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-3846 Lustre <p>We ran sanity tests with 2 OSTs and got following errors.</p> <p>== sanity test 56u: check lfs find -stripe-index works == 08:53:30 (1377824010)<br/> sanity test_56u: @@@@@@ FAIL: "lfs find -stripe-index 0 -type f /mnt/lustre/d0.sanity/d56u" wrong: found 16, expected 12 </p> <p>We found that the newly created files located on two OSTs rather than one. This might happen when the default stripe of mount point is two. So I think when creating the file, 'lfs setstripe -i 1' might not be enough, '-c 1' should be added too.</p> <p>I will push the patch soon.</p> LU-3846

Sanity 56u error with two OSTs

Bug Minor Resolved Fixed Emoly Liu Li Xi patch Wed, 28 Aug 2013 13:07:33 +0000 Sun, 14 Jan 2018 15:40:16 +0000 Sun, 14 Jan 2018 15:40:16 +0000 Lustre 2.11.0 1 5 <p>Here is the patch.<br/> <a href="http://review.whamcloud.com/7479" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/7479</a></p> <p>Emoly</p> <p>Could you please take care of this patch?</p> <p>Thanks</p> <p>Peter</p> <p>Do you mean the default stripe count of mount point is two?</p> <p>Sorry, that is a mistake. I found the default stripe count of mount point is -1, not 2. Here is the stripe informantion after running the test suit. Somehow, the new files were created with 2 stripe_count rather than 1 when the directory stripe count was -1. I thought the new file should have stripe count of 1 as the right behavior, am I wrong?</p> <p><span class="error">&#91;root@vm1 ~&#93;</span># lfs getstripe /mnt/lustre/<br/> /mnt/lustre/<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: -1 <br/> /mnt/lustre//d0.sanity<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: -1 <br/> <span class="error">&#91;root@vm1 ~&#93;</span># lfs getstripe /mnt/lustre/d0.sanity/<br/> /mnt/lustre/d0.sanity/<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: -1 <br/> /mnt/lustre/d0.sanity//d56u<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: 0 <br/> <span class="error">&#91;root@vm1 ~&#93;</span># lfs getstripe /mnt/lustre/d0.sanity/d56u/<br/> /mnt/lustre/d0.sanity/d56u/<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: 0 <br/> /mnt/lustre/d0.sanity/d56u//f.sanity.56u.0<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 1<br/> obdidx objid objid group<br/> 1 15 0xf 0<br/> 0 15 0xf 0</p> <p>/mnt/lustre/d0.sanity/d56u//file2<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 4 0x4 0<br/> 1 4 0x4 0</p> <p>/mnt/lustre/d0.sanity/d56u//f.sanity.56u.2<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 1<br/> obdidx objid objid group<br/> 1 17 0x11 0<br/> 0 17 0x11 0</p> <p>/mnt/lustre/d0.sanity/d56u//dir1<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: 0 pool: <br/> /mnt/lustre/d0.sanity/d56u//dir3<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: 0 pool: <br/> /mnt/lustre/d0.sanity/d56u//f.sanity.56u.3<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 1<br/> obdidx objid objid group<br/> 1 18 0x12 0<br/> 0 18 0x12 0</p> <p>/mnt/lustre/d0.sanity/d56u//dir2<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: 0 pool: <br/> /mnt/lustre/d0.sanity/d56u//file1<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 3 0x3 0<br/> 1 3 0x3 0</p> <p>/mnt/lustre/d0.sanity/d56u//f.sanity.56u.1<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 1<br/> obdidx objid objid group<br/> 1 16 0x10 0<br/> 0 16 0x10 0</p> <p>/mnt/lustre/d0.sanity/d56u//file3<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 5 0x5 0<br/> 1 5 0x5 0<br/> <span class="error">&#91;root@vm1 ~&#93;</span># lfs getstripe /mnt/lustre/d0.sanity/d56u/dir1/<br/> /mnt/lustre/d0.sanity/d56u/dir1/<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: 0 pool: <br/> /mnt/lustre/d0.sanity/d56u/dir1//file1<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 6 0x6 0<br/> 1 6 0x6 0</p> <p>/mnt/lustre/d0.sanity/d56u/dir1//file3<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 8 0x8 0<br/> 1 8 0x8 0</p> <p>/mnt/lustre/d0.sanity/d56u/dir1//file2<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 7 0x7 0<br/> 1 7 0x7 0</p> <p><span class="error">&#91;root@vm1 ~&#93;</span># lfs getstripe /mnt/lustre/d0.sanity/d56u/dir2/<br/> /mnt/lustre/d0.sanity/d56u/dir2/<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: 0 pool: <br/> /mnt/lustre/d0.sanity/d56u/dir2//file1<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 9 0x9 0<br/> 1 9 0x9 0</p> <p>/mnt/lustre/d0.sanity/d56u/dir2//file3<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 11 0xb 0<br/> 1 11 0xb 0</p> <p>/mnt/lustre/d0.sanity/d56u/dir2//file2<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 10 0xa 0<br/> 1 10 0xa 0</p> <p><span class="error">&#91;root@vm1 ~&#93;</span># lfs getstripe /mnt/lustre/d0.sanity/d56u/dir3/<br/> /mnt/lustre/d0.sanity/d56u/dir3/<br/> stripe_count: -1 stripe_size: 1048576 stripe_offset: 0 pool: <br/> /mnt/lustre/d0.sanity/d56u/dir3//file1<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 12 0xc 0<br/> 1 12 0xc 0</p> <p>/mnt/lustre/d0.sanity/d56u/dir3//file3<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 14 0xe 0<br/> 1 14 0xe 0</p> <p>/mnt/lustre/d0.sanity/d56u/dir3//file2<br/> lmm_stripe_count: 2<br/> lmm_stripe_size: 1048576<br/> lmm_pattern: 1<br/> lmm_layout_gen: 0<br/> lmm_stripe_offset: 0<br/> obdidx objid objid group<br/> 0 13 0xd 0<br/> 1 13 0xd 0</p> <p>stripe_count=-1 means full striping, I guess your system has 2 OSTs, lmm_string_count of your new created files is 2.</p> <p>In lustre, the default stripe count should be 1, if you run "setstripe -d" you will see like this:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@centos6-3 master]# ./lustre/utils/lfs getstripe -v /mnt/lustre/d (Default) /mnt/lustre/d stripe_count: 1 stripe_size: 1048576 stripe_offset: -1 </pre> </div></div> <p>There is a keyword "Default". That is why I suggested to add "setstripe -d" in your patch.</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="https://review.whamcloud.com/7479/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/7479/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-3846" title="Sanity 56u error with two OSTs" class="issue-link" data-issue-key="LU-3846"><del>LU-3846</del></a> test: Fix sanity test_56* with different layouts<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 8f39c90355f4d60698b4b59d7a49aa1a714282ac</p> <p>Landed for 2.11</p> Related LU-3886 Development End date Tue, 10 Sep 2013 13:07:33 +0000 Rank 1|hzvzgn: Rank (Obsolete) 9961 Severity Start date Wed, 28 Aug 2013 13:07:33 +0000