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-8851 Lustre <p>There could be cases where different systems have the same UIDs but different GIDs, or vice versa, and therefore need mapping only for UIDs or GIDs. There should be a way to enable only UID mapping or only GID mapping. </p> LU-8851

nodemap: add flags to limit mapping to UID or GID only

Improvement Minor Resolved Fixed Kit Westneat Kit Westneat Fri, 18 Nov 2016 15:34:42 +0000 Wed, 15 Dec 2021 02:36:45 +0000 Mon, 1 May 2017 18:45:16 +0000 Lustre 2.10.0 1 3 <p>Kit Westneat (kit.westneat@gmail.com) uploaded a new patch: <a href="http://review.whamcloud.com/23853" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/23853</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-8851" title="nodemap: add flags to limit mapping to UID or GID only" class="issue-link" data-issue-key="LU-8851"><del>LU-8851</del></a> nodemap: add uid/gid only flags to control mapping<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 0ae6cd826a556c30d5d5ae4f68b933e398ed6935</p> <p>So far this patch works fine with the 2.9 community release.</p> <p>I have used it quite a lot and only a single time I noticed an error message when using nodemap_add_idmap but it did work as expected in the end:</p> <p><span class="error">&#91;3785311.191429&#93;</span> LustreError: 117363:0:(mgs_handler.c:779:mgs_iocontrol_nodemap()) MGS: OBD_IOC_NODEMAP command CE046 for xstream: rc = -2</p> <p>Don't worry, I will report any other suspicious behavior. <img class="emoticon" src="https://jira.whamcloud.com/images/icons/emoticons/smile.png" height="16" width="16" align="absmiddle" alt="" border="0"/></p> <p>I guess the patch has several green lights from reviewers. Would Intel be ok to provide this patch in 2.9 FE?</p> <p>Thanks!</p> <p>Hi Kit,</p> <p>We have been using this patch for some time now, it is a critical patch to us and we're very happy to have it. We have noticed that lfs quota is broken from the GID-only clients with nodemap enabled. </p> <p>Example canonical GID 3199 on Oak mapped to 2709 on XStream:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">[root@oak-rbh01 ~]# lfs quota -gh oak_ruthm /oak Disk quotas <span class="code-keyword">for</span> group oak_ruthm (gid 3199): Filesystem used quota limit grace files quota limit grace /oak 4.028T 9.313T 10T - 115749 1450000 1500000 - </pre> </div></div> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">[sthiell@xstream-ln01 ~]$ lfs quota -hg srcc /oak Disk quotas <span class="code-keyword">for</span> group srcc (gid 2709): Filesystem used quota limit grace files quota limit grace /oak 4.028T 0k 0k - 0 0 0 - </pre> </div></div> <p>We have both group disk and inodes quota enabled but only the disk usage is reported, weird heh?</p> <p>We're seeing the same behaviour on both Lustre 2.5 (Cray C3) and IEEL 3.0 (Lustre 2.7 based) clients. Intel, this is also tracked in DELL-291.</p> <p>I also see that a quota test failed. I checked your patch, but I didn't find anything related to quota. Kit, do you have an idea of what could be wrong here?</p> <p>Thanks much!<br/> Stephane</p> <p>Hi Stephane,</p> <p>I'm glad the patch is working out! While I was digging into this, I found a typo in the nodemap quota code where if you check group quota, it actually maps the UID. I created <a href="https://jira.whamcloud.com/browse/LU-9258" title="nodemap: group quota ID not properly mapped " class="issue-link" data-issue-key="LU-9258"><del>LU-9258</del></a> and uploaded:<br/> <a href="https://review.whamcloud.com/26209" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/26209</a></p> <p>Can you check out this patch and see if it fixes your issues?</p> <p>Thanks,<br/> Kit</p> <p>Hi Kit,</p> <p>Good catch!!! Will do ASAP and let you know how it goes. Thanks so much!</p> <p>All the best,<br/> Stephane</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="https://review.whamcloud.com/23853/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/23853/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-8851" title="nodemap: add flags to limit mapping to UID or GID only" class="issue-link" data-issue-key="LU-8851"><del>LU-8851</del></a> nodemap: add uid/gid only flags to control mapping<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f7815c80d95b20c97317fbd7010013dca009121e</p> <p>Landed for 2.10</p> Related LU-13172 LU-3291 LU-9671 Development Rank 1|hzyw2v: Rank (Obsolete) 9223372036854775807