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OK! Found the solution (came from a Luster user). So simple!...<br>
<br>
<br>
Quote:<br>
---<br>
I think the possible solution to your problem lies in
differentiating the two different IB networks - by changing the
lustre lnet device names.<br>
This means that each separate cluster would have different
non-default "o2ib" naming convention in modprobe.conf.<br>
<br>
The IB3 lustre servers might call it:<br>
<p class="MsoPlainText"> options lnet
networks="o2ib3(bond0),tcp(eth0)"</p>
and the IB4 lustre servers might call it:<br>
<p class="MsoPlainText"> options lnet
networks="o2ib4(bond0),tcp(eth0)"</p>
---<br>
<br>
That solution works perfectly.<br>
<br>
Thanks to repliers!<br>
<br>
Season's Greetings all!<br>
<br>
On 12/19/11 12:57, Patrice Hamelin wrote:
<blockquote cite="mid:4EEF34C5.5080603@ec.gc.ca" type="cite">
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
<title></title>
Cliff,<br>
<br>
Maybe our configuration is a bit special. We are running two
Infiniband partitions, one for storage and the other for TCP over
IB. Both clusters are named IB3 and IB4.<br>
<br>
I have 4 OSS on clustre IB3 which are configured like:<br>
<br>
bond0 Link encap:InfiniBand HWaddr
80:00:00:4B:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00 <br>
inet addr:10.10.135.115 Bcast:10.10.135.255
Mask:255.255.255.0<br>
inet6 addr: fe80::202:c903:e:8bc6/64 Scope:Link<br>
UP BROADCAST RUNNING MASTER MULTICAST MTU:65520
Metric:1<br>
RX packets:6 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:0 <br>
RX bytes:336 (336.0 b) TX bytes:0 (0.0 b)<br>
<br>
eth0 Link encap:Ethernet HWaddr E4:1F:13:60:93:C0 <br>
inet addr:10.10.132.115 Bcast:10.10.132.255
Mask:255.255.255.0<br>
inet6 addr: fe80::e61f:13ff:fe60:93c0/64 Scope:Link<br>
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1<br>
RX packets:85 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:91 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:1000 <br>
RX bytes:10707 (10.4 KiB) TX bytes:10607 (10.3 KiB)<br>
Interrupt:169 Memory:92000000-92012800 <br>
<br>
ib0.8001 Link encap:InfiniBand HWaddr
80:00:00:4A:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00 <br>
UP BROADCAST RUNNING SLAVE MULTICAST MTU:65520
Metric:1<br>
RX packets:3 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:256 <br>
RX bytes:168 (168.0 b) TX bytes:0 (0.0 b)<br>
<br>
ib1.8001 Link encap:InfiniBand HWaddr
80:00:00:4B:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00 <br>
UP BROADCAST RUNNING SLAVE MULTICAST MTU:65520
Metric:1<br>
RX packets:3 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:256 <br>
RX bytes:168 (168.0 b) TX bytes:0 (0.0 b)<br>
<br>
lo Link encap:Local Loopback <br>
inet addr:127.0.0.1 Mask:255.0.0.0<br>
inet6 addr: ::1/128 Scope:Host<br>
UP LOOPBACK RUNNING MTU:16436 Metric:1<br>
RX packets:8 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:0 <br>
RX bytes:560 (560.0 b) TX bytes:560 (560.0 b)<br>
<br>
[root@ib3-st01 ~]# cat /etc/modprobe.conf<br>
alias eth0 bnx2<br>
alias eth1 bnx2<br>
alias scsi_hostadapter mptbase<br>
alias scsi_hostadapter1 mptsas<br>
alias scsi_hostadapter2 ata_piix<br>
alias scsi_hostadapter3 qla2xxx<br>
alias usb0 cdc_ether<br>
alias bond0 bonding<br>
options bond0 miimon=100 mode=1<br>
options lnet networks="o2ib(bond0),tcp(eth0)"<br>
options ost oss_num_threads=24<br>
<br>
I formatted the MGS/MDT like:<font face="Liberation Mono,
monospace"><font size="2"><br>
<br>
mkfs.lustre --mgs --mdt --fsname=sata --reformat
/dev/mpath/emcssd-1</font></font>
<p style="margin-bottom: 0in;">And the 8 OST's like:<br>
</p>
<p style="margin-bottom: 0in;">
