Whamcloud Community JIRA https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 [LU-7906] osd-zfs should not set blocksize on MDT https://jira.whamcloud.com/browse/LU-7906 Lustre <p>osd-zfs should not set blocksize on MDT. currently it does as the check is broken.</p> LU-7906 osd-zfs should not set blocksize on MDT Improvement Critical Resolved Fixed Nathaniel Clark Alex Zhuravlev Tue, 22 Mar 2016 17:03:34 +0000 Sat, 1 Oct 2016 00:37:12 +0000 Wed, 1 Jun 2016 13:34:30 +0000 Lustre 2.9.0 0 6 <p>Assigning to Alex as part of the ZFS metadata performance work</p> <p>This seems like it could be a major cause of performance loss on the MDT? It would be worthwhile to get a patch and test this sooner rather than later. </p> <p>in my testing it doesn't improve performance a lot, but except for large dnodes and dnode accounting I haven't found any silver bulltet. it's rather a lot of small improvements closing the gap with ldiskfs.</p> <p>Alex Zhuravlev (alexey.zhuravlev@intel.com) uploaded a new patch: <a href="http://review.whamcloud.com/19286" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/19286</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-7906" title="osd-zfs should not set blocksize on MDT" class="issue-link" data-issue-key="LU-7906"><del>LU-7906</del></a> osd: no blocksize on non-OST objects<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 12370e8871c19618b20b3af3293b72a19617a9c4</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="http://review.whamcloud.com/19286/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/19286/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-7906" title="osd-zfs should not set blocksize on MDT" class="issue-link" data-issue-key="LU-7906"><del>LU-7906</del></a> osd: no blocksize on non-OST objects<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: aa84fbc8165f526dae4bd824a48c186c3ac2f639</p> <p>Landed to master for 2.9.0</p> Blocker LU-7895 Related Development Rank 1|hzy5bb: Rank (Obsolete) 9223372036854775807