[Lustre-discuss] o2ib cant ping/mount Infiniband NID
subbu kl
subbukl at gmail.com
Thu Jan 15 21:00:48 PST 2009
Liang,
after executing following echo :
echo +neterror > /proc/sys/lnet/printk
now lctlt ping shows the following error
# lctl ping 172.24.198.112 at o2ib
failed to ping 172.24.198.112 at o2ib: Input/output error
Jan 16 10:24:14 p128 kernel: Lustre:
2750:0:(o2iblnd_cb.c:2687:kiblnd_cm_callback()) 172.24.198.112 at o2ib: ROUTE
ERROR -22
Jan 16 10:24:14 p128 kernel: Lustre:
2750:0:(o2iblnd_cb.c:2101:kiblnd_peer_connect_failed()) Deleting messages
for 172.24.198.112 at o2ib: connection failed
Looks like some problem with "IB connection manager" !
1. do we have any help docs to setup IPoIB and Lustre, lustre operation
manual has very minimal info about this . I think I am missing some IPoIB
setup part here.
2. or is it mannual assignment of IP addresses to "ib0" is creating some
problem
*Some more supporting info :
*subnet manager of following version is also running : OpenSM 3.1.8
Initially I got this error for MDS mount
Jan 16 09:45:20 p128 kernel: LustreError:
4991:0:(linux-tcpip.c:124:libcfs_ipif_query()) Can't get IP address for
interface ib0
Jan 16 09:45:20 p128 kernel: LustreError:
4991:0:(o2iblnd.c:1563:kiblnd_startup()) Can't query IPoIB interface ib0:
-99
Jan 16 09:45:21 p128 kernel: LustreError: 105-4: Error -100 starting up LNI
o2ib
Jan 16 09:45:21 p128 kernel: LustreError:
4991:0:(events.c:707:ptlrpc_init_portals()) network initialisation failed
Jan 16 09:45:21 p128 modprobe: WARNING: Error inserting ptlrpc
(/lib/modules/2.6.18-53.1.14.el5_lustre.1.6.5.1smp/kernel/fs/lustre/ptlrpc.ko):
Input/output error
Jan 16 09:45:21 p128 modprobe: WARNING: Error inserting osc
(/lib/modules/2.6.18-53.1.14.el5_lustre.1.6.5.1smp/kernel/fs/lustre/osc.ko):
Unknown symbol in module, or unknown parameter (see dmesg)
Jan 16 09:45:21 p128 kernel: osc: Unknown symbol ldlm_prep_enqueue_req
Jan 16 09:45:21 p128 kernel: osc: Unknown symbol ldlm_resource_get
Jan 16 09:45:21 p128 kernel: osc: Unknown symbol ptlrpc_lprocfs_register_obd
.
.
.
then I mannually set the IP address for ib0 as folows :
ifconfig ib0 172.24.198.111
[root at p186 ~]# ifconfig ib0
ib0 Link encap:InfiniBand HWaddr
80:00:04:04:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00
inet addr:172.24.198.112 Bcast:172.24.255.255 Mask:255.255.0.0
UP BROADCAST MULTICAST MTU:65520 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:256
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
then it mounted sucessfully
Jan 16 09:47:09 p128 kernel: Lustre: Added LNI 172.24.198.111 at o2ib [8/64]
Jan 16 09:47:09 p128 kernel: Lustre: MGS MGS started
Jan 16 09:47:09 p128 kernel: Lustre: Setting parameter
lustre-MDT0000.mdt.group_upcall in log lustre-MDT0000
Jan 16 09:47:09 p128 kernel: Lustre: Enabling user_xattr
Jan 16 09:47:09 p128 kernel: Lustre: lustre-MDT0000: new disk, initializing
Jan 16 09:47:09 p128 kernel: Lustre: MDT lustre-MDT0000 now serving dev
(lustre-MDT0000/64db1fc7-03ba-9803-4d20-ab0d2aa66116) with recovery enabled
Jan 16 09:47:09 p128 kernel: Lustre:
5274:0:(lproc_mds.c:262:lprocfs_wr_group_upcall()) lustre-MDT0000: group
upcall set to /usr/sbin/l_getgroups
Jan 16 09:47:09 p128 kernel: Lustre: lustre-MDT0000.mdt: set parameter
group_upcall=/usr/sbin/l_getgroups
Jan 16 09:47:09 p128 kernel: Lustre: Server lustre-MDT0000 on device
/dev/loop0 has started
.
