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stephane.purnelle@corman.be

2007-Oct-17 11:09 UTC

[Samba] problem with kernel oplock

Hi,

We test a software called Safekit.
This software permit to have a replicated FS and can start some apps from 
a particular script.
We use this startup script for starting SaMBa. 

We make this test : 

NODE1 : Samba not actif (SECOND)
NODE2 : Samba is running (PRIM)

open a file with samba and modify it
make swap
I try to save and no possible to save, but if I close the file and reopen 
it it works fine.

On the log file, we have : 

[2007/10/17 12:25:50, 4] smbd/open.c:open_file_ntcreate(1605)
  calling open_file with flags=0x0 flags2=0x0 mode=0760, access_mask = 
0x20089, open_access_mask = 0x20089
[2007/10/17 12:25:50, 2] smbd/open.c:open_file(391)
  spu opened file CORINF/cmde/CDE5021.ods read=Yes write=No (numopen=3)
[2007/10/17 12:25:50, 3] smbd/oplock_linux.c:linux_set_kernel_oplock(173)
  linux_set_kernel_oplock: Refused oplock on file CORINF/cmde/CDE5021.ods, 
fd = 26, dev = 14, inode = 403381390. (Ressource temporairement non 
disponible)
[2007/10/17 12:25:50, 5] smbd/nttrans.c:reply_ntcreate_and_X(938)
  reply_ntcreate_and_X: fnum = 12684, open name = CORINF/cmde/CDE5021.ods
[2007/10/17 12:25:50, 5] lib/util.c:show_msg(484)
[2007/10/17 12:25:50, 5] lib/util.c:show_msg(494)

Anyone can explain this little problem ?

Samba 3.0.26a
The shared directory is accesible with a local mount of a NFS share.

thanks

        St?phane Purnelle

-----------------------------------
St?phane PURNELLE                         stephane.purnelle@corman.be
Service Informatique       Corman S.A.           Tel : 00 32 087/342467

stephane.purnelle@corman.be

2007-Oct-19 08:50 UTC

head link

RE [Samba] problem with kernel oplock

NFS precision : 

127.0.0.1:/srv/vol2_For_SafeKit_Replication on /srv/vol2 type nfs 
(rw,proto=udp,port=5700,hard,timeo=5,retrans=6,nolock,addr=127.0.0.1)

You can see that NFS no lock the file.

I tried with kernel oplocks = no but the problem is the same, the message 
has just changed from I/O problem to access right problem.

Where is the problem ?

thanks 

        St?phane Purnelle

-----------------------------------
St?phane PURNELLE                         stephane.purnelle@corman.be
Service Informatique       Corman S.A.           Tel : 00 32 087/342467



stephane.purnelle@corman.be 
Envoy? par : samba-bounces+stephane.purnelle=corman.be@lists.samba.org
17/10/2007 13:11

A
samba@lists.samba.org
cc

Objet
[Samba] problem with kernel oplock






Hi,

We test a software called Safekit.
This software permit to have a replicated FS and can start some apps from 
a particular script.
We use this startup script for starting SaMBa. 

We make this test : 

NODE1 : Samba not actif (SECOND)
NODE2 : Samba is running (PRIM)

open a file with samba and modify it
make swap
I try to save and no possible to save, but if I close the file and reopen 
it it works fine.

On the log file, we have : 

[2007/10/17 12:25:50, 4] smbd/open.c:open_file_ntcreate(1605)
  calling open_file with flags=0x0 flags2=0x0 mode=0760, access_mask = 
0x20089, open_access_mask = 0x20089
[2007/10/17 12:25:50, 2] smbd/open.c:open_file(391)
  spu opened file CORINF/cmde/CDE5021.ods read=Yes write=No (numopen=3)
[2007/10/17 12:25:50, 3] smbd/oplock_linux.c:linux_set_kernel_oplock(173)
  linux_set_kernel_oplock: Refused oplock on file CORINF/cmde/CDE5021.ods, 

fd = 26, dev = 14, inode = 403381390. (Ressource temporairement non 
disponible)
[2007/10/17 12:25:50, 5] smbd/nttrans.c:reply_ntcreate_and_X(938)
  reply_ntcreate_and_X: fnum = 12684, open name = CORINF/cmde/CDE5021.ods
[2007/10/17 12:25:50, 5] lib/util.c:show_msg(484)
[2007/10/17 12:25:50, 5] lib/util.c:show_msg(494)

Anyone can explain this little problem ?

