<div><div dir="auto">We've had issues getting sssd to work reliably on compute nodes (at least at scale), the reason is not fully understood, but basically if the connection times out with sssd it'll black list the server for 60s, which then causes those kinds of issues.</div></div><div dir="auto"><br></div><div dir="auto">Setting LaunchParameters=send_gids will sidestep this issue by doing the lookups exclusively on the controller node, where more frequent connections can prevent time decay disconnections and reduce the likelihood of cache misses. </div><div><br><div class="gmail_quote"><div dir="ltr">On Fri, Nov 9, 2018 at 11:16 PM Chris Samuel <<a href="mailto:chris@csamuel.org">chris@csamuel.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Friday, 9 November 2018 2:47:51 AM AEDT Aravindh Sampathkumar wrote:<br>
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> navtp@console2:~> ssh c07b07 id<br>
> uid=29865(navtp) gid=510(finland) groups=510(finland),508(nav),5001(ghpc)<br>
> context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023<br>
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Do you have SElinux configured by some chance?<br>
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If so you might want to check if it works with it disabled first..<br>
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All the best,<br>
Chris<br>
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Chris Samuel : <a href="http://www.csamuel.org/" rel="noreferrer" target="_blank">http://www.csamuel.org/</a> : Melbourne, VIC<br>
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</blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature">Sent from Gmail Mobile</div>