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-17184 Lustre <p>damaged local config llog can stay on target and prevent it from mount. This happens because <tt>mgc_llog_local_copy()</tt> uses <tt>llog_erase()</tt> to remove llogs which can't do the job if llog header is damaged. Such situation can be resolved by manual cleanup via ldiskfs mount only.</p> <p>The <tt>mgc_llog_local_copy()</tt> should be reworked to remove local llog and its backup if they are not valid.</p> LU-17184

remove corrupted local config llog

Improvement Major Resolved Fixed Mikhail Pershin Mikhail Pershin Wed, 11 Oct 2023 19:22:45 +0000 Tue, 14 Nov 2023 22:37:44 +0000 Thu, 9 Nov 2023 01:09:09 +0000 Lustre 2.16.0 0 4 <p>"Mikhail Pershin &lt;mpershin@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/c/fs/lustre-release/+/52697" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/52697</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-17184" title="remove corrupted local config llog" class="issue-link" data-issue-key="LU-17184"><del>LU-17184</del></a> mgc: remove damaged local configs<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 82da0b05798b4ef367a26fbe9a4fdaca3aac797f</p> <p>The <tt>llog_erase()</tt> analysis showed that is can work without calling <tt>llog_init_handle()</tt> which validates  llog header and fails if it is damaged. So <tt>llog_erase()</tt> can just destroy llog as file without checking its internals. That resolves the part of issue about removal of damaged configs. The second part of solution is to avoid exiting with error when local config can't be copied to backup, there is no need to prevent mount. Instead we just proceed with remote llog copying and refresh local config.</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/c/fs/lustre-release/+/52697/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/52697/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-17184" title="remove corrupted local config llog" class="issue-link" data-issue-key="LU-17184"><del>LU-17184</del></a> mgc: remove damaged local configs<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 6a6e4ee20fe5aaad4beab5477e1c7d05e4e702e2</p> <p>Landed for 2.16</p> Related Development Rank 1|i03y4n: Rank (Obsolete) 9223372036854775807 Severity