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Re: lctl ping fails to/from the client: msg#00042
file-systems.lustre.user
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Subject: |
Re: lctl ping fails to/from the client |
Hi all,
Problem solved. Some nodes had iptables blocking port 988 and some
didn't. :-)
Scott
On Apr 13, 2007, at 10:49 PM, Scott Atchley wrote:
Hi all,
I am trying to set up Lustre using TCP. I have the following in /
etc/modprobe.conf:
options lnet networks="tcp0(eth2)"
to specify the third NIC only. I have two OSSs and one MDS. They
startup and see each fine. My XML is pasted below.
When I try to have a client start with:
# lconf --node client lustre-fs.xml
it hangs at:
+ mount -t lustre_lite -o
osc=lov1,mdc=MDC_compute-0-1.local_mds1_MNT_client lustre-fs /mnt/
lustre
If I check its NIDs, I see:
# cat /proc/sys/lnet/nis
nid refs peer max tx min
0@lo 2 0 0 0 0
192.168.1.254@tcp 2 8 256 256 255
which is the correct address for this client. If instead of using
lconf, I simply modprobe lnet and run lctl, then I try to ping the
MDS. It fails:
# lctl
lctl > network up
LNET configured
lctl > network tcp
lctl > ping 192.168.1.250
failed to ping 192.168.1.250@tcp: Input/output error
Yet, I can ping the node on the command line:
# ping -s 9000 192.168.1.250
PING 192.168.1.250 (192.168.1.250) 9000(9028) bytes of data.
9008 bytes from 192.168.1.250: icmp_seq=0 ttl=64 time=0.142 ms
# ping -s 9000 nas-0-0-m
PING nas-0-0-m.local (192.168.1.250) 9000(9028) bytes of data.
9008 bytes from nas-0-0-m.local (192.168.1.250): icmp_seq=0 ttl=64
time=0.111 ms
If I try using lctl on the MDS to ping the client, it fails as well
but I can ping the two OSSs.
Any suggestions?
Thanks,
Scott
<?xml version='1.0' encoding='UTF-8'?>
<lustre version='2003070801' mtime='1176488849'>
<ldlm name='ldlm' uuid='ldlm_UUID'/>
<node uuid='client_UUID' name='client'>
<profile_ref uuidref='PROFILE_client_UUID'/>
<network uuid='NET_client_lnet_UUID' nettype='lnet'
name='NET_client_lnet'>
<nid>*</nid>
<clusterid>0</clusterid>
<port>988</port>
</network>
</node>
<profile uuid='PROFILE_client_UUID' name='PROFILE_client'>
<ldlm_ref uuidref='ldlm_UUID'/>
<network_ref uuidref='NET_client_lnet_UUID'/>
<mountpoint_ref uuidref='MNT_client_UUID'/>
</profile>
<node uuid='storenode1-m_UUID' name='storenode1-m'>
<profile_ref uuidref='PROFILE_storenode1-m_UUID'/>
<network uuid='NET_storenode1-m_lnet_UUID' nettype='lnet'
name='NET_storenode1-m_lnet'>
<nid>192.168.1.2</nid>
<clusterid>0</clusterid>
<port>988</port>
</network>
</node>
<profile uuid='PROFILE_storenode1-m_UUID'
name='PROFILE_storenode1-m'>
<ldlm_ref uuidref='ldlm_UUID'/>
<network_ref uuidref='NET_storenode1-m_lnet_UUID'/>
<osd_ref uuidref='OSD_ost1_storenode1-m_UUID'/>
</profile>
<node uuid='storenode2-m_UUID' name='storenode2-m'>
<profile_ref uuidref='PROFILE_storenode2-m_UUID'/>
<network uuid='NET_storenode2-m_lnet_UUID' nettype='lnet'
name='NET_storenode2-m_lnet'>
<nid>192.168.1.4</nid>
<clusterid>0</clusterid>
<port>988</port>
</network>
</node>
<profile uuid='PROFILE_storenode2-m_UUID'
name='PROFILE_storenode2-m'>
<ldlm_ref uuidref='ldlm_UUID'/>
<network_ref uuidref='NET_storenode2-m_lnet_UUID'/>
<osd_ref uuidref='OSD_ost2_storenode2-m_UUID'/>
</profile>
<node uuid='nas-0-0-m_UUID' name='nas-0-0-m'>
<profile_ref uuidref='PROFILE_nas-0-0-m_UUID'/>
<network uuid='NET_nas-0-0-m_lnet_UUID' nettype='lnet'
name='NET_nas-0-0-m_lnet'>
<nid>192.168.1.250</nid>
<clusterid>0</clusterid>
<port>988</port>
</network>
</node>
<profile uuid='PROFILE_nas-0-0-m_UUID' name='PROFILE_nas-0-0-m'>
<ldlm_ref uuidref='ldlm_UUID'/>
<network_ref uuidref='NET_nas-0-0-m_lnet_UUID'/>
<mdsdev_ref uuidref='MDD_mds1_nas-0-0-m_UUID'/>
</profile>
<mds uuid='mds1_UUID' name='mds1'>
<active_ref uuidref='MDD_mds1_nas-0-0-m_UUID'/>
<lovconfig_ref uuidref='LVCFG_lov1_UUID'/>
<filesystem_ref uuidref='FS_fsname_UUID'/>
</mds>
<mdsdev uuid='MDD_mds1_nas-0-0-m_UUID' name='MDD_mds1_nas-0-0-m'>
<fstype>ldiskfs</fstype>
<devpath>/var/run/lustre/mds</devpath>
<autoformat>yes</autoformat>
<devsize>5000000</devsize>
<journalsize>0</journalsize>
<inodesize>0</inodesize>
<node_ref uuidref='nas-0-0-m_UUID'/>
<target_ref uuidref='mds1_UUID'/>
</mdsdev>
<lov stripesize='4194304' stripecount='-1' stripepattern='0'
uuid='lov1_UUID' name='lov1'>
<mds_ref uuidref='mds1_UUID'/>
<obd_ref uuidref='ost1_UUID'/>
<obd_ref uuidref='ost2_UUID'/>
</lov>
<lovconfig uuid='LVCFG_lov1_UUID' name='LVCFG_lov1'>
<lov_ref uuidref='lov1_UUID'/>
</lovconfig>
<ost uuid='ost1_UUID' name='ost1'>
<active_ref uuidref='OSD_ost1_storenode1-m_UUID'/>
</ost>
<osd osdtype='obdfilter' uuid='OSD_ost1_storenode1-m_UUID'
name='OSD_ost1_storenode1-m'>
<target_ref uuidref='ost1_UUID'/>
<node_ref uuidref='storenode1-m_UUID'/>
<fstype>ldiskfs</fstype>
<devpath>/dev/sda1</devpath>
<autoformat>no</autoformat>
<devsize>0</devsize>
<journalsize>0</journalsize>
<inodesize>0</inodesize>
</osd>
<ost uuid='ost2_UUID' name='ost2'>
<active_ref uuidref='OSD_ost2_storenode2-m_UUID'/>
</ost>
<osd osdtype='obdfilter' uuid='OSD_ost2_storenode2-m_UUID'
name='OSD_ost2_storenode2-m'>
<target_ref uuidref='ost2_UUID'/>
<node_ref uuidref='storenode2-m_UUID'/>
<fstype>ldiskfs</fstype>
<devpath>/dev/sda1</devpath>
<autoformat>no</autoformat>
<devsize>0</devsize>
<journalsize>0</journalsize>
<inodesize>0</inodesize>
</osd>
<filesystem uuid='FS_fsname_UUID' name='FS_fsname'>
<mds_ref uuidref='mds1_UUID'/>
<obd_ref uuidref='lov1_UUID'/>
</filesystem>
<mountpoint uuid='MNT_client_UUID' name='MNT_client'>
<filesystem_ref uuidref='FS_fsname_UUID'/>
<path>/mnt/lustre</path>
</mountpoint>
</lustre>
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