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-1162 Lustre <p>I am trying to use debugfs to get the fullpath for a ost object.</p> <p>running on OST<br/> service151 ~/e2fsprogs-1.41.90.wc3/e2scan # debugfs -R "stat /O/0/d0/65504" /dev/mapper/ddn5a-nbp5-ost16<br/> debugfs 1.41.90.wc3 (28-May-2011)<br/> Inode: 7995447 Type: regular Mode: 0666 Flags: 0x80000<br/> Generation: 2244192670 Version: 0x00000000:006fd7ad<br/> User: 4806 Group: 1128 Size: 14680064<br/> File ACL: 0 Directory ACL: 0<br/> Links: 1 Blockcount: 28672<br/> Fragment: Address: 0 Number: 0 Size: 0<br/> ctime: 0x4f1df040:00000000 &#8211; Mon Jan 23 15:41:52 2012<br/> atime: 0x80015180:00000003 &#8211; Tue Jan 19 19:14:08 2038<br/> mtime: 0x4f1df040:00000000 &#8211; Mon Jan 23 15:41:52 2012<br/> crtime: 0x4f1dc599:1f4238f8 &#8211; Mon Jan 23 12:39:53 2012<br/> Size of extra inode fields: 28<br/> Extended attributes stored in inode body: <br/> fid = "6f 1d 00 eb 0e 00 00 02 00 00 00 00 1f 00 00 00 e0 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 " (32)<br/> fid: objid=65504 seq=0 parent=<span class="error">&#91;0x200000eeb001d6f:0x0:0x0&#93;</span> stripe=31<br/> EXTENTS:<br/> (0-2047):9906176-9908223, (2048-3583):9914368-9915903</p> <p>Now Run on MDT to get full path</p> <p>service150 ~ # debugfs -V <br/> debugfs 1.41.90.wc3 (28-May-2011)<br/> Using EXT2FS Library version 1.41.90.wc3<br/> service150 ~ # debugfs <del>R 'ncheck 0x200000eeb001d6f' /dev/mapper/nbp5</del>-vg-mdt5<br/> debugfs 1.41.90.wc3 (28-May-2011)<br/> Inode Pathname</p> Lustre 2.1 and e2fsprogs-1.41.90.wc3 LU-1162

debugfs 1.41.90.wc3 not printing path on mdt

Bug Minor Resolved Fixed Cliff White Mahmoud Hanafi Thu, 1 Mar 2012 20:46:08 +0000 Mon, 9 Jul 2012 16:11:19 +0000 Mon, 9 Jul 2012 16:11:19 +0000 Lustre 2.1.0 0 1 <p>Bobi</p> <p>Could you please comment on this one?</p> <p>Thanks</p> <p>Peter</p> <p>For the second step, where you are looking up the FID on the MDS, you should instead be using "lfs fid2path </p> {FID} <p>" on any client to resolve the pathname. That is considerably faster than the debugfs mechanism (which doesn't work on 2.x files). </p> <p>Got it thanks. Should update the lustre2.x docs. You can close this.</p> <p>&#8211; <br/> Mahmoud Hanafi<br/> NASA Ames Research Center<br/> Mail Stop 258-6<br/> Bldg. 258<br/> P.O. Box 1<br/> Moffett Field, CA 94035-0001</p> <p>Office: 650-604-1454<br/> Cell: 510-386-0615</p> <p>Cliff another doc issue</p> <p><a href="https://jira.whamcloud.com/browse/LUDOC-64" title="Change debugfs information to use FID lookup" class="issue-link" data-issue-key="LUDOC-64"><del>LUDOC-64</del></a> opened to track the documentation update. Closing this bug. </p> Development Rank 1|hzvh7z: Rank (Obsolete) 6439 Severity