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-15383 Lustre <p>Running e2fsck on an MDT with a large number of striped directories shows a large number of disconnected directory entries. On several different systems this is showing a large number of errors during e2fsck, resulting in tens or hundreds of thousands of entries that need to be connected to <tt>list+found</tt>:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>Unconnected directory inode 2102494 (/REMOTE_PARENT_DIR/???) Connect to /lost+found? yes Unconnected directory inode 2102510 (/REMOTE_PARENT_DIR/???) Connect to /lost+found? yes Unconnected directory inode 2102514 (/REMOTE_PARENT_DIR/???) Connect to /lost+found? yes </pre> </div></div> <p>This doesn't appear to be caused by filesystem errors, as it has been seen repeatedly, so it is more likely to be a bug in the code (eg. rename doesn't connect striped directories properly, maybe if the rename source was on a remote MDT and the target is on the local MDT, or the reverse, or during "<tt>lfs migrate -m</tt>" or similar. </p> LU-15383

DNE directories not connected to REMOTE_PARENT_DIR

Bug Critical Open Unresolved Lai Siyao Andreas Dilger Fri, 17 Dec 2021 17:25:48 +0000 Thu, 3 Nov 2022 12:18:08 +0000 0 7 <p>It looks <a href="https://jira.whamcloud.com/browse/LU-15388" title="Wrong dotdot FID parameter for osd_add_dot_dotdot()" class="issue-link" data-issue-key="LU-15388"><del>LU-15388</del></a> explained this, and the patch there can fix this issue.</p> <p>I don't know if that will help. The "<tt>..</tt>" <b>FID</b> is not checked by e2fsck, so there must still be some other inconsistency at the ldiskfs level that is causing e2fsck to report a problem. </p> <p>"Lai Siyao &lt;lai.siyao@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45961" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45961</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15383" title="DNE directories not connected to REMOTE_PARENT_DIR" class="issue-link" data-issue-key="LU-15383">LU-15383</a> osd-ldiskfs: check .. upon object destroy<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: aacc3718e81314c4157874dfbf438a8b696bbf56</p> <p>The test result shows this only happens in sanity 300p, which tests striped directory with -ENOSPC. </p> <p>This might be related to <a href="https://jira.whamcloud.com/browse/LU-15388" title="Wrong dotdot FID parameter for osd_add_dot_dotdot()" class="issue-link" data-issue-key="LU-15388"><del>LU-15388</del></a>, since <tt>REMOTE_PARENT_DIR</tt> entries have the wrong "<tt>..</tt>" entry, so updates to that directory will be incorrect.</p> Cloners LU-15330 Related LU-15388 LU-10329 LU-4876 Development Rank 1|i02cvr: Rank (Obsolete) 9223372036854775807 Severity