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--></style></head><body lang=en-NL link="#467886" vlink="#96607D" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>Since the last e-mail, the issue popped up again.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>Is there anything we can do on our end, except rebooting clients ?<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>-- </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Jan van Haarst</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>HPC </span><span style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Administrator</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Facilitair Bedrijf, onderdeel van Wageningen University & Research </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Afdeling Informatie Technologie </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Postbus 59, 6700 AB, Wageningen </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Gebouw 116, Akkermaalsbos 12, 6700 WB, Wageningen </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'><a href="http://www.wur.nl/nl/Disclaimer.htm" title="http://www.wur.nl/nl/Disclaimer.htm"><span style='color:#0563C1'>http://www.wur.nl/nl/Disclaimer.htm</span></a></span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p></div></div><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div id=mail-editor-reference-message-container><div><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='font-size:12.0pt;color:black'>From: </span></b><span style='font-size:12.0pt;color:black'>lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Haarst, Jan van via lustre-discuss <lustre-discuss@lists.lustre.org><br><b>Date: </b>Thursday, 22 August 2024 at 14:36<br><b>To: </b>lustre-discuss@lists.lustre.org <lustre-discuss@lists.lustre.org><br><b>Subject: </b>[lustre-discuss] How to activate an OST on a client ?<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=NL>Hi, </span><o:p></o:p></p><p class=MsoNormal><span lang=NL> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>Probably the wording of the subject doesn’t actually cover the issue, what we see is this :</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>We have a client behind a router (linking tcp to Omnipath) that shows an inactive OST (all on 2.15.5).</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>Other clients that go through the router do not have this issue. </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>One client had the same issue, although it showed a different OST as inactive.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>After a reboot, all was well again on that machine.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>The clients can lctl ping the OSSs.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>So although we have a workaround (reboot the client), it would be nice to:</span><o:p></o:p></p><ol style='margin-top:0cm' start=1 type=1><li class=MsoListParagraph style='margin-left:0cm;mso-list:l0 level1 lfo1'><span lang=EN-US>Fix the issue without a reboot</span><o:p></o:p></li><li class=MsoListParagraph style='margin-left:0cm;mso-list:l0 level1 lfo1'><span lang=EN-US>Fix the underlying issue.</span><o:p></o:p></li></ol><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>It might be unrelated, but we also see another routing issue every now and then:</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>The router stops routing request toward a certain OSS, and this can be fixed by deleting the peer_nid of the OSS from the router.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>I am probably missing informative logs, but I’m more than happy to try to generate them, if somebody has a pointer to how.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>We are a bit stumped right now.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US>With kind regards,</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US> </span><o:p></o:p></p><div><div><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>-- </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Jan van Haarst</span><o:p></o:p></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>HPC </span><span style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Administrator</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>For Anunna/HPC questions, please use <a href="https://support.wur.nl"><span style='color:#0563C1'>https://support.wur.nl</span></a> (with HPC as service)</span><o:p></o:p></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Aanwezig: maandag, dinsdag, donderdag & vrijdag </span><o:p></o:p></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Facilitair Bedrijf, onderdeel van Wageningen University & Research </span><o:p></o:p></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Afdeling Informatie Technologie </span><o:p></o:p></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Postbus 59, 6700 AB, Wageningen </span><o:p></o:p></p><p class=MsoNormal><span lang=NL style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'>Gebouw 116, Akkermaalsbos 12, 6700 WB, Wageningen </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0cm'><a href="https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.wur.nl%2Fnl%2FDisclaimer.htm&data=05%7C02%7Cjan.vanhaarst%40wur.nl%7Cf6980f1de6964962b67408dcc2a705ee%7C27d137e5761f4dc1af88d26430abb18f%7C0%7C0%7C638599269840849899%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=2yUwa7axA36YR%2Bxx9k%2Bzt7KTtQR4PMAVCK5jEDEVDQU%3D&reserved=0" title="http://www.wur.nl/nl/Disclaimer.htm"><span style='color:#0563C1'>http://www.wur.nl/nl/Disclaimer.htm</span></a></span><o:p></o:p></p></div></div><p class=MsoNormal> <o:p></o:p></p></div></div></div></div></div></body></html>