.
.
~subbu
On Thu, Jan 15, 2009 at 8:37 PM, Liang Zhen <Zhen.Liang at sun.com> wrote:
> Subbu,
>
> I'd suggest:
> 1) make sure ko2iblnd has been brought up (please check if there is any
> error message when startup ko2iblnd)
> 2) echo +neterror > /proc/sys/lnet/printk, then try with lctl ping, if it
> still can't work please post error messages
>
> Regards
> Liang
>
> subbu kl:
>
>> Problem is similer to
>> http://lists.lustre.org/pipermail/lustre-discuss/2008-May/007498.html
>> But by looking at the thread could not really get the solution for the
>> problem.
>>
>> I have two RHEL5 Linux servers installed with following packages -
>>
>> kernel-lustre-smp-2.6.18-53.1.14.el5_lustre.1.6.5.1
>> kernel-ib-1.3-2.6.18_53.1.14.el5_lustre.1.6.5.1smp
>> lustre-ldiskfs-3.0.4-2.6.18_53.1.14.el5_lustre.1.6.5.1smp
>> lustre-1.6.5.1-2.6.18_53.1.14.el5_lustre.1.6.5.1smp
>> lustre-modules-1.6.5.1-2.6.18_53.1.14.el5_lustre.1.6.5.1smp
>> e2fsprogs-1.40.7.sun3-0redhat
>>
>>
>> machine 1: with ib0 IP address : 172.24.198.111
>> machine 2: with ib0 IP address : 172.24.198.112
>>
>> /etc/modprobe.conf contains
>> options lnet networks=o2ib
>>
>> TCP networking worked fine and now I am trying with Infiniband network
>> finding it difficult in communicating with IB nodes mounting effort throghs
>> me the following error
>>
>> [root at p186 ~]# mount -t lustre -o loop /tmp/lustre-ost1 /mnt/ost1
>> mount.lustre: mount /dev/loop0 at /mnt/ost1 failed: Input/output error
>> Is the MGS running?
>>
>> /var/log/messages :
>> Jan 15 16:55:25 p186 kernel: kjournald starting. Commit interval 5
>> seconds
>> Jan 15 16:55:25 p186 kernel: LDISKFS FS on loop0, internal journal
>> Jan 15 16:55:25 p186 kernel: LDISKFS-fs: mounted filesystem with ordered
>> data mode.
>> Jan 15 16:55:25 p186 kernel: kjournald starting. Commit interval 5
>> seconds
>> Jan 15 16:55:25 p186 kernel: LDISKFS FS on loop0, internal journal
>> Jan 15 16:55:25 p186 kernel: LDISKFS-fs: mounted filesystem with ordered
>> data mode.
>> Jan 15 16:55:25 p186 kernel: LDISKFS-fs: file extents enabled
>> Jan 15 16:55:25 p186 kernel: LDISKFS-fs: mballoc enabled
>> Jan 15 16:55:30 p186 kernel: Lustre: Request x7 sent from
>> MGC172.24.198.111 at o2ib to NID 172.24.198.111 at o2ib 5s ago has timed out
>> (limit 5s).
>> Jan 15 16:55:30 p186 kernel: LustreError:
>> 7193:0:(obd_mount.c:1062:server_start_targets()) Required registration
>> failed for lustre-OSTffff: -5
>> Jan 15 16:55:30 p186 kernel: LustreError: 15f-b: Communication error with
>> the MGS. Is the MGS running?
