<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<div class="moz-cite-prefix">Hi<br>
<br>
As discussed at last Developer Summit, my concern is about
transparent interface switching, without upper layer knowing it.<br>
I'm not talking about a lot of interface details, others already
talked about that. I thinking about error messages and admins
which are not Lustre experts.<br>
<br>
This is a typically timeout error message you can get on a Lustre
client. You can see a lustre target (here MDT0000) and a NID,
especially an IP address.<br>
<br>
[4863147.960698] Lustre:
25163:0:(client.c:1939:ptlrpc_expire_one_request()) @@@ Request
sent has timed out for slow reply: [sent 1443794470/real
1443794470] req@ffff880612a00c00 x1509752994606324/t0(0)
o38-><a class="moz-txt-link-abbreviated" href="mailto:lustre-MDT0000-mdc-ffff88062dea2000@10.2.10.13@o2ib:12/10">lustre-MDT0000-mdc-ffff88062dea2000@10.2.10.13@o2ib:12/10</a>
lens 400/544 e 0 to 1 dl 1443794476 ref 1 fl Rpc:XN/0/ffffffff rc
0/-1<br>
<br>
If this error is due to LNET taking another link, either on client
side or server side and this link is sick/flacky/buggy, ... *this
should not be silent*! Ideally this NID should be updated in this
error message to reflect the route change.<br>
I do not have a strong opinion on the way this error should be
reported, but I just wanted the case where : the network error is
reported only in debug message and this error message is displayed
as-is, without any idea that LNET did some magic stuff that
failed.<br>
<br>
<br>
<br>
Aurélien<br>
<br>
Le 28/09/2015 21:30, Amir Shehata a écrit :<br>
</div>
<blockquote
cite="mid:CAAqp6i2jWQheq7aeT+VkQ5+=JsuAuMTJSPewGAfvaC8r8kSf9Q@mail.gmail.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
<div dir="ltr">Hello,
<div><br>
</div>
<div>As a followup on the discussion in the LAD developer
summit, regarding ensuring that there is enough debug
information provided as part of the Channel Bonding solution,
I'm sending this email to ask for ideas on what type of debug
information you would like to see.</div>
<div><br>
</div>
<div>thanks</div>
<div>amir</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
lustre-devel mailing list
<a class="moz-txt-link-abbreviated" href="mailto:lustre-devel@lists.lustre.org">lustre-devel@lists.lustre.org</a>
<a class="moz-txt-link-freetext" href="http://lists.lustre.org/listinfo.cgi/lustre-devel-lustre.org">http://lists.lustre.org/listinfo.cgi/lustre-devel-lustre.org</a>
</pre>
</blockquote>
<br>
</body>
</html>