https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-8609 Lustre <p>The <tt>/proc/fs/lustre/health_check</tt> file on the client does not currently report anything besides <tt>health=healthy</tt>, since this is only wired up to report request handling state on the server nodes, and if the ldiskfs filesystem has been mounted read-only.</p> <p>It would be desirable to have <tt>health_check</tt> print out the OSC and MDC import states on the client (e.g. if <tt>imp-&gt;imp_state != LUSTRE_IMP_FULL</tt> as long as the import is not marked <tt>imp_deactive</tt>). </p> LU-8609

connect client health_check file to client import state

Improvement Minor Open Unresolved Emoly Liu Andreas Dilger Tue, 13 Sep 2016 17:41:13 +0000 Mon, 27 Aug 2018 15:02:54 +0000 0 6 <p><a href="https://jira.whamcloud.com/secure/ViewProfile.jspa?name=adilger" class="user-hover" rel="adilger">adilger</a>, <br/> What kind of OSC and MDC import states on the client should be printed by health_check? Is the following format OK?</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>health_check=healthy target state: lustre-OST0000_UUID: FULL lustre-OST0001_UUID: FULL ... MGS: FULL ... </pre> </div></div> <p>This over laps with something Andreas suggested. In that we create two files for the health_checker. One to report the health and the second in debugfs that has more in depth details why it failed.</p> <p>James, why not just move the whole file to debugfs? There are already "<tt>lfs osts}" and "{{lfs mdts</tt>" commands to print this state for users, the "health_check" file is mostly for HA monitoring scripts.</p> <p>Hmm, looking at this more closely, it seems that the <tt>health_check</tt> file never prints anything but "health=healthy" even on the server under normal circumstances, and I guess this shouldn't change. If there is a problem it will print "LBUG" or "NOT HEALTHY". What is more important is that the client report "health=NOT HEALTHY" if the import states are bad, not that individual connection states are printed.</p> <p>Link the work of <a href="https://jira.whamcloud.com/browse/LU-10756" title="Send Uevents for interesting Lustre changes" class="issue-link" data-issue-key="LU-10756">LU-10756</a> since a patch exist that send uevents about the client imports state. Admins can setup udev rules to log or handle specific states. That is a more dynamic approach. We can supply more in depth information related to this ticket.</p> Related LU-8066 LU-10756 Development Rank 1|hzyof3: Rank (Obsolete) 9223372036854775807