[Linux-cluster] NFS and gfs problems

[Bas van der Vlies]

We just downgraded to versions 1.0.3 with some cvs updates kernel 2.6.17.4 
and nfs-kernel-server 1.0.6.

Now we can run vim/tar/bonnie++ and other unix utilities without any problem.

With this version we experienced problems when the gfs filesystems becomimg 
full the nfsd daemons will fail and to the load of the machine becomes 
equal to number of nfsd daemoms and the system is unresponsive.

Regards

Bas van der Vlies wrote:
> gfs version 1.0.4
> kernel 2.6.20.16
> nfs-common/etch uptodate 1:1.0.10-6+etch.1
> nfs-kernel-server/etch uptodate 1:1.0.10-6+etch.1
> 
> We have a five node fileserver cluster. The GFS file system works
> perfectly, but on our clients we have major problems. See examples below
> 
> Do other people see this problems and is there a solution for this problem?
> 
> 
> bas at gb2-r39n16:~$ vim j
> E72: Close error on swap filebas at gb2-r39n16:~$
> 
> bas at gb2-r39n16:~$ tar cvf bin.tar bin
> bin/
> bin/mpicc-wrapper-data.txt
> bin/mpiexec
> bin/setmvapich
> bin/modenv
> bin/jobnodes
> bin/SMclient
> bin/ssh
> tar: bin.tar: Warning: Cannot close: Invalid argument
> bas at gb2-r39n16:~$
> 
> 
> 
> bas at gb2-r39n16:~$ /usr/sbin/bonnie++
> Writing with putc()...done
> Writing intelligently...done
> Rewriting...Can't read a full block, only got 3944 bytes.
> Can't read a full block, only got 8040 bytes.
> Can't read a full block, only got 3944 bytes.
> Can't read a full block, only got 8040 bytes.
> Can't read a full block, only got 3944 bytes.
> Can't read a full block, only got 3944 bytes.
> Can't read a full block, only got 3944 bytes.
> Can't read a full block, only got 8040 bytes.
> Bad seek offset
> Error in seek(0)
> 
> 
> --
> ********************************************************************
> *                                                                  *
> *  Bas van der Vlies                     e-mail: basv at sara.nl      *
> *  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
> *  Kruislaan 415                         fax:    +31 20 6683167    *
> *  1098 SJ Amsterdam                                               *
> *                                                                  *
> ********************************************************************
> 
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-- 
********************************************************************
*                                                                  *
*  Bas van der Vlies                     e-mail: basv at sara.nl      *
*  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
*  Kruislaan 415                         fax:    +31 20 6683167    *
*  1098 SJ Amsterdam                                               *
*                                                                  *
********************************************************************