[Linux-cluster] NFS and gfs problems

Bas van der Vlies basv at sara.nl
Mon Aug 27 08:29:26 UTC 2007


Are we the only site that tried to run cluster version 1.0.4 in combo with 
  NFS?



Bas van der Vlies wrote:
> 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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