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-15562 Lustre <p>There may be possible racing between batched statahead RPC and rename()/migrate() operation.<br/> To avoid this racer, the MDT uses a DLM trylock to obtain the DLM PR lock for file attributes in a batched statahead RPC. A failed try lock means other users maybe modify the directory simultaneously, it should stop batched RPC for statahead immediately.</p> LU-15562

statahead: using try lock for batched statahead to avoid deadlock with rename and migrate operations

Improvement Minor Resolved Fixed Qian Yingjin Qian Yingjin Thu, 17 Feb 2022 09:22:31 +0000 Wed, 31 May 2023 20:30:35 +0000 Wed, 31 May 2023 20:30:35 +0000 Lustre 2.16.0 0 2 <p>"Yingjin Qian &lt;qian@ddn.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/46549" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/46549</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15562" title="statahead: using try lock for batched statahead to avoid deadlock with rename and migrate operations" class="issue-link" data-issue-key="LU-15562"><del>LU-15562</del></a> statahead: using try lock for batched RPCs<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: f118b29138dcb9517b5eb311200fb8d0a751f6c4</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/c/fs/lustre-release/+/46549/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/46549/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15562" title="statahead: using try lock for batched statahead to avoid deadlock with rename and migrate operations" class="issue-link" data-issue-key="LU-15562"><del>LU-15562</del></a> statahead: using try lock for batched RPCs<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 58549f9780418d548c9af284dd39b6a436878a7a</p> <p>Landed for 2.16</p> Related LU-15975 LU-14139 Development Rank 1|i02ijj: Rank (Obsolete) 9223372036854775807