<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Ahh. This user has different UIDs on the clients and the server. Do they actually have to be the same? I thought the MDS and the OSS servers just store files with the uid/gid as reported by the client. I did not assume that the servers need to map these UIDs to a user name.<div><br></div><div>Michael<br><div><br></div><div><br><div><div>Am 22.09.2010 um 10:57 schrieb Thomas Roth:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hi Michael,<br><br>"Identifier removed" occured to me when the user data base was not accessible by<br>the MDS - when the MDS didn't know about any normal user. "root" is of course known<br>there, but what does e.g. "id mkluge" say on your MDS?<br><br>Regards,<br>Thomas<br><br>On 09/22/2010 10:29 AM, Michael Kluge wrote:<br><blockquote type="cite">Hi all,<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I have a 1.8.3 running on a couple of servers connected via IB to a<br></blockquote><blockquote type="cite">small cluster. To test the network performance I have one MDS and 14 OST<br></blockquote><blockquote type="cite">residing in ram disks. One the client it is mounted on /lustre.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I have a file in this directory (created as root and then chown'ed to<br></blockquote><blockquote type="cite">'mkluge'):<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">mkluge@r2i0n0:~> ls -la /lustre/dfddd/ball<br></blockquote><blockquote type="cite">-rw-r--r-- 1 mkluge zih 14680064000 2010-09-22 10:14 /lustre/dfddd/ball<br></blockquote><blockquote type="cite">mkluge@r2i0n0:~> cd /lustre/dfddd/<br></blockquote><blockquote type="cite">mkluge@r2i0n0:/lustre/dfddd> ls<br></blockquote><blockquote type="cite">/bin/ls: .: Identifier removed<br></blockquote><blockquote type="cite">mkluge@r2i0n0:/lustre/dfddd> ls -la<br></blockquote><blockquote type="cite">/bin/ls: .: Identifier removed<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Has anyone an idea what this could be? I can't event create a directory<br></blockquote><blockquote type="cite">in /lustre<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">mkluge@r2i0n0:~> mkdir /lustre/ww<br></blockquote><blockquote type="cite">mkdir: cannot create directory `/lustre/ww': Identifier removed<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">'root' is able to create the directory. Setting permissions to '777' or<br></blockquote><blockquote type="cite">'1777' does not help either.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">The MDS was formated to use mgt and mgs from the same ram device.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Regards, Michael<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">_______________________________________________<br></blockquote><blockquote type="cite">Lustre-discuss mailing list<br></blockquote><blockquote type="cite"><a href="mailto:Lustre-discuss@lists.lustre.org">Lustre-discuss@lists.lustre.org</a><br></blockquote><blockquote type="cite"><a href="http://lists.lustre.org/mailman/listinfo/lustre-discuss">http://lists.lustre.org/mailman/listinfo/lustre-discuss</a><br></blockquote><br>-- <br>--------------------------------------------------------------------<br>Thomas Roth<br>Department: Informationstechnologie<br>Location: SB3 1.262<br>Phone: +49-6159-71 1453 Fax: +49-6159-71 2986<br><br>GSI Helmholtzzentrum für Schwerionenforschung GmbH<br>Planckstraße 1<br>64291 Darmstadt<br><a href="http://www.gsi.de">www.gsi.de</a><br><br>Gesellschaft mit beschränkter Haftung<br>Sitz der Gesellschaft: Darmstadt<br>Handelsregister: Amtsgericht Darmstadt, HRB 1528<br><br>Geschäftsführung: Professor Dr. Dr. h.c. Horst Stöcker,<br>Dr. Hartmut Eickhoff<br><br>Vorsitzende des Aufsichtsrates: Dr. Beatrix Vierkorn-Rudolph<br>Stellvertreter: Ministerialdirigent Dr. Rolf Bernhardt<br><br></div></blockquote></div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Andale Mono'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Andale Mono'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br>-- <br><br>Michael Kluge, M.Sc.<br><br>Technische Universität Dresden<br>Center for Information Services and<br>High Performance Computing (ZIH)<br>D-01062 Dresden<br>Germany<br><br>Contact:<br>Willersbau, Room WIL A 208<br>Phone: (+49) 351 463-34217<br>Fax: (+49) 351 463-37773<br>e-mail: <a href="mailto:michael.kluge@tu-dresden.de">michael.kluge@tu-dresden.de</a><br>WWW: <a href="http://www.tu-dresden.de/zih">http://www.tu-dresden.de/zih</a></div></span></span>
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