[lustre-discuss] lustre client 2.9 cannot mount 2.10.0 OSTs

[Riccardo Veraldi]

I figure out the problem was a wrong setting client side.

On 8/7/17 8:09 PM, Riccardo Veraldi wrote:
> it is like if my /etc/modprobe.d/lustre.conf gets completely ignored
> when lnet module is loaded
>
> On 8/7/17 7:05 PM, Cowe, Malcolm J wrote:
>> Lustre file system names cannot exceed 8 characters in length, but “scratch12” is 9 characters. Try changing the fsname to a smaller string. You can do this with tunefs.lustre on all the storage targets, but I can’t remember if you need to use --erase-params and recreate all the options. Alternatively, reformat.
>>
>> Malcolm.
>>
>> On 8/8/17, 11:30 am, "lustre-discuss on behalf of Riccardo Veraldi" <lustre-discuss-bounces at lists.lustre.org on behalf of Riccardo.Veraldi at cnaf.infn.it> wrote:
>>
>>     trying to debug more this problem looks like tcp port 9888 is closed on
>>     the MDS.
>>     this is weird. lnet module is running. There is no firewall and OSSs and
>>     MDS are on the same subnet.
>>     but I Cannot connect to port 9888.
>>     There is anything which changed in Lustre 2.10.0 related to lnet and TCP
>>     ports that I need to take care of in the configuration ?
>>     
>>     On 8/7/17 6:13 PM, Riccardo Veraldi wrote:
>>     > Hello,
>>     >
>>     > I have a new Lustre cluster based on Lustre 2.10.0/ZFS 0.7.0 on Centos 7.3
>>     > Lustre FS creation went smooth.
>>     > When I tryed then to mount from the clients, Lustre is not able to mount
>>     > any of the OSTs.
>>     > It stops at MGS/MDT level.
>>     >
>>     > this is from the client side:
>>     >
>>     > mount.lustre: mount 192.168..48.254 at tcp2:/scratch12 at
>>     > /reg/data/scratch12 failed: Invalid argument
>>     > This may have multiple causes.
>>     > Is 'scratch12' the correct filesystem name?
>>     > Are the mount options correct?
>>     > Check the syslog for more info.
>>     >
>>     > Aug  7 17:58:53 psana1510 kernel: [285130.463377] LustreError:
>>     > 29240:0:(mgc_request.c:335:config_log_add()) logname scratch12-client is
>>     > too long
>>     > Aug  7 17:58:53 psana1510 kernel: [285130.463772] Lustre:
>>     > 3333:0:(client.c:2114:ptlrpc_expire_one_request()) @@@ Request sent has
>>     > failed due to network error: [sent 1502153933/real 1502153933] 
>>     > req at ffff88203d75ec00 x1574823717093632/t0(0)
>>     > o250->MGC192.168.48.254 at tcp2@192.168.48.254 at tcp2:26/25 lens 520/544 e 0
>>     > to 1 dl 1502153938 ref 1 fl Rpc:eXN/0/ffffffff rc 0/-1
>>     > Aug  7 17:58:53 psana1510 kernel: [285130.469156] LustreError: 15b-f:
>>     > MGC192.168.48.254 at tcp2: The configuration from log
>>     > 'scratch12-client'failed from the MGS (-22).  Make sure this client and
>>     > the MGS are running compatible versions of Lustre.
>>     > Aug  7 17:58:53 psana1510 kernel: [285130.472072] Lustre: Unmounted
>>     > scratch12-client
>>     > Aug  7 17:58:53 psana1510 kernel: [285130.473827] LustreError:
>>     > 29240:0:(obd_mount.c:1505:lustre_fill_super()) Unable to mount  (-22)
>>     >
>>     > from the MDS side there is nothing in syslog. So I tried to engage tcpdump:
>>     >
>>     > 17:58:53.745610 IP psana1510.pcdsn.1023 >
>>     > psanamds12.pcdsn.cyborg-systems: Flags [S], seq 1356843681, win 29200,
>>     > options [mss 1460,sackOK,TS val 284847388 ecr 0,nop,wscale 7], length 0
>>     > 17:58:53.745644 IP psanamds12.pcdsn.cyborg-systems >
>>     > psana1510.pcdsn.1023: Flags [R.], seq 0, ack 1356843682, win 0, length 0
>>     > 17:58:58.757421 ARP, Request who-has psanamds12.pcdsn tell
>>     > psana1510.pcdsn, length 46
>>     > 17:58:58.757441 ARP, Reply psanamds12.pcdsn is-at 00:1a:4a:16:01:56 (oui
>>     > Unknown), length 28
>>     >
>>     > OSS, nothing in the log file or in tcpdump
>>     >
>>     > lustre client is 2.9 and the server 2.10.0
>>     >
>>     > I have no firewall running and no SElinux
>>     >
>>     > this never happened to me before. I am usually running older lustre
>>     > versions on clients but I never had this problem before.
>>     > Any hint ?
>>     >
>>     > thank you very much
>>     >
>>     > Rick
>>     >
>>     >
>>     >
>>     > _______________________________________________
>>     > lustre-discuss mailing list
>>     > lustre-discuss at lists.lustre.org
>>     > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
>>     
>>     
>>     _______________________________________________
>>     lustre-discuss mailing list
>>     lustre-discuss at lists.lustre.org
>>     http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
>>     
>>
>> _______________________________________________
>> lustre-discuss mailing list
>> lustre-discuss at lists.lustre.org
>> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
>>
> _______________________________________________
> lustre-discuss mailing list
> lustre-discuss at lists.lustre.org
> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
>