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-7058 Lustre <p>Hit error if migrate a dir ends with "/", non-slash works well.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@onyx-27 lustre]# lfs migrate -m 1 /mnt/lustre/other-dir/ /mnt/lustre/other-dir migrate failed: No such file or directory (-2) error: migrate: migrate file '/mnt/lustre/other-dir/' failed [root@onyx-27 lustre]# lfs migrate -m 1 /mnt/lustre/other-dir [root@onyx-27 lustre]# </pre> </div></div> lustre-master build # 3142 RHEL6.6 LU-7058

Hit "No such file or directory" error when migrating a dir ends with slash

Bug Minor Resolved Cannot Reproduce Steve Guminski Sarah Liu dne3 easy Fri, 28 Aug 2015 22:06:17 +0000 Tue, 7 Apr 2020 23:45:19 +0000 Tue, 7 Apr 2020 23:45:19 +0000 Lustre 2.8.0 0 4 <p>I guess that the shell will auto-complete the directory name to have a trailing '/' so this could be hit fairly easily. I haven't looked at the code yet, but running <tt>strace lfs migrate -c 2 bat/</tt> on my 2.5.3 system generates:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>open("bat", O_RDONLY) = 3 ioctl(3, IPMICTL_SEND_COMMAND_SETTIME, 0x1ab0030) = -1 ENOENT (No such file or directory) close(3) = 0 mmap(NULL, 1056768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f68a701f000 open("bat/.\f\23\24\22:VOLATILE::", O_WRONLY|O_CREAT|O_NOCTTY|O_ASYNC|0x1000000, 0644) = 3 ioctl(3, 0x4008669a, 0x7ffffdf058f0) = 0 open("bat/", O_RDWR|O_DIRECT) = -1 EISDIR (Is a directory) write(2, "cannot open bat/ (Is a directory"..., 34cannot open bat/ (Is a directory) ) = 34 close(3) = 0 munmap(0x7f68a701f000, 1056768) = 0 write(2, "error: migrate: migrate stripe f"..., 50error: migrate: migrate stripe file 'bat/' failed </pre> </div></div> <p>so it looks like it doesn't detect that this is a directory and try to migrate the contents. However, it also doesn't work with <tt>lfs migrate -c 2 bat</tt>:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>open(".", O_RDONLY) = 3 ioctl(3, IPMICTL_SEND_COMMAND_SETTIME, 0xab8030) = 0 close(3) = 0 getcwd("/myth/tmp", 4096) = 10 open("/myth/tmp/.\f\23\24\22:VOLATILE::", O_WRONLY|O_CREAT|O_NOCTTY|O_ASYNC|0x1000000, 0644) = 3 ioctl(3, 0x4008669a, 0x7fff4a7e85e0) = 0 open("bat", O_RDWR|O_DIRECT) = -1 EISDIR (Is a directory) write(2, "cannot open bat (Is a directory)"..., 33cannot open bat (Is a directory) ) = 33 close(3) = 0 write(2, "error: migrate: migrate stripe f"..., 49error: migrate: migrate stripe file 'bat' failed ) = 49 </pre> </div></div> <p>Is this changed with newer versions of lfs?</p> <p>Steve, do you have the cycles to look into this one? It might just be a quick fix (e.g. drop trailing '/' from pathname if it is present).</p> <p>Sure, I'm just finishing up with another ticket, so I'll take a look at this one next.</p> <p>Steve, any chance you could make a patch for this?</p> <p>It looks like the latest lfs still has problems migrating directories regardless of whether there is a trailing slash or not, as you discovered.  I'm looking into this now.</p> <p>Steve Guminski (stephenx.guminski@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/30177" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/30177</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-7058" title="Hit &quot;No such file or directory&quot; error when migrating a dir ends with slash" class="issue-link" data-issue-key="LU-7058"><del>LU-7058</del></a> utils: Allow lfs migrate to operate on directories<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 14673ec012bc48391af47b38e8a7b42c1cde22c1</p> <p>This works fine on master, not sure when it was fixed.</p> Development Rank 1|hzxlmv: Rank (Obsolete) 9223372036854775807 Severity