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-12926 Lustre <p>For a large (e.g. 5) number of MDTs, doing the following:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>lfs mkdir -c 5 dir/</pre> </div></div> <p>Can yield an MDT distribution of: {{4, 0, 4, 1, 2 }}or other distributions with repeated and missing mdt indexes.</p> <p>Manually specifying mdts via <tt>-i</tt> works as expected.</p> <p>I believe this is due to the "auto_distributed" logic in <tt>lustre/utils/lfs.c::lfs_setdirstripe()</tt></p> LU-12926

lfs mkdir -c can cause repeated MDT indexes

Bug Major Open Unresolved Lai Siyao Nathaniel Clark DNE Fri, 1 Nov 2019 16:02:26 +0000 Fri, 1 Nov 2019 19:20:13 +0000 Lustre 2.13.0 Lustre 2.12.3 0 3 <p>It shouldn't be possible to do this with "-c", only when the metadata overstripingpatch adds the "-C" option. </p> <p>We should add basic sanity checking on the MDS to avoid this. It should limit the stripe count to the number of available MDTs rather than return an error. </p> Related LU-12273 Development Rank 1|i00ovj: Rank (Obsolete) 9223372036854775807 Severity