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-15526 Lustre <p>If object is on remote MDT, PDO lock is not supported, because two locks can't be fetched in one RPC right now, once the batch processing framework is ready, these two locks can be enqueued in a batch. This will greatly reduce conflicts in parent lock, and improve remote directory creation/unlink performance. Since filesystem-wide default directory layout is set by default, this will speed up mdtest directory creation/unlink test.</p> LU-15526

PDO lock for object on remote MDT

Technical task LU-14146 Minor Resolved Fixed Lai Siyao Lai Siyao Mon, 7 Feb 2022 13:13:38 +0000 Fri, 29 Sep 2023 06:40:38 +0000 Thu, 31 Aug 2023 14:52:58 +0000 Lustre 2.16.0 0 3 <p>"Lai Siyao &lt;lai.siyao@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/46733" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/46733</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15526" title="PDO lock for object on remote MDT" class="issue-link" data-issue-key="LU-15526"><del>LU-15526</del></a> mdt: enable remote PDO lock<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 6e876dff4c5d565506be7ebe7acaaba428a7129f</p> <p>Lai, will this patch improve mdtest shared directory create performance in striped directories?</p> <p>AFAIK mdtest perf test creates local sub directories, which won't be affected by this patch. This improves mkdir performance for cases that both local and remote directories will be created.</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/c/fs/lustre-release/+/46733/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/46733/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15526" title="PDO lock for object on remote MDT" class="issue-link" data-issue-key="LU-15526"><del>LU-15526</del></a> mdt: enable remote PDO lock<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 7270e16fcbe52ad89634b2e1e033e983248d0566</p> <p>Landed for 2.16</p> Related LU-14761 LU-17157 LU-17075 Development Rank 1|i02hhj: Rank (Obsolete) 9223372036854775807