[Lustre-discuss] Lustre installation and configuration problems
Carlos Santana
neubyr at gmail.com
Tue Jun 16 13:09:39 PDT 2009
The '$ modprobe -l lustre*' did not show any module on a patchless client.
modprobe -v returns 'FATAL: Module lustre not found'.
How do I install a patchless client?
I have tried lustre-client-modules and lustre-client-ver rpm packages in
both sequences. Am I missing anything?
Thanks,
CS.
On Tue, Jun 16, 2009 at 2:28 PM, Cliff White <Cliff.White at sun.com> wrote:
> Carlos Santana wrote:
>
>> The lctlt ping and 'net up' failed with the following messages:
>> --- ---
>> [root at localhost ~]# lctl ping 10.0.0.42
>> opening /dev/lnet failed: No such device
>> hint: the kernel modules may not be loaded
>> failed to ping 10.0.0.42 at tcp: No such device
>>
>> [root at localhost ~]# lctl network up
>> opening /dev/lnet failed: No such device
>> hint: the kernel modules may not be loaded
>> LNET configure error 19: No such device
>>
>
> Make sure modules are unloaded, then try modprobe -v.
> Looks like you have lnet mis-configured, if your module options are wrong,
> you will see an error during the modprobe.
> cliffw
>
> --- ---
>>
>> I tried lustre_rmmod and depmod commands and it did not return any error
>> messages. Any further clues? Reinstall patchless client again?
>>
>> -
>> CS.
>>
>>
>> On Tue, Jun 16, 2009 at 1:32 PM, Cliff White <Cliff.White at sun.com<mailto:
>> Cliff.White at sun.com>> wrote:
>>
>> Carlos Santana wrote:
>>
>> I was able to run lustre_rmmod and depmod successfully. The
>> '$lctl list_nids' returned the server ip address and interface
>> (tcp0).
>>
>> I tried to mount the file system on a remote client, but it
>> failed with the following message.
>> --- ---
>> [root at localhost ~]# mount -t lustre 10.0.0.42 at tcp0:/lustre
>> /mnt/lustre
>> mount.lustre: mount 10.0.0.42 at tcp0:/lustre at /mnt/lustre
>> failed: No such device
>> Are the lustre modules loaded?
>> Check /etc/modprobe.conf and /proc/filesystems
>> Note 'alias lustre llite' should be removed from modprobe.conf
>> --- ---
>>
>> However, the mounting is successful on a single node
>> configuration - with client on the same machine as MDS and OST.
>> Any clues? Where to look for logs and debug messages?
>>
>>
>> Syslog || /var/log/messages is the normal place.
>>
>> You can use 'lctl ping' to verify that the client can reach the server.
>> Usually in these cases, it's a network/name misconfiguration.
>>
>> Run 'tunefs.lustre --print' on your servers, and verify that mgsnode=
>> is correct.
>>
>> cliffw
>>
>>
>> Thanks,
>> CS.
>>
>>
>>
>>
>>
>> On Tue, Jun 16, 2009 at 12:16 PM, Cliff White
>> <Cliff.White at sun.com <mailto:Cliff.White at sun.com>
>> <mailto:Cliff.White at sun.com <mailto:Cliff.White at sun.com>>> wrote:
>>
>> Carlos Santana wrote:
>>
>> Thanks Kevin..
>>
>> Please read:
>>
>> http://manual.lustre.org/manual/LustreManual16_HTML/ConfiguringLustre.html#50401328_pgfId-1289529
>>
>> Those instructions are identical for 1.6 and 1.8.
>>
>> For current lustre, only two commands are used for
>> configuration.
>> mkfs.lustre and mount.
>>
>>
>> Usually when lustre_rmmod returns that error, you run it a
>> second
>> time, and it will clear things. Unless you have live mounts or
>> network connections.
>>
>> cliffw
>>
>>
>> I am referring to 1.8 manual, but I was also referring to
>> HowTo
>> page on wiki which seems to be for 1.6. The HowTo page
>>
>> http://wiki.lustre.org/index.php/Lustre_Howto#Using_Supplied_Configuration_Tools
>> mentions abt lmc, lconf, and lctl.
>>
>> The modules are installed in the right place. The '$
>> lustre_rmmod' resulted in following o/p:
>> [root at localhost 2.6.18-92.1.17.el5_lustre.1.8.0smp]#
>> lustre_rmmod
>> ERROR: Module obdfilter is in use
>> ERROR: Module ost is in use
>> ERROR: Module mds is in use
>> ERROR: Module fsfilt_ldiskfs is in use
>> ERROR: Module mgs is in use
>> ERROR: Module mgc is in use by mgs
>> ERROR: Module ldiskfs is in use by fsfilt_ldiskfs
>> ERROR: Module lov is in use
>> ERROR: Module lquota is in use by obdfilter,mds
>> ERROR: Module osc is in use
>> ERROR: Module ksocklnd is in use
>> ERROR: Module ptlrpc is in use by
>> obdfilter,ost,mds,mgs,mgc,lov,lquota,osc
>> ERROR: Module obdclass is in use by
>>
>> obdfilter,ost,mds,fsfilt_ldiskfs,mgs,mgc,lov,lquota,osc,ptlrpc
>> ERROR: Module lnet is in use by ksocklnd,ptlrpc,obdclass
>> ERROR: Module lvfs is in use by
>>
>> obdfilter,ost,mds,fsfilt_ldiskfs,mgs,mgc,lov,lquota,osc,ptlrpc,obdclass
>> ERROR: Module libcfs is in use by
>>
>> obdfilter,ost,mds,fsfilt_ldiskfs,mgs,mgc,lov,lquota,osc,ksocklnd,ptlrpc,obdclass,lnet,lvfs
>>
>> Do I need to shutdown these services? How can I do that?
>>
>> Thanks,
>> CS.
>>
>>
>> On Tue, Jun 16, 2009 at 11:36 AM, Kevin Van Maren
>> <Kevin.Vanmaren at sun.com <mailto:Kevin.Vanmaren at sun.com>
>> <mailto:Kevin.Vanmaren at sun.com <mailto:Kevin.Vanmaren at sun.com>>
>> <mailto:Kevin.Vanmaren at sun.com
>> <mailto:Kevin.Vanmaren at sun.com> <mailto:Kevin.Vanmaren at sun.com
>> <mailto:Kevin.Vanmaren at sun.com>>>>
>>
>> wrote:
>>
>> I think lconf and lmc went away with Lustre 1.6. Are you
>> sure you
>> are looking at the 1.8 manual, and not directions for
>> 1.4?
>>
>> /usr/sbin/lctl should be in the lustre-<version> RPM.
>> Do a:
>> # rpm -q -l
>> lustre-1.8.0-2.6.18_92.1.17.el5_lustre.1.8.0smp
>>
>>
>> Do make sure the modules are installed in the right
>> place:
>> # cd /lib/modules/`uname -r`
>> # find . | grep lustre.ko
>>
>> If it shows up, then do:
>> # lustre_rmmod
>> # depmod
>> and try again.
>>
>> Otherwise, figure out where your modules are installed:
>> # uname -r
>> # cd /lib/modules
>> # find . | grep lustre.ko
>>
>>
>> You can also double-check the NID. On the MSD server, do
>> # lctl list_nids
>>
>> Should show 10.0.0.42 at tcp0
>>
>> Kevin
>>
>>
>>
>>
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