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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Hi, folks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">We’ve been really pleased with our 389 servers, which have been successfully running as a multi-master pair in production for 7 weeks, following (elapsed) months
of development.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Unfortunately, in the last few days their performance has radically degraded to the point where they are becoming unusable due to excessive memory consumption.
At first, we suspected a recent update to the package – but are no longer convinced that’s the problem.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">I’d really appreciate any suggestions on how to troubleshoot this further.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">SYMPTOMS</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">389 ignores its 4GB userRoot
<i>nsslapd-cachememsize</i> and its overall memory usage expands to encompass all of the server’s 8GB RAM – and a large proportion of its 10GB swap. The service eventually fails, and hangs the server.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">DETAILS<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">As per the previous guidance for RHEL 6 installations, we had been using the packages from the COPRS repository (<i>389-ds-base-1.2.11.32-1</i> aka
<i>1.2.11.32 B2014.247.2316</i>).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">(As several of our applications require CoS/dynamic attributes, earlier versions of the RHEL packages were unusable for us until this fix was ported:
<a href="https://fedorahosted.org/389/ticket/47762#comment:8">https://fedorahosted.org/389/ticket/47762#comment:8</a> – which was only recently applied to the RHEL packages).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Due to an unfortunate misconfiguration, the production servers received automated updates – and were upgraded to RHEL 6.6, the latest COPRS package (1.2.11.32-1),
and a new kernel :-/<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">The directory contains 236,340 entries, and
<i>id2entry.db4</i> is 3.6GB.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">STEPS TAKEN<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">We’ve tried to balance isolating the problem with maintaining a critical service for our users:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol;color:#002060"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">An additional 8GB RAM (and additional CPU) was added to the VM to mitigate the immediate problem – but this was soon swallowed up too.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol;color:#002060"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Attempting to reproduce this on our equivalent development servers has not been successful, even when subjecting them to load.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol;color:#002060"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Downgrading to the RHEL packages (<i>1.2.11.15-48
</i>aka <i>1.2.11.15 B2014.300.2010</i>) as per Noriko’s very helpful procedure below (though I stopped the services prior to the downgrade). No obvious difference.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol;color:#002060"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Rebooting into the previous kernel (2.6.32-431.29.2). This slowed the problem, but only to an extent.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Not attempted yet:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo4"><![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol;color:#002060"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Turning on debugging on the production servers, as they’re in a fragile and sluggish state.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo4"><![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol;color:#002060"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Building the latest 1.3.x build on RHEL 6. Will be attempting this soon…<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo4"><![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol;color:#002060"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Installing RHEL 7.0 on a fresh VM, as we don’t have experience with 7 yet.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo4"><![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol;color:#002060"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Downgrading to the previous COPRS package, as no longer publicly available(?)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060">Please let me know if more information would help…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060;mso-fareast-language:EN-GB">Kind regards,<br>
Steve<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> <a href="mailto:389-users-bounces@lists.fedoraproject.org">
389-users-bounces@lists.fedoraproject.org</a> [<a href="mailto:389-users-bounces@lists.fedoraproject.org">mailto:389-users-bounces@lists.fedoraproject.org</a>]
<b>On Behalf Of </b>Noriko Hosoi<br>
<b>Sent:</b> 25 October 2014 00:05<br>
<b>To:</b> <a href="mailto:389-announce@lists.fedoraproject.org">389-announce@lists.fedoraproject.org</a>; General discussion list for the 389 Directory server project.<br>
<b>Subject:</b> [389-users] Please take an action: 389 Directory Server 1.2.11.X Discontinued for EL6<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<h2>389 Directory Server <span class="caps">1.2.11.X</span> Discontinued for <span class="caps">EL6</span><o:p></o:p></h2>
<p>The 389 Directory Server team announces the binary release of 389-ds-base version
<span class="caps">1.2.11</span> for <span class="caps">EL6</span> will be stopped via temporary
<span class="caps">COPR</span> repository. We encourage you to switch it to the official version included in the Red Hat Enterprise Linux 6 distribution or its equivalent <span class="caps">OS.</span><o:p></o:p></p>
<h3 id="how-to-switch-to-the-official-version">How to switch to the official version<o:p></o:p></h3>
<p>Remove a yum repo file which points to the temporary <span class="caps">COPR</span> repository (e.g., nhosoi-389-ds-base-epel6-epel-6.repo) from /etc/yum.repos.d.<o:p></o:p></p>
<p>If the current 389 Directory Server <span class="caps">1.2.11</span> has the greater build number than 15, for instance,
<span class="caps">1.2.11.32</span>, downgrade it once by “yum downgrade” as follows.<o:p></o:p></p>
<p><code><span style="font-size:10.0pt">yum downgrade 389-ds-base 389-ds-base-libs</span></code><o:p></o:p></p>
<p>Then, upgrade to make sure you have the latest version.<o:p></o:p></p>
<p><code><span style="font-size:10.0pt">yum upgrade 389-ds-base</span></code><o:p></o:p></p>
<p>After upgrade completes, run <strong>setup-ds-admin.pl -u</strong> to update your directory server/admin server/console information.<o:p></o:p></p>
<p><code><span style="font-size:10.0pt">setup-ds-admin.pl -u</span></code><o:p></o:p></p>
<p>See <a href="http://www.port389.org/docs/389ds/legacy/install-guide.html">Install_Guide</a> for more information about the initial installation, setup, and upgrade<o:p></o:p></p>
<p>See <a href="http://www.port389.org/docs/389ds/development/source.html">Source</a> for information about source tarballs and
<span class="caps">SCM</span> (git) access.<o:p></o:p></p>
<p><a href="http://www.port389.org/docs/389ds/releases/end-1-2-11.html">http://www.port389.org/docs/389ds/releases/end-1-2-11.html</a><span style="color:#002060"><o:p></o:p></span></p>
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