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-5054 Lustre <p>The codes have some inconsistency about the length of pool name. Creating and setting a 16 byte pool name to a directory succeeds. But creating a file under that directory fails. Following script will reproduce that problem.</p> <p>#!/bin/bash<br/> FSNAME=server1<br/> MNT=/mnt/lustre<br/> lctl pool_new $FSNAME.aaaaaaaaaaaaaaaa<br/> lctl pool_add $FSNAME.aaaaaaaaaaaaaaaa $FSNAME-OST0000<br/> mkdir $MNT/dir2<br/> lfs setstripe -p aaaaaaaaaaaaaaaa $MNT/dir2<br/> dd if=/dev/zero of=$MNT/dir2/file bs=1M count=100</p> LU-5054

File creation failure in directory with 16 byte pool name

Bug Critical Resolved Fixed Cliff White Li Xi patch Tue, 13 May 2014 07:22:11 +0000 Thu, 4 Aug 2016 22:21:31 +0000 Sun, 2 Nov 2014 16:24:56 +0000 Lustre 2.6.0 Lustre 2.7.0 0 5 <p>I am not sure which way is the best to fix this, because it is easy to break compatibility. Following is a patch which tries to fix it.<br/> <a href="http://review.whamcloud.com/10306" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/10306</a></p> <p>Thank you for the contribution, the patch is in our testing system and will be reviewed. </p> <p>Will you be submitting a new patch to address the reviews?</p> <p>Sorry for my late reply. I've updated the patch.</p> <p>Regarding compatibility concerns about that patch, I found that existing pools which have 16 byte names will be ignored when running on Lustre with that patch. And I don't think 16 byte pool name was widely used before, since it was not working well at all.</p> <p><span class="error">&#91;root@vm12 CONFIGS&#93;</span># pwd<br/> /mnt/ldiskfs/CONFIGS<br/> <span class="error">&#91;root@vm12 CONFIGS&#93;</span># llog_reader vm12-client | grep pool<br/> #31 (120)pool new 0:vm12-clilov 1:vm12 2:aaaaaaaaaaaaaaaa <br/> #34 (144)pool add 0:vm12-clilov 1:vm12 2:aaaaaaaaaaaaaaaa 3:vm12-OST0000_UUID <br/> <span class="error">&#91;root@vm12 CONFIGS&#93;</span># lctl pool_list vm12<br/> Pools from vm12:<br/> <span class="error">&#91;root@vm12 CONFIGS&#93;</span># ll /proc/fs/lustre/lov/vm12-MDT0000-mdtlov/pools/<br/> total 0<br/> <span class="error">&#91;root@vm12 CONFIGS&#93;</span># ll /proc/fs/lustre/lov/*/pools<br/> /proc/fs/lustre/lov/vm12-clilov-ffff8800ce9f0800/pools:<br/> total 0<br/> <span class="error">&#91;root@vm12 CONFIGS&#93;</span># ll /proc/fs/lustre/lod/vm12-MDT0000-mdtlov/pools/<br/> total 0</p> <p>Patch has been merged, I am closing this issue, please reopen if needed</p> Related LUDOC-340 Development Rank 1|hzwmef: Rank (Obsolete) 13962 Severity