<style type="text/css">p { margin-bottom: 0.08in; }</style> </p>
<p style="margin-bottom: 0in;"><font face="Liberation Mono,
monospace"><font size="2">mkfs.lustre --fsname sata --reformat
--ost --mgsnode=10.10.135.115@o2ib
--mgsnode=10.10.132.115@tcp /dev/mpath/colosse4-lun53-sata</font></font></p>
<br>
[root@ib3-st01 ~]# cat /etc/ha.d/haresources<br>
ib3-st01 Filesystem::/dev/mpath/emcssd-1::/mnt/mdt-colosse::lustre<br>
ib3-st01
Filesystem::/dev/mpath/colosse4-lun53-sata::/mnt/data/clun53::lustre<br>
ib3-st02
Filesystem::/dev/mpath/colosse4-lun54-sata::/mnt/data/clun54::lustre<br>
ib3-st03
Filesystem::/dev/mpath/colosse4-lun55-sata::/mnt/data/clun55::lustre<br>
ib3-st04
Filesystem::/dev/mpath/colosse4-lun56-sata::/mnt/data/clun56::lustre<br>
ib3-st01
Filesystem::/dev/mpath/colosse4-lun57-sata::/mnt/data/clun57::lustre<br>
ib3-st02
Filesystem::/dev/mpath/colosse4-lun58-sata::/mnt/data/clun58::lustre<br>
ib3-st03
Filesystem::/dev/mpath/colosse4-lun59-sata::/mnt/data/clun59::lustre<br>
ib3-st04
Filesystem::/dev/mpath/colosse4-lun60-sata::/mnt/data/clun60::lustre<br>
<br>
[root@ib3-st01 ~]# lctl list_nids<br>
10.10.135.115@o2ib<br>
10.10.132.115@tcp<br>
<br>
service heartbeat start<br>
<br>
<br>
Client on cluster IB3<br>
ib3-bc3e41-be01:~# ifconfig <br>
ib0.8001 Link encap:UNSPEC HWaddr
80-00-00-51-FE-80-00-00-00-00-00-00-00-00-00-00 <br>
inet addr:10.10.135.74 Bcast:10.10.135.255
Mask:255.255.255.0<br>
inet6 addr: fe80::224:e890:97fe:fc91/64 Scope:Link<br>
UP BROADCAST RUNNING MULTICAST MTU:65520 Metric:1<br>
RX packets:5580 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:2048 <br>
RX bytes:430797 (430.7 KB) TX bytes:0 (0.0 B)<br>
<br>
ib0.8608 Link encap:UNSPEC HWaddr
80-00-00-4A-FE-80-00-00-00-00-00-00-00-00-00-00 <br>
inet addr:10.10.133.74 Bcast:10.10.133.255
Mask:255.255.255.0<br>
inet6 addr: fe80::224:e890:97fe:fc91/64 Scope:Link<br>
UP BROADCAST RUNNING MULTICAST MTU:65520 Metric:1<br>
RX packets:209527 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:99270 errors:0 dropped:2 overruns:0 carrier:0<br>
collisions:0 txqueuelen:2048 <br>
RX bytes:20774987 (20.7 MB) TX bytes:16029957 (16.0 MB)<br>
<br>
lo Link encap:Local Loopback <br>
inet addr:127.0.0.1 Mask:255.0.0.0<br>
inet6 addr: ::1/128 Scope:Host<br>
UP LOOPBACK RUNNING MTU:16436 Metric:1<br>
RX packets:157814 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:157814 errors:0 dropped:0 overruns:0
carrier:0<br>
collisions:0 txqueuelen:0 <br>
RX bytes:7262472 (7.2 MB) TX bytes:7262472 (7.2 MB)<br>
<br>
ib3-bc3e41-be01:/proc/fs/lustre/osc# cat
/etc/modprobe.d/lustre.conf <br>
options lnet networks="o2ib(ib0.8001),tcp(ib0.8608)<br>
<br>
I am able to mount both o2ib and tcp (strange though but still it
works!)<br>
<br>
ib3-bc3e41-be01:/proc/fs/lustre/osc# mount -t lustre<br>
10.10.135.115@o2ib:/sata on /mnt/sata type lustre (rw)<br>
10.10.132.115@tcp:/sata on /mnt/sata type lustre (rw)<br>
<br>
The same goes for clients on cluster IB4.<br>
<br>
What I would like to achieve is TCP mount from cluster IB4 to
cluster IB3<br>
<br>
Clients on cluster IB4 are like:<br>
ib4-bc1f82-be01:~# ifconfig <br>
ib0.8003 Link encap:UNSPEC HWaddr
80-00-00-50-FE-80-00-00-00-00-00-00-00-00-00-00 <br>
inet addr:10.10.142.26 Bcast:10.10.142.255
Mask:255.255.255.0<br>
inet6 addr: fe80::224:e890:97fe:fca9/64 Scope:Link<br>
UP BROADCAST RUNNING MULTICAST MTU:65520 Metric:1<br>
RX packets:2530 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:280 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:2048 <br>
RX bytes:609159 (609.1 KB) TX bytes:16936 (16.9 KB)<br>
<br>
ib0.8613 Link encap:UNSPEC HWaddr
