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> Or you can manually build lnet.conf as lnetctl seems to have occasion<br>
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> problems with some of the fields exported by "lnetctl export --backup"</div>
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I've noticed, in particular,</div>
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LNetError: 122666:0:(peer.c:372:lnet_peer_ni_del_locked())<br>
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Peer NI x.x.x.x@tcp is a gateway. Can not delete it</div>
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and</div>
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errno: -2<br>
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descr: "cannot add peer ni: No such file or directory"<br>
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not having removed the <code>peer:</code> section.</div>
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-Laura</div>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>Od:</b> lustre-discuss <lustre-discuss-bounces@lists.lustre.org> v imenu Angelos Ching via lustre-discuss <lustre-discuss@lists.lustre.org><br>
<b>Poslano:</b> torek, 23. februar 2021 05:06<br>
<b>Za:</b> lustre-discuss@lists.lustre.org <lustre-discuss@lists.lustre.org><br>
<b>Zadeva:</b> [EXTERNAL] Re: [lustre-discuss] need to always manually add network after reboot</font>
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<p style="margin-top: 0px; margin-bottom: 0px;">Hi Sid,</p>
<p style="margin-top: 0px; margin-bottom: 0px;">Notice that you are using lnetctl net add to add the lnet network, which means you should be using a recent version of Lustre that depends on /etc/lnet.conf for boot time lnet configuration.</p>
<p style="margin-top: 0px; margin-bottom: 0px;">You can save the current lnet configuration using command: lnetctl export --backup > /etc/lnet.conf (make a backup of the original file first if required)<br>
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<p style="margin-top: 0px; margin-bottom: 0px;">On next boot, lnet.service will load your lnet configuration from the file.</p>
<p style="margin-top: 0px; margin-bottom: 0px;">Or you can manually build lnet.conf as lnetctl seems to have occasion problems with some of the fields exported by "lnetctl export --backup"</p>
<p style="margin-top: 0px; margin-bottom: 0px;">Attaching my simple lnet.conf for your reference:</p>
<p style="margin-top: 0px; margin-bottom: 0px;"></p>
<blockquote type="cite"><font face="monospace"># cat /etc/lnet.conf<br>
ip2nets:<br>
- net-spec: o2ib<br>
ip-range:<br>
0: 10.2.8.*<br>
- net-spec: tcp<br>
ip-range:<br>
0: 10.5.9.*<br>
route:<br>
- net: o2ib<br>
gateway: 10.5.9.25@tcp<br>
hop: -1<br>
priority: 0<br>
- net: o2ib<br>
gateway: 10.5.9.24@tcp<br>
hop: -1<br>
priority: 0<br>
global:<br>
numa_range: 0<br>
max_intf: 200<br>
discovery: 1<br>
drop_asym_route: 0</font></blockquote>
Best regards,<br>
Angelos
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<div class="x_moz-cite-prefix">On 23/02/2021 13:58, Sid Young via lustre-discuss wrote:<br>
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<div>G'Day all,</div>
<div>I'm finding that when I reboot any node in our new HPC, I need to keep manually adding the network using lnetctl net add --net tcp --if ens2f0</div>
<div>Then I can do an lnetctl net show and see the tcp part active...</div>
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<div>I have options in /etc/modprobe.d/lnet.conf</div>
<div>options lnet networks=tcp<br>
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<div>and </div>
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<div>[root@hpc-oss-03 ~]# cat /etc/modprobe.d/lustre.conf<br>
options lnet networks="tcp(ens2f0)"<br>
options lnet ip2nets="tcp(ens2f0) 10.140.93.*<br>
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<div>I've read the doco and tried to understand the correct parameters for a simple Lustre config so this is what I worked out is needed... but I suspect its still wrong.</div>
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<div>Any help appreciated :)</div>
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<div>Sid Young</div>
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<pre class="x_moz-quote-pre">_______________________________________________
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<pre class="x_moz-signature" cols="72">--
Angelos Ching
ClusterTech Limited
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