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-8223 Lustre <p>LNet's neterr logs are turned off by default. I have been told this is due to the fact that they are very noisy. Logically, if logs are happening very frequently, they are not really errors then but normal operations. If they were errors, we should be fixing them.</p> <p>The big problem here is that when a networking field issue happens, we have little to nothing in the logs to go on. Debugging requires that the problem be easy to reproduce with neterr turned on (not usually the case for production errors), or becomes a discipline of the mind (i.e. guesswork).</p> <p>This ticket is for cleaning up the neterr logs to be true errors so we can have neterr logs on be default.</p> LU-8223

De-Noise LNet neterr logs so they can be ON by default

Improvement Major Open Unresolved Amir Shehata Doug Oucharek lnet Tue, 31 May 2016 22:43:25 +0000 Tue, 20 Jun 2017 23:20:23 +0000 0 6 <p>I actually consider this a bug and not an improvement. Neterrors should never have gotten into this unusable state in the first place. Outside of development, they are useless because they are off.</p> <p>Doug Oucharek (doug.s.oucharek@intel.com) uploaded a new patch: <a href="http://review.whamcloud.com/20769" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/20769</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-8223" title="De-Noise LNet neterr logs so they can be ON by default" class="issue-link" data-issue-key="LU-8223">LU-8223</a> lnet: Fix use of NETERR logging<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 155086c0edeb1b938994f1aba7c243ad4d57133d</p> <p>Do you need to backport this to earlier lustre version or is this a lustre 2.10 thing. The reason I ask is that the lustre debugging code is being migrated to tracepoint. For tracepoint this can be addressed but it wouldn't be back portable.</p> <p>This is really just a 2.10 thing.  I don't expect anyone will want this backported.</p> <p>When will the migration to tracepoint be taking place?</p> <p>I already started the tracepoint work. See <a href="https://jira.whamcloud.com/browse/LU-8980" title="Add tracepoint support to Lustre" class="issue-link" data-issue-key="LU-8980">LU-8980</a>.</p> <p>Ok, I can delay this patch until <a href="https://jira.whamcloud.com/browse/LU-8980" title="Add tracepoint support to Lustre" class="issue-link" data-issue-key="LU-8980">LU-8980</a> lands and then update it with any additional changes required.</p> Duplicate LU-2418 Related LU-8980 Development Rank 1|hzydan: Rank (Obsolete) 9223372036854775807 Severity