Samba 3.0.26a
The shared directory is accesible with a local mount of a NFS share.

thanks

        St?phane Purnelle

-----------------------------------
St?phane PURNELLE                         stephane.purnelle@corman.be
Service Informatique       Corman S.A.           Tel : 00 32 087/342467
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Mark Adams

2007-Oct-29 16:01 UTC

head link

RE [Samba] problem with kernel oplock

have you tried both;
oplocks = no
level2 oplocks = no

Mark

On Fri, Oct 19, 2007 at 10:49:10AM +0200, stephane.purnelle@corman.be
wrote:> NFS precision : 
> 
> 127.0.0.1:/srv/vol2_For_SafeKit_Replication on /srv/vol2 type nfs 
> (rw,proto=udp,port=5700,hard,timeo=5,retrans=6,nolock,addr=127.0.0.1)
> 
> You can see that NFS no lock the file.
> 
> I tried with kernel oplocks = no but the problem is the same, the message 
> has just changed from I/O problem to access right problem.
> 
> Where is the problem ?
> 
> thanks 
> 
>         St?phane Purnelle
> 
> -----------------------------------
> St?phane PURNELLE                         stephane.purnelle@corman.be
> Service Informatique       Corman S.A.           Tel : 00 32 087/342467
> 
> 
> 
> stephane.purnelle@corman.be 
> Envoy? par : samba-bounces+stephane.purnelle=corman.be@lists.samba.org
> 17/10/2007 13:11
> 
> A
> samba@lists.samba.org
> cc
> 
> Objet
> [Samba] problem with kernel oplock
> 
> 
> 
> 
> 
> 
> Hi,
> 
> We test a software called Safekit.
> This software permit to have a replicated FS and can start some apps from 
> a particular script.
> We use this startup script for starting SaMBa. 
> 
> We make this test : 
> 
> NODE1 : Samba not actif (SECOND)
> NODE2 : Samba is running (PRIM)
> 
> open a file with samba and modify it
> make swap
> I try to save and no possible to save, but if I close the file and reopen 
> it it works fine.
> 
> On the log file, we have : 
> 
> [2007/10/17 12:25:50, 4] smbd/open.c:open_file_ntcreate(1605)
>   calling open_file with flags=0x0 flags2=0x0 mode=0760, access_mask = 
> 0x20089, open_access_mask = 0x20089
> [2007/10/17 12:25:50, 2] smbd/open.c:open_file(391)
>   spu opened file CORINF/cmde/CDE5021.ods read=Yes write=No (numopen=3)
> [2007/10/17 12:25:50, 3] smbd/oplock_linux.c:linux_set_kernel_oplock(173)
>   linux_set_kernel_oplock: Refused oplock on file CORINF/cmde/CDE5021.ods, 
> 
> fd = 26, dev = 14, inode = 403381390. (Ressource temporairement non 
> disponible)
> [2007/10/17 12:25:50, 5] smbd/nttrans.c:reply_ntcreate_and_X(938)
>   reply_ntcreate_and_X: fnum = 12684, open name = CORINF/cmde/CDE5021.ods
> [2007/10/17 12:25:50, 5] lib/util.c:show_msg(484)
> [2007/10/17 12:25:50, 5] lib/util.c:show_msg(494)
> 
> Anyone can explain this little problem ?
> 
> Samba 3.0.26a
> The shared directory is accesible with a local mount of a NFS share.
> 
> thanks
> 
>         St?phane Purnelle
> 
> -----------------------------------
> St?phane PURNELLE                         stephane.purnelle@corman.be
> Service Informatique       Corman S.A.           Tel : 00 32 087/342467
> -- 
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/listinfo/samba
> 
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/listinfo/samba

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