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-3357 Lustre <p>This is reproducible using master (circa tag 2.4.50)</p> <p>Prior to replace nids:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@lumgr1 CONFIGS]# llog_reader t32fs-client Header size : 8192 Time : Thu Feb 7 22:24:35 2013 Number of records: 35 Target uuid : config_uuid ----------------------- ... </pre> </div></div> <p>After remounting w/ nosvc and running:<br/> lctl replace_nids t32fs-OST0000 192.168.139.20@tcp</p> <p>same log files is now:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>Header size : 8192 Time : Mon May 20 09:13:03 2013 Number of records: 35 Target uuid : ----------------------- ... </pre> </div></div> <p>The "Target uuid" is also deleted from t32fs-MDT0000.</p> <p>I used conf-sanity/32 tarball disk2_1-ldiskfs.tar.bz2 as my starting point.</p> LU-3357

lctl replace_nids loses Target UUID from llog header

Bug Critical Resolved Fixed Nathaniel Clark Nathaniel Clark Mon, 20 May 2013 13:24:23 +0000 Thu, 11 Jul 2013 14:06:42 +0000 Thu, 11 Jul 2013 14:06:42 +0000 Lustre 2.4.0 Lustre 2.5.0 0 2 <p><a href="http://review.whamcloud.com/6395" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/6395</a></p> <p>I wonder is that so critical to see that UUID? I find it useless, we know already that this is config llog, just because of name. Is it really helpful for something or used by some other tool?</p> <p>Mike,</p> <p>This field doesn't seem to be used too often, but it is checked in the lctl conf_param code path, and if it's not set correctly, the conf_param fails (see llog_init_handle) in MDS debug_log in <a href="https://maloo.whamcloud.com/test_sets/8391fe9a-c0cf-11e2-8490-52540035b04c" class="external-link" target="_blank" rel="nofollow noopener">https://maloo.whamcloud.com/test_sets/8391fe9a-c0cf-11e2-8490-52540035b04c</a></p> <p>OK, got it.</p> <p>Patch merged to master (post 2.4.51)</p> Blocker LU-2200 Development Rank 1|hzvran: Rank (Obsolete) 8313 Severity