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-10660 Lustre <p>Lustre lease lock is usually used to 'stabilize' file data so that it won't be accessed by any entities while certain operations are in progress. Open lock is used on the MDT side for this purpose.</p> <p>However, truncate will change file data but it didn't revoke lease lock. We should grab <tt>mot_open_sem</tt> and check <tt>mot_lease_count</tt> to see if there exists any pending lease on the file. If lease exists, it should be broken.</p> LU-10660

Truncate should revoke lease lock

Improvement Critical Resolved Fixed Jian Yu Jinshan Xiong Mon, 12 Feb 2018 18:40:12 +0000 Tue, 18 Dec 2018 23:59:58 +0000 Sun, 16 Sep 2018 07:11:16 +0000 Lustre 2.11.0 Lustre 2.10.5 Lustre 2.12.0 0 8 <p>Jian</p> <p>Could you please investigate this issue?</p> <p>Thanks</p> <p>Peter</p> <p>Jinshan, is this a case where FLR resync could cause a bad replica to be created, and essentially lead to data corruption?</p> <p>Yes, and this would break any programs that uses lease lock for data exclusive access. </p> <p>Jian Yu (yujian@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/33093" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/33093</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-10660" title="Truncate should revoke lease lock" class="issue-link" data-issue-key="LU-10660"><del>LU-10660</del></a> mdt: revoke lease lock for truncate<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: cd1d8cb22eaafb671e3af3f22651bdbd74721a65</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/33093/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/33093/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-10660" title="Truncate should revoke lease lock" class="issue-link" data-issue-key="LU-10660"><del>LU-10660</del></a> mdt: revoke lease lock for truncate<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: e4c168165df201f8800118a4913bbb02e0bad3c1</p> <p>Patch landed to master branch for Lustre 2.12.0.</p> Development Rank 1|hzzsrb: Rank (Obsolete) 9223372036854775807