>> Jan 15 16:55:30 p186 kernel: LustreError:
>> 7193:0:(obd_mount.c:1597:server_fill_super()) Unable to start targets: -5
>> Jan 15 16:55:30 p186 kernel: LustreError:
>> 7193:0:(obd_mount.c:1382:server_put_super()) no obd lustre-OSTffff
>> Jan 15 16:55:30 p186 kernel: LustreError:
>> 7193:0:(obd_mount.c:119:server_deregister_mount()) lustre-OSTffff not
>> registered
>> Jan 15 16:55:30 p186 kernel: LDISKFS-fs: mballoc: 0 blocks 0 reqs (0
>> success)
>> Jan 15 16:55:30 p186 kernel: LDISKFS-fs: mballoc: 0 extents scanned, 0
>> goal hits, 0 2^N hits, 0 breaks, 0 lost
>> Jan 15 16:55:30 p186 kernel: LDISKFS-fs: mballoc: 0 generated and it took
>> 0
>> Jan 15 16:55:30 p186 kernel: LDISKFS-fs: mballoc: 0 preallocated, 0
>> discarded
>> Jan 15 16:55:30 p186 kernel: Lustre: server umount lustre-OSTffff complete
>> Jan 15 16:55:30 p186 kernel: LustreError:
>> 7193:0:(obd_mount.c:1951:lustre_fill_super()) Unable to mount (-5)
>>
>> All pinging efforts also failed to the IB NIDS local/remote
>> can ping the ip address :
>> [root at p186 ~]# ping 172.24.198.112
>> PING 172.24.198.112 (172.24.198.112) 56(84) bytes of data.
>> 64 bytes from 172.24.198.112 <http://172.24.198.112>: icmp_seq=1 ttl=64
>> time=0.052 ms
>> 64 bytes from 172.24.198.112 <http://172.24.198.112>: icmp_seq=2 ttl=64
>> time=0.024 ms
>>
>> --- 172.24.198.112 ping statistics ---
>> 2 packets transmitted, 2 received, 0% packet loss, time 1000ms
>> rtt min/avg/max/mdev = 0.024/0.038/0.052/0.014 ms
>> [root at p186 ~]# ping 172.24.198.111
>> PING 172.24.198.111 (172.24.198.111) 56(84) bytes of data.
>> 64 bytes from 172.24.198.111 <http://172.24.198.111>: icmp_seq=1 ttl=64
>> time=2.16 ms
>> 64 bytes from 172.24.198.111 <http://172.24.198.111>: icmp_seq=2 ttl=64
>> time=0.296 ms
>>
>> --- 172.24.198.111 ping statistics ---
>> 2 packets transmitted, 2 received, 0% packet loss, time 1000ms
>> rtt min/avg/max/mdev = 0.296/1.231/2.166/0.935 ms
>>
>> but cant ping the NIDS :
>> [root at p186 ~]# lctl ping 172.24.198.112 at o2ib
>> failed to ping 172.24.198.112 at o2ib: Input/output error
>> [root at p186 ~]# lctl ping 172.24.198.111 at o2ib
>> failed to ping 172.24.198.111 at o2ib: Input/output error
>>
>> Any idea why lnet cant ping NIDS ?
>>
>> some more configurations:
>> [root at p186 ~]# ibstat
>> CA 'mthca0'
>> CA type: MT23108
>> Number of ports: 2
>> Firmware version: 3.5.0
>> Hardware version: a1
>> Node GUID: 0x0002c9020021550c
>>
>> Machines are connected via IB switch.
>>
>> Looking forward for help.
>>
>> ~subbu
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Lustre-discuss mailing list
>> Lustre-discuss at lists.lustre.org
>> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>>
>>
>
>
--
. . . s u b b u
"You've got to be original, because if you're like someone else, what do
they need you for?"
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