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-11874 Lustre <p>No big deal but I just noticed that:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>lctl conf_param fsname-OST*.obdfilter.brw_size=16 </pre> </div></div> <p>from the Lustre manual, seems broken. It doesn't change the brw_size values, even after remounting the OSTs.</p> <p>using</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>echo 16 &gt; /proc/fs/lustre/obdfilter/*${ost}*/brw_size </pre> </div></div> <p>or</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>lctl set_param obdfilter.fir-OST*.brw_size=16 </pre> </div></div> <p>just works fine to change the values temporarily. We use tuning.conf from shine which is applied at mount time so it doesn't really affect us but it might affect others. This is with 2.12.0.<br/>  </p> CentOS 7.6 LU-11874

conf_param brw_size seems broken

Bug Trivial Resolved Fixed Joseph Gmitter Stephane Thiell Fri, 18 Jan 2019 18:29:17 +0000 Fri, 8 Feb 2019 19:27:19 +0000 Fri, 8 Feb 2019 19:27:19 +0000 Lustre 2.12.0 0 4 <p>I don't think you can use wildcards with conf_param. It would be better to use <tt>lctl set_param -P obdfilter.&#42;.brw_size=16</tt>.</p> <p>Yep. If  you want to use wildcards you need to use lctl set_param -P obdfilter.*.brw_size=16.</p> <p>Ah, thanks much!<br/> This will need to be fixed there then: <a href="https://build.whamcloud.com/job/lustre-manual/lastSuccessfulBuild/artifact/lustre_manual.xhtml#idm139818994057696" class="external-link" target="_blank" rel="nofollow noopener">https://build.whamcloud.com/job/lustre-manual/lastSuccessfulBuild/artifact/lustre_manual.xhtml#idm139818994057696</a></p> <p>Joe, I think this one is for you.</p> <p>Joseph Gmitter (jgmitter@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/34193" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34193</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11874" title="conf_param brw_size seems broken" class="issue-link" data-issue-key="LU-11874"><del>LU-11874</del></a> rpc: Update command to persisently set brw_size<br/> Project: doc/manual<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: c56deb76ee178eb882c778fece62933221f1f8ec</p> <p>Joseph Gmitter (jgmitter@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/34193/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34193/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11874" title="conf_param brw_size seems broken" class="issue-link" data-issue-key="LU-11874"><del>LU-11874</del></a> rpc: Update command to persisently set brw_size<br/> Project: doc/manual<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 65203477576544bf5f75b8820b1ad2058ae6e249</p> <p>The documentation patch has landed to the doc branch.</p> Development Rank 1|i009xr: Rank (Obsolete) 9223372036854775807 Severity