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-6307 Lustre <p>This issue was created by maloo for sarah &lt;sarah@whamcloud.com&gt;</p> <p>This issue relates to the following test suite run: <a href="https://testing.hpdd.intel.com/test_sets/e154ad20-bfc4-11e4-881f-5254006e85c2" class="external-link" target="_blank" rel="nofollow noopener">https://testing.hpdd.intel.com/test_sets/e154ad20-bfc4-11e4-881f-5254006e85c2</a>.</p> <p>The sub-test test_105 failed with the following error:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>mount failed </pre> </div></div> <p>MDS</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>Lustre: DEBUG MARKER: == recovery-small test 105: IR: NON IR clients support == 20:22:45 (1425154965) Lustre: DEBUG MARKER: /usr/sbin/lctl list_param mgs.*.ir_timeout Lustre: DEBUG MARKER: lctl set_param -n mgs.MGS.live.lustre=state=full Lustre: MGS (2.7.0.0) refused the connection from different version MDT (2.6.0.0) 10.1.4.150@tcp 17c0ca90-6e3b-8642-1b7b-a19358c36e81 Lustre: MGS (2.7.0.0) refused the connection from different version MDT (2.6.0.0) 10.1.4.150@tcp 17c0ca90-6e3b-8642-1b7b-a19358c36e81 Lustre: MGS (2.7.0.0) refused the connection from different version MDT (2.6.0.0) 10.1.4.150@tcp 17c0ca90-6e3b-8642-1b7b-a19358c36e81 Lustre: MGS (2.7.0.0) refused the connection from different version MDT (2.6.0.0) 10.1.4.150@tcp 17c0ca90-6e3b-8642-1b7b-a19358c36e81 Lustre: DEBUG MARKER: /usr/sbin/lctl mark recovery-small test_105: @@@@@@ FAIL: mount failed </pre> </div></div> LU-6307

Interop 2.6.0<->2.7 recovery-small test_105: MGS refused the connection from different version MDT

Bug Blocker Resolved Fixed nasf Maloo Sun, 1 Mar 2015 21:15:09 +0000 Tue, 3 Mar 2015 18:10:23 +0000 Tue, 3 Mar 2015 18:10:23 +0000 Lustre 2.7.0 Lustre 2.7.0 Lustre 2.8.0 0 6 <p>This is caused by <a href="http://review.whamcloud.com/13285" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/13285</a> but it shouldn't check the versions between MDS and MGS, only between MDS nodes.</p> <p>It is not because of the check between MDS and MGS, instead, it is because we reuse the flag "OBD_CONNECT_MDS_MDS" as "OBD_CONNECT_MNE_SWAB". For the connection from MGC, it will set OBD_CONNECT_MNE_SWAB as following:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre> /* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS * connection. It is a temporary bug fix for Imperative Recovery interop * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for * 2.2 clients/servers is no longer needed. LU-1252/LU-1644. */ #define OBD_CONNECT_MNE_SWAB OBD_CONNECT_MDS_MDS ... lustre_start_mgc(...) { ... #if LUSTRE_VERSION_CODE &lt; OBD_OCD_VERSION(3, 0, 53, 0) data-&gt;ocd_connect_flags |= OBD_CONNECT_MNE_SWAB; #endif if (lmd_is_client(lsi-&gt;lsi_lmd) &amp;&amp; lsi-&gt;lsi_lmd-&gt;lmd_flags &amp; LMD_FLG_NOIR) data-&gt;ocd_connect_flags &amp;= ~OBD_CONNECT_IMP_RECOV; ... } </pre> </div></div> <p>Generally, on the server side, we can distinguish whether it is from MGC or not by checking OBD_CONNECT_IMP_RECOV. But in the recovery-small test_105, because of "noir" is specified, the OBD_CONNECT_IMP_RECOV is dropped. So the server cannot know whether it is from MGC or old MDT. Then failed.</p> <p>Fan Yong (fan.yong@intel.com) uploaded a new patch: <a href="http://review.whamcloud.com/13927" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/13927</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-6307" title="Interop 2.6.0&lt;-&gt;2.7 recovery-small test_105: MGS refused the connection from different version MDT" class="issue-link" data-issue-key="LU-6307"><del>LU-6307</del></a> obdclass: distinguish MGC/MDT connection properly<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 96913037db05898a29cc3cfbf21dffb5914606f0</p> <p>Sarah, would you please to verify above patch with b2_6 client for recovery-small test_105? Thanks!</p> <p>Fan Yong (fan.yong@intel.com) uploaded a new patch: <a href="http://review.whamcloud.com/13928" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/13928</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-6307" title="Interop 2.6.0&lt;-&gt;2.7 recovery-small test_105: MGS refused the connection from different version MDT" class="issue-link" data-issue-key="LU-6307"><del>LU-6307</del></a> obdclass: distinguish MGC/MDT connection properly<br/> Project: fs/lustre-release<br/> Branch: b2_7<br/> Current Patch Set: 1<br/> Commit: 0aa708733ace578813bef17eda1a745e3dedad27</p> <p>FanYong, just let you know the patch works</p> <p>Thanks Sarah!</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="http://review.whamcloud.com/13928/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/13928/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-6307" title="Interop 2.6.0&lt;-&gt;2.7 recovery-small test_105: MGS refused the connection from different version MDT" class="issue-link" data-issue-key="LU-6307"><del>LU-6307</del></a> obdclass: distinguish MGC/MDT connection properly<br/> Project: fs/lustre-release<br/> Branch: b2_7<br/> Current Patch Set: <br/> Commit: 0964ac7523ce816413b309f5b65a988713f607d0</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="http://review.whamcloud.com/13927/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/13927/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-6307" title="Interop 2.6.0&lt;-&gt;2.7 recovery-small test_105: MGS refused the connection from different version MDT" class="issue-link" data-issue-key="LU-6307"><del>LU-6307</del></a> obdclass: distinguish MGC/MDT connection properly<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 1bdc4fd0594e8948623bde18e7b5d691104d8808</p> <p>Landed for 2.7 and 2.8</p> Related LU-6086 Development Rank 1|hzx7c7: Rank (Obsolete) 17662 Severity