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<p class="MsoNormal"><span lang="EN-US">Hi Spacewalk lovers <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Since we upgrade from 2.0 to 2.2, we encounter a capacity problem due to CPU usage overall.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">When users load a system page in the GUI, the tomcat process grow to 90% usage. Api and GUI become unavailable or very slow.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Our architecture is as following:<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">5 rhn proxies<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">LVS Master/slave mode
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">1 front master: SERVICES="jabberd $TOMCAT httpd osa-dispatcher Monitoring MonitoringScout rhn-search cobblerd taskomatic"<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">1 front slave: SERVICES="jabberd $TOMCAT httpd osa-dispatcher Monitoring MonitoringScout "<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">1 cluster PGSQL<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">Our masters have 2* Intel(R) Xeon(R) CPU E5-2609 / 92 RAM / raid 1 using CentOS 6.5.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">We have about 6000 systems registered, about 40 organizations and more than 600 channels (including cloned)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">My questions are:<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">- Is it possible to scale spacewalk horizontally ? By changing lvs configuration to Active/Active ? By using HAProxy ? other ?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">- Is it possible to tune tomcat better than adding memory ? (we use actually -Xms8196m -Xmx16384m)<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">- What is the maximum number of systems that we can register in 1 organisation ? (Actually our max seems to be 1700)<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-US">- Is there a maximum number of systems that we can register in a Spacewalk cluster ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thank in advance<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:FR">Sébastien NAHELOU</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span lang="EN-US" style="color:#1F497D;mso-fareast-language:FR">System engineer</span></i><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana","sans-serif";color:black;mso-fareast-language:FR"><br>
</span><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black;mso-fareast-language:FR">Worldline – Seclin - France</span><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:FR">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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