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-5894 Lustre <p>2.4 and 2.5 clients receive -524, which is ENOTSUPP, when trying to create remote (NOT striped) directories on current master.</p> <p>Centclient19 is running 2.5.0, the servers are running reasonably current master:<br/> <span class="error">&#91;root@centclient19 test&#93;</span># lfs mkdir -i 1 test<br/> error on LL_IOC_LMV_SETSTRIPE 'test' (3): Unknown error 524<br/> error: mkdir: create stripe dir 'test' failed</p> <p>Attached is the log from the MDS responsible for returning the error and the log from the client receiving it. (centss02 is the server, centclient19 is the client)</p> 2.4/2.5 clients, master servers (from last week) LU-5894

DNE II Testing: 2.4/2.5 clients unable to create remote directories against current master servers

Bug Major Resolved Fixed Di Wang Patrick Farrell Mon, 10 Nov 2014 19:17:38 +0000 Tue, 5 May 2015 12:21:29 +0000 Fri, 16 Jan 2015 18:45:20 +0000 Lustre 2.6.0 Lustre 2.7.0 0 6 <p>The problem probably comes from here</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre> static int mdt_remote_permission(struct mdt_thread_info *info, struct mdt_object *parent, struct mdt_object *child) { ............ if (S_ISDIR(attr-&gt;la_mode) &amp;&amp; spec-&gt;u.sp_ea.eadata != NULL &amp;&amp; spec-&gt;u.sp_ea.eadatalen != 0 &amp;&amp; !mdt_is_striped_client(exp)) return -ENOTSUPP; } </pre> </div></div> <p>Hmm, we should allow if the stripe_count == 0, I will cook a patch.</p> <p><a href="http://review.whamcloud.com/12715" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/12715</a></p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="http://review.whamcloud.com/12715/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/12715/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-5894" title="DNE II Testing: 2.4/2.5 clients unable to create remote directories against current master servers" class="issue-link" data-issue-key="LU-5894"><del>LU-5894</del></a> mds: allow 2.4/2.5 clients create remote dir<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 1a165c02f5e97c830800d6dcbc11e86790fc015d</p> <p>Patch landed to Master.</p> <p>A similar error (also using non-root account) appeared during soak testing using build <a href="https://build.hpdd.intel.com/job/lustre-b2_5_fe/38/" class="external-link" target="_blank" rel="nofollow noopener">https://build.hpdd.intel.com/job/lustre-b2_5_fe/38/</a> : </p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@lola-16 soaked]# mkdir parent [root@lola-16 soaked]# lfs mkdir -i 0 parent/child_0 error on LL_IOC_LMV_SETSTRIPE 'parent/child_0' (3): Invalid argument error: mkdir: create stripe dir 'parent/child_0' failed [root@lola-16 soaked]# lfs mkdir -i 1 parent/child_1 error on LL_IOC_LMV_SETSTRIPE 'parent/child_1' (3): Invalid argument error: mkdir: create stripe dir 'parent/child_1' failed [root@lola-16 soaked]# Write failed: Broken pipe </pre> </div></div> <p>dmesg entry on client related to the event, reads as</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>LustreError: 135586:0:(dir.c:1166:ll_dir_ioctl()) child_0: wrong lum magic cd20cd0 or size 48: rc = -14 </pre> </div></div> <p>No error messages on the server side.</p> <p>Frank - I suspect you'll want to open a new ticket for that error. This ticket is for a specific error which was seen with particular client versions &amp; was resolved. (Also, the original report is with root, not a non-root user.)</p> <p>Please ignore my comment above as it was caused by installation error for a single client. Actually the node was running build artifacts of <em>master</em> branch still.<br/> I'm sorry for the spam and any inconvenience.</p> Related Development Rank 1|hzx0lb: Rank (Obsolete) 16471 Severity