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<p>Rick, Lydia,</p>
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<p>That reasoning is sound, but this is a special case. -11 (-EAGAIN) on ldlm_enqueue is generally OK...</p>
<br>
<p>LU-8658 explains the situation (it's POSIX flocks), so I'm going to reference that rather than repeat it here.</p>
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<p><a id="LPlnk238060" href="https://jira.hpdd.intel.com/browse/LU-8658" class="x_OWAAutoLink">https://jira.hpdd.intel.com/browse/LU-8658</a></p>
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<p>- Patrick<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Mohr Jr, Richard Frank (Rick Mohr) <rmohr@utk.edu><br>
<b>Sent:</b> Wednesday, May 3, 2017 11:07:53 AM<br>
<b>To:</b> Lydia Heck<br>
<b>Cc:</b> lustre-discuss@lists.lustre.org<br>
<b>Subject:</b> Re: [lustre-discuss] operation ldlm_queue failed with -11</font>
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<div class="PlainText">I think that -11 is EAGAIN, but I dont know how to interpret what that means in the context of Lustre locking. I assume these messages are from the clients and the changing xxxxx portion is just the fact that each client has a different
identifier. So if you have multiple clients complaining about errors to the same MDS server, then my first guess would be that there is some wrong on the server side of things.<br>
<br>
--<br>
Rick Mohr<br>
Senior HPC System Administrator<br>
National Institute for Computational Sciences<br>
<a href="http://www.nics.tennessee.edu">http://www.nics.tennessee.edu</a><br>
<br>
<br>
> On May 2, 2017, at 4:52 AM, Lydia Heck <lydia.heck@durham.ac.uk> wrote:<br>
> <br>
> <br>
> Dear all,<br>
> <br>
> we get many entries in our logs of the type<br>
> <br>
> <br>
> kernel: LustreError: 11-0: scratch-MDT0000-mdc-xxxxxxxxxxxxxx: Communicating with 172.17.xxx.yyy@o2ib, operation ldlm_enqueue failed with -11<br>
> <br>
> with the -xxxxxxxxxxxxxx changing<br>
> <br>
> but to the same MDS system?<br>
> <br>
> I have looked on the internet, but fail to find this error. There is very little info on ldlm_enqueue messages.<br>
> <br>
> Best wishes,<br>
> Lydia<br>
> <br>
> <br>
> _______________________________________________<br>
> lustre-discuss mailing list<br>
> lustre-discuss@lists.lustre.org<br>
> <a href="http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org">http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org</a><br>
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