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-5008 Lustre <p>By guessing the next FID and stating it in .lustre/fid I can cause spurious negative dentry caching. I never considered this to be a bug because we don't usually use .lustre/fid this way. But see <a href="http://review.whamcloud.com/#/c/10185/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/#/c/10185/</a>.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>t:lustre# touch f0 t:lustre# lfs path2fid f0 [0x200000400:0x1:0x0] t:lustre# sys_access .lustre/fid/[0x200000400:0x1:0x0] t:lustre# sys_access .lustre/fid/[0x200000400:0x2:0x0] sys_access: cannot access '.lustre/fid/[0x200000400:0x2:0x0]' with mode `f': No such file or directory t:lustre# touch f1 t:lustre# lfs path2fid f1 [0x200000400:0x2:0x0] t:lustre# sys_access .lustre/fid/[0x200000400:0x2:0x0] sys_access: cannot access '.lustre/fid/[0x200000400:0x2:0x0]' with mode `f': No such file or directory t:lustre# rm .lustre/fid/[0x200000400:0x2:0x0] rm: cannot remove `.lustre/fid/[0x200000400:0x2:0x0]': No such file or directory t:lustre# sys_access .lustre/fid/[0x200000400:0x2:0x0] sys_access: cannot access '.lustre/fid/[0x200000400:0x2:0x0]' with mode `f': No such file or directory t:lustre# rmdir .lustre/fid/ rmdir: failed to remove `.lustre/fid/': Operation not permitted t:lustre# sys_access .lustre/fid/[0x200000400:0x2:0x0] t:lustre# sys_stat .lustre/fid/[0x200000400:0x3:0x0] cannot stat '.lustre/fid/[0x200000400:0x3:0x0]': No such file or directory t:lustre# touch f2 t:lustre# lfs path2fid f2 [0x200000400:0x3:0x0] t:lustre# sys_stat .lustre/fid/[0x200000400:0x3:0x0] cannot stat '.lustre/fid/[0x200000400:0x3:0x0]': No such file or directory </pre> </div></div> LU-5008

bad negative dentry caching in .lustre/fid

Bug Major Open Unresolved WC Triage John Hammond fid Mon, 5 May 2014 18:47:07 +0000 Thu, 7 Mar 2019 14:08:35 +0000 Lustre 2.6.0 0 3 Related LU-11501 Development Rank 1|hzwltj: Rank (Obsolete) 13861 Severity