topic High Tomcat's Java Virtual Memory above -Xmx setting? in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/high-tomcat-s-java-virtual-memory-above-xmx-setting/m-p/308327#M261457 <HTML><HEAD></HEAD><BODY><SPAN>Hi there,</SPAN><BR /><BR /><SPAN>We have a 