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-11710 Lustre <p>The file is lost after migrate a sub dir under a dir with default stripe, here are the steps<br/> 2 MDS with 1 MDT on each, 1 OST, 1 client</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@trevis-60vm4 ~]# cd /mnt/lustre/ [root@trevis-60vm4 lustre]# mkdir test-0 [root@trevis-60vm4 lustre]# lctl dl 0 UP mgc MGC10.9.6.158@tcp 3637a725-753d-86b4-1ebf-fb1bdf78fb28 4 1 UP lov lustre-clilov-ffff978f79f97000 a48ec6c3-f700-afb4-00c3-9288ece40f26 3 2 UP lmv lustre-clilmv-ffff978f79f97000 a48ec6c3-f700-afb4-00c3-9288ece40f26 3 3 UP mdc lustre-MDT0000-mdc-ffff978f79f97000 a48ec6c3-f700-afb4-00c3-9288ece40f26 4 4 UP mdc lustre-MDT0001-mdc-ffff978f79f97000 a48ec6c3-f700-afb4-00c3-9288ece40f26 4 5 UP osc lustre-OST0000-osc-ffff978f79f97000 a48ec6c3-f700-afb4-00c3-9288ece40f26 4 [root@trevis-60vm4 lustre]# mkdir test-0/test-1 [root@trevis-60vm4 lustre]# lfs setdirstripe -D -c 2 test-0/ [root@trevis-60vm4 lustre]# touch test-0/test-1/foo [root@trevis-60vm4 lustre]# echo aaa &gt; test-0/test-1/foo [root@trevis-60vm4 lustre]# cat test-0/test-1/foo aaa [root@trevis-60vm4 lustre]# lfs migrate -m 1 test-0/test-1 [root@trevis-60vm4 lustre]# ls test-0/test-1/ [root@trevis-60vm4 lustre]# </pre> </div></div> <p>I also tried on master branch, it doesn't have the problem</p> lustre-b2_10 2.10.6-RC2 (build #149) ldiskfs DNE LU-11710

File is lost after migrate a sub dir under dir with default stripe

Bug Minor Resolved Cannot Reproduce WC Triage Sarah Liu Wed, 28 Nov 2018 04:43:27 +0000 Fri, 21 Jan 2022 00:28:12 +0000 Fri, 21 Jan 2022 00:28:12 +0000 Lustre 2.10.6 0 3 <p>Sarah, does this problem still happen if the "<tt>lfs setdirstripe</tt>" is not run on <tt>test-0/</tt>? We don't support restriping directories in 2.10, that was added by Lai in 2.12 only. The "<tt>lfs migrate</tt>" command shouldn't be using the default striping from the parent directory, since the <tt>test-1/</tt> directory already exists. If <tt>lfs migrate</tt> is somehow using the default layout from the parent, then this is a bug and we should not allow migrating to a striped directory.</p> <p>Without the "lfs setdirstripe", the problem should gone, I tested dir(without striped) migration long time ago and it worked fine. </p> <p>What this means is that we need to prevent "<tt>lfs migrate</tt>" from running on a striped directory in 2.10.</p> <p>It looks like this is no longer a problem with 2.12.</p> Development Rank 1|i00727: Rank (Obsolete) 9223372036854775807 Severity