<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang="ZH-CN" link="blue" vlink="purple" style="word-wrap:break-word"> <div class="WordSection1"> Hello Itxaka,<o:p></o:p> I have tried the scenario,<o:p></o:p> <ol style="margin-top:0cm" start="1" type="1"> <li class="MsoListParagraph" style="margin-left:-18.0pt;mso-list:l0 level1 lfo1"> Update the emergency service with JobRunningTimeoutSec=300 and JobTimeoutAction=reboot-force; (/usr/lib/systemd/system/emergency.service)<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-18.0pt;mso-list:l0 level1 lfo1"> Reload service: systemctl daemon-reload<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-18.0pt;mso-list:l0 level1 lfo1"> Start the service manually: systemctl start emergency; (Is this manual action OK?)<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-18.0pt;mso-list:l0 level1 lfo1"> But from the result, the VM still in emergency mode after 300 seconds;<o:p></o:p></li></ol> <o:p> </o:p> [root@qrms6-host02 ~]# virsh console 47<o:p></o:p> Connected to domain 'qrms6-sig-fw-b'<o:p></o:p> Escape character is ^] (Ctrl + ])<o:p></o:p> <o:p> </o:p> Login incorrect<o:p></o:p> <o:p> </o:p> Give root password for maintenance<o:p></o:p> (or press Control-D to continue):<o:p></o:p> <o:p> </o:p> Any other suggestions.<o:p></o:p> <div> Thanks,<o:p></o:p> Mark<o:p></o:p> </div> <o:p> </o:p> <div> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm"> From: Mark Zhang (NSB) Sent: 2024年6月12日 16:42 To: Itxaka Serrano Garcia <itxaka.garcia@spectrocloud.com> Cc: systemd-devel@lists.freedesktop.org Subject: RE: [External] Re: [systemd-devel] How to set the timeout of emergency mode<o:p></o:p> </div> </div> <o:p> </o:p> Hello Itxaka,<o:p></o:p> Thanks for the valuable suggestions.<o:p></o:p> We will try that.<o:p></o:p> <o:p> </o:p> Thanks,<o:p></o:p> Mark<o:p></o:p> <o:p> </o:p> <div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm"> From: Itxaka Serrano Garcia <<a href="mailto:itxaka.garcia@spectrocloud.com">itxaka.garcia@spectrocloud.com</a>> Sent: 2024年6月12日 15:38 To: Mark Zhang (NSB) <<a href="mailto:mark.zhang@nokia-sbell.com">mark.zhang@nokia-sbell.com</a>> Cc: <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> Subject: Re: [External] Re: [systemd-devel] How to set the timeout of emergency mode<o:p></o:p> </div> <o:p> </o:p> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" align="left" width="100%" style="width:100.0%"> <tbody> <tr> <td style="background:#FFB900;padding:5.0pt 2.0pt 5.0pt 2.0pt"> <o:p></o:p> </td> <td width="100%" style="width:100.0%;background:#FFF8E5;padding:5.0pt 4.0pt 5.0pt 12.0pt"> <div> CAUTION: This is an external email. Please be very careful when clicking links or opening attachments. See <a href="http://nok.it/nsb">http://nok.it/nsb</a> for additional information.<o:p></o:p> </div> </td> </tr> </tbody> </table> <o:p></o:p> <div> <div> In that case, why not use the timeout stuff from the services?<o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> You could probably override the service to set a timeout for its running with<o:p></o:p> </div> <div> [Unit] JobRunningTimeoutSec=300<o:p></o:p> </div> <div> JobTimeoutAction=reboot-force<o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> So after starting you get up to 5 minutes of it running and then it should reboot. Probably the JobTimeoutAction is not needed as I'm sure it will reboot if the emergency.service fails, but better safe than sorry :)<o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> That gives you the best of both worlds. You get some time to debug and if not it will auto reboot after a bit and maybe fix itself :D<o:p></o:p> </div> </div> <o:p> </o:p> <div> <div> On Wed, Jun 12, 2024 at 2:21 AM Mark Zhang (NSB) <<a href="mailto:mark.zhang@nokia-sbell.com">mark.zhang@nokia-sbell.com</a>> wrote:<o:p></o:p> </div> <blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt"> <div> <div> <div> Hello Itxaka,<o:p></o:p> <o:p></o:p> Thanks for the suggestion.<o:p></o:p> If we override with reboot, that may impact the ability of debug in case encountered real issue.<o:p></o:p> <o:p></o:p> Thanks,<o:p></o:p> Mark<o:p></o:p> <o:p></o:p> <div style="border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0cm 0cm 0cm;border-color:currentcolor currentcolor"> From: Itxaka Serrano Garcia <<a href="mailto:itxaka.garcia@spectrocloud.com" target="_blank">itxaka.garcia@spectrocloud.com</a>> Sent: 2024年6月11日 16:08 To: Mark Zhang (NSB) <<a href="mailto:mark.zhang@nokia-sbell.com" target="_blank">mark.zhang@nokia-sbell.com</a>> Cc: <a href="mailto:systemd-devel@lists.freedesktop.org" target="_blank">systemd-devel@lists.freedesktop.org</a> Subject: [External] Re: [systemd-devel] How to set the timeout of emergency mode<o:p></o:p> </div> <o:p></o:p> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" align="left" width="100%" style="width:100.0%"> <tbody> <tr> <td style="background:#FFB900;padding:5.0pt 2.0pt 5.0pt 2.0pt"> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-element:frame;mso-element-frame-hspace:2.25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-height-rule:exactly"> <o:p></o:p> </td> <td width="100%" style="width:100.0%;background:#FFF8E5;padding:5.0pt 4.0pt 5.0pt 12.0pt"> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-element:frame;mso-element-frame-hspace:2.25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-height-rule:exactly"> CAUTION: This is an external email. Please be very careful when clicking links or opening attachments. See <a href="http://nok.it/nsb" target="_blank">http://nok.it/nsb</a> for additional information.<o:p></o:p> </div> </td> </tr> </tbody> </table> <o:p></o:p> <div> <div> Maybe you could override the emergency.service to reboot automatically? Either on the ExecStartPost or even earlier if you dont want to even show the logging, on ExecStartPre?<o:p></o:p> </div> <div> <o:p></o:p> </div> <div> I think that could work.<o:p></o:p> </div> </div> <o:p></o:p> <div> <div> On Tue, Jun 11, 2024 at 5:19 AM Mark Zhang (NSB) <<a href="mailto:mark.zhang@nokia-sbell.com" target="_blank">mark.zhang@nokia-sbell.com</a>> wrote:<o:p></o:p> </div> <blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:currentcolor currentcolor currentcolor rgb(204,204,204)"> <div> <div> <div> Hello Experts,<o:p></o:p> <o:p></o:p> Consult one question about how to set the timeout of emergency mode?<o:p></o:p> <o:p></o:p> Scenario:<o:p></o:p> We have encountered one problem of Openstack host, and the host was up at the end, and all things are good from host level after that.<o:p></o:p> But the VM stuck in the emergency mode forever. If we input ctrl+D, the VM could reboot normally again.<o:p></o:p> <o:p></o:p> So we would like to consult, if any method could avoid to stuck in the emergency mode forever? Be better, there is some timeout setting for emergency mode. Then the VM could auto-recover by itself for such scenario.<o:p></o:p> <o:p></o:p> Thanks,<o:p></o:p> Mark<o:p></o:p> <o:p></o:p> </div> </div> </div> </blockquote> </div> </div> </div> </div> </blockquote> </div> </div> </body> </html>