80-00-00-4A-FE-80-00-00-00-00-00-00-00-00-00-00 <br>
inet addr:10.10.140.26 Bcast:10.10.140.255
Mask:255.255.255.0<br>
inet6 addr: fe80::224:e890:97fe:fca9/64 Scope:Link<br>
UP BROADCAST RUNNING MULTICAST MTU:65520 Metric:1<br>
RX packets:4218 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:3196 errors:0 dropped:1 overruns:0 carrier:0<br>
collisions:0 txqueuelen:2048 <br>
RX bytes:570916 (570.9 KB) TX bytes:1665488 (1.6 MB)<br>
<br>
lo Link encap:Local Loopback <br>
inet addr:127.0.0.1 Mask:255.0.0.0<br>
inet6 addr: ::1/128 Scope:Host<br>
UP LOOPBACK RUNNING MTU:16436 Metric:1<br>
RX packets:1455 errors:0 dropped:0 overruns:0 frame:0<br>
TX packets:1455 errors:0 dropped:0 overruns:0 carrier:0<br>
collisions:0 txqueuelen:0 <br>
RX bytes:69554 (69.5 KB) TX bytes:69554 (69.5 KB)<br>
<br>
ib4-bc1f82-be01:~# cat /etc/modprobe.d/lustre.conf <br>
options lnet networks="o2ib(ib0.8003),tcp(ib0.8613)"<br>
<br>
ib4-bc1f82-be01:~# lctl ping 10.10.132.115@tcp<br>
12345-0@lo<br>
12345-10.10.135.115@o2ib<br>
12345-10.10.132.115@tcp<br>
<br>
ib4-bc1f82-be01:~# mount -t lustre 10.10.132.115@tcp:/sata
/mnt/sata<br>
<br>
That hangs and the log files says:<br>
<br>
Dec 19 12:43:50 ib4-bc1f82-be01 kernel: [ 1649.617429] Lustre:
2420:0:(import.c:517:import_select_connection())
sata-MDT0000-mdc-ffff880c3a9e6400: tried all connections,
increasing latency to 1s<br>
Dec 19 12:45:05 ib4-bc1f82-be01 kernel: [ 1724.492699] Lustre:
2420:0:(import.c:517:import_select_connection())
sata-MDT0000-mdc-ffff880c3a9e6400: tried all connections,
increasing latency to 4s<br>
Dec 19 12:45:05 ib4-bc1f82-be01 kernel: [ 1724.492705] Lustre:
2420:0:(import.c:517:import_select_connection()) Skipped 2
previous similar messages<br>
Dec 19 12:47:35 ib4-bc1f82-be01 kernel: [ 1874.243747] Lustre:
2420:0:(import.c:517:import_select_connection())
sata-MDT0000-mdc-ffff880c3a9e6400: tried all connections,
increasing latency to 10s<br>
Dec 19 12:47:35 ib4-bc1f82-be01 kernel: [ 1874.243754] Lustre:
2420:0:(import.c:517:import_select_connection()) Skipped 5
previous similar messages<br>
Dec 19 12:52:35 ib4-bc1f82-be01 kernel: [ 2173.742386] Lustre:
2420:0:(import.c:517:import_select_connection())
sata-MDT0000-mdc-ffff880c3a9e6400: tried all connections,
increasing latency to 21s<br>
Dec 19 12:52:35 ib4-bc1f82-be01 kernel: [ 2173.742393] Lustre:
2420:0:(import.c:517:import_select_connection()) Skipped 10
previous similar messages<br>
Dec 19 12:52:35 ib4-bc1f82-be01 kernel: [ 2173.742544] Lustre:
2419:0:(client.c:1487:ptlrpc_expire_one_request()) @@@ Request
x1388626094064659 sent from sata-MDT0000-mdc-ffff880c3a9e6400 to
NID 10.10.135.115@o2ib 0s ago has failed due to network error (26s
prior to deadline).<b><br>
</b>Dec 19 12:52:35 ib4-bc1f82-be01 kernel: [ 2173.742547]
req@ffff880c3b0e6400 x1388626094064659/t0 o38-><a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:sata-MDT0000_UUID@10.10.135.115@o2ib:12/10">sata-MDT0000_UUID@10.10.135.115@o2ib:12/10</a>
lens 368/584 e 0 to 1 dl 1324299181 ref 1 fl Rpc:N/0/0 rc 0/0<br>
Dec 19 12:52:35 ib4-bc1f82-be01 kernel: [ 2173.742554] Lustre:
2419:0:(client.c:1487:ptlrpc_expire_one_request()) Skipped 23
previous similar messages<br>
<br>
<br>
Seems like I have a network error from
"sata-MDT0000-mdc-ffff880c3a9e6400" to NID "10.10.135.115@o2ib"<br>
<br>
Same phenomenon is observed if I try to mount IB3 clients from IB4
lustre partitions.<br>
<br>
What am I missing here?<br>
<br>
Thanks.<br>
<br>
<br>
On 12/16/11 22:27, Cliff White wrote:
<blockquote
cite="mid:CAGgoGxPtEP+4P9yNcBSExFYYxig3A-7cJJqMWVQcUkqLtCfpUg@mail.gmail.com"
type="cite">You can do this, simply define networks for both
devices.
<div>Assuming ib0, and eth0, you would have</div>
<div>options lnet networks="tcp0(eth0),o2ib0(ib0)"</div>
<div><br>
</div>
<div>The IB clients will mount using a @o2ib0 NID, and the
ethernet clients will mount using @tcp0 NIDs. Since you are
explicitly specifying the network, the hop rule doesn't apply.</div>
<div>cliffw</div>
<div><br>
<br>
<div class="gmail_quote">On Fri, Dec 16, 2011 at 9:49 AM,
Patrice Hamelin <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:patrice.hamelin@ec.gc.ca">patrice.hamelin@ec.gc.ca</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000"> Hi,<br>
<br>
I have two Infiniband clusters, each in a separate
location with a solid ethernet connectivity between each
of them. Say they are named cluster A and cluster B.
All members of each clusters have both IB and eth
networks available to them, and the IB network is not
routed between cluster A and B, but ethernet is. On
each clusters, I have 4 OSS's serving FC disks. Clients
on cluster A mounts Lustre disk from their local
cluster, and the same goes on for for cluster B, both on
Infiniband NIDs.<br>
<br>
What I would like to achieve is client from cluster A
to mount disks from OSS's on cluster B on the ethernet
connection. The same goes on for clients in cluster B
to mount disks from OSS's on cluster A.<br>
<br>
From my readings in the luster 1.8.7 manual, I got:<br>
<br>
7.1.1 Modprobe.conf<br>
Options under modprobe.conf are used to specify the
networks available to a node.<br>
You have the choice of two different options – the
networks option, which explicitly<br>
lists the networks available and the ip2nets option,
which provides a list-matching<br>
lookup. Only one option can be used at any one time. The
order of LNET lines in<br>
modprobe.conf is important when configuring multi-homed
servers. <b>If a server<br>
node can be reached using more than one network, the
first network specified in<br>
modprobe.conf will be used.</b><br>
<br>
Is the last sentence means that I cannot do that?<br>
<br>
Thanks.<span class="HOEnZb"><font color="#888888"><br>
<br>
-- <br>
Patrice Hamelin<br>
Specialiste sénior en systèmes d'exploitation |
Senior OS specialist<br>
Environnement Canada | Environment Canada<br>
2121, route Transcanadienne | 2121 Transcanada
Highway<br>
Dorval, QC H9P 1J3<br>
Gouvernement du Canada | Government of Canada<br>
<br>
</font></span></div>
<br>
_______________________________________________<br>
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href="mailto:Lustre-discuss@lists.lustre.org">Lustre-discuss@lists.lustre.org</a><br>
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href="http://lists.lustre.org/mailman/listinfo/lustre-discuss"
target="_blank">http://lists.lustre.org/mailman/listinfo/lustre-discuss</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
cliffw
<div>Support Guy</div>
<div>WhamCloud, Inc. </div>
<div><a moz-do-not-send="true" href="http://www.whamcloud.com"
target="_blank">www.whamcloud.com</a></div>
<div><br>
</div>
<br>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Patrice Hamelin
Specialiste sénior en systèmes d'exploitation | Senior OS specialist
Environnement Canada | Environment Canada
2121, route Transcanadienne | 2121 Transcanada Highway
Dorval, QC H9P 1J3
Téléphone | Telephone 514-421-5303
Télécopieur | Facsimile 514-421-7231
Gouvernement du Canada | Government of Canada</pre>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
Lustre-discuss mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Lustre-discuss@lists.lustre.org">Lustre-discuss@lists.lustre.org</a>
<a class="moz-txt-link-freetext" href="http://lists.lustre.org/mailman/listinfo/lustre-discuss">http://lists.lustre.org/mailman/listinfo/lustre-discuss</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Patrice Hamelin
Specialiste sénior en systèmes d'exploitation | Senior OS specialist
Environnement Canada | Environment Canada
2121, route Transcanadienne | 2121 Transcanada Highway
Dorval, QC H9P 1J3
Téléphone | Telephone 514-421-5303
Télécopieur | Facsimile 514-421-7231
Gouvernement du Canada | Government of Canada</pre>
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