.nl) == The Acoustic Motorbiker ==
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel nlockmgr not registred with port mapper
[not found] ` <20040813104412.GY3516@hyperion.jason.nl>
2004-08-13 11:11 ` Paul Libert
@ 2004-08-13 12:22 ` Paul Libert
1 sibling, 0 replies; 6+ messages in thread
From: Paul Libert @ 2004-08-13 12:22 UTC (permalink / raw)
To: Gerhard den Hollander; +Cc: nfs
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OK, forget about it.
Indeed to have nlockmgr appear as a registred portmap service, you need
to have a nfs client connection active of the server (not only exporting
a filesystem but mounting one ...).
A bit devious not ?
Thanks for the infor it helped me anyway.
Regards.
Paul
Gerhard den Hollander wrote:
> * Paul Libert <Paul.Libert@naturalsciences.be> (Fri, Aug 13, 2004 at 12:02:34PM +0200)
>
>>Dear List,
>>
>>Solution to this problem should be easy but I'm to blind to find out so
>> ...
>>
>>I'm having problem with to acquire locks on file over a nfs mounted
>>filesystem.
>
>
> make sure both machines are running an nfsserver, and make sure both
> machines are exporting a file system
> (yes, indeed, the *client* must be running an NFServer and MUST be
> exporting a filesystem as well.
>
> Currently listening to: ph2004-08-09d103
>
> Gerhard, (faliquid@xs4all.nl) == The Acoustic Motorbiker ==
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel nlockmgr not registred with port mapper
2004-08-13 10:02 kernel nlockmgr not registred with port mapper Paul Libert
[not found] ` <20040813104412.GY3516@hyperion.jason.nl>
@ 2004-08-13 16:14 ` Trond Myklebust
2004-08-13 16:32 ` Olaf Kirch
1 sibling, 1 reply; 6+ messages in thread
From: Trond Myklebust @ 2004-08-13 16:14 UTC (permalink / raw)
To: Paul Libert; +Cc: nfs
P=E5 fr , 13/08/2004 klokka 06:02, skreiv Paul Libert:
> Dear List,
>=20
> Solution to this problem should be easy but I'm to blind to find out so=20
> ...
>=20
> I'm having problem with to acquire locks on file over a nfs mounted=20
> filesystem.
>=20
> Client system is a Debian Linux with 2.4.25 Debian packaged kernel
> Server system is a Debian Linux with 2.4.24 Debian packaged kernel or=20
> 2.6.6 Debian packaged kernel.
>=20
> After looking on the system, it appears that a 'rpcinfo -p' on both=20
> server shows no nlockmgr :
>=20
> Server 1 :
> program vers proto port
> 100000 2 tcp 111 portmapper
> 100000 2 udp 111 portmapper
> 100024 1 udp 882 status
> 100024 1 tcp 885 status
> 100003 2 udp 2049 nfs
> 100003 2 tcp 2049 nfs
> 100005 1 udp 897 mountd
> 100005 2 udp 897 mountd
> 100005 1 tcp 900 mountd
> 100005 2 tcp 900 mountd
> Server 2 :
> program vers proto port
> 100000 2 tcp 111 portmapper
> 100000 2 udp 111 portmapper
> 100011 1 udp 795 rquotad
> 100011 2 udp 795 rquotad
> 100011 1 tcp 798 rquotad
> 100011 2 tcp 798 rquotad
> 100024 1 udp 846 status
> 100024 1 tcp 849 status
> 100003 2 udp 2049 nfs
> 100003 2 tcp 2049 nfs
> 100005 1 udp 953 mountd
> 100005 2 udp 953 mountd
> 100005 1 tcp 956 mountd
> 100005 2 tcp 956 mountd
> 390113 1 tcp 7937
>=20
<snip>
> It must be obvious but I keep missing it ...
Looks to me as if you are using the user space NFS server. That never
had any support for the NLM locking protocol. In fact IIRC the addition
of locking support was one of the main motivations at the time for
writing the kernel NFS server (correct me if I'm wrong there Olaf).
Cheers,
Trond
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel nlockmgr not registred with port mapper
2004-08-13 16:14 ` Trond Myklebust
@ 2004-08-13 16:32 ` Olaf Kirch
2004-08-18 9:40 ` Paul Libert
0 siblings, 1 reply; 6+ messages in thread
From: Olaf Kirch @ 2004-08-13 16:32 UTC (permalink / raw)
To: Trond Myklebust; +Cc: Paul Libert, nfs
On Fri, Aug 13, 2004 at 12:14:51PM -0400, Trond Myklebust wrote:
> Looks to me as if you are using the user space NFS server. That never
> had any support for the NLM locking protocol. In fact IIRC the addition
> of locking support was one of the main motivations at the time for
> writing the kernel NFS server (correct me if I'm wrong there Olaf).
That's right. Doing lockd in user space is horrible.
Olaf
--
Olaf Kirch | The Hardware Gods hate me.
okir@suse.de |
---------------+
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_______________________________________________
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel nlockmgr not registred with port mapper
2004-08-13 16:32 ` Olaf Kirch
@ 2004-08-18 9:40 ` Paul Libert
0 siblings, 0 replies; 6+ messages in thread
From: Paul Libert @ 2004-08-18 9:40 UTC (permalink / raw)
To: Olaf Kirch; +Cc: Trond Myklebust, nfs
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Olaf Kirch wrote:
> On Fri, Aug 13, 2004 at 12:14:51PM -0400, Trond Myklebust wrote:
>
>>Looks to me as if you are using the user space NFS server. That never
>>had any support for the NLM locking protocol. In fact IIRC the addition
>>of locking support was one of the main motivations at the time for
>>writing the kernel NFS server (correct me if I'm wrong there Olaf).
>
>
> That's right. Doing lockd in user space is horrible.
>
> Olaf
Got it !
Switching to kernel-space server solved my problem !
Thanks for the help.
Regards.
Paul
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2004-08-18 9:41 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-08-13 10:02 kernel nlockmgr not registred with port mapper Paul Libert
[not found] ` <20040813104412.GY3516@hyperion.jason.nl>
2004-08-13 11:11 ` Paul Libert
2004-08-13 12:22 ` Paul Libert
2004-08-13 16:14 ` Trond Myklebust
2004-08-13 16:32 ` Olaf Kirch
2004-08-18 9:40 ` Paul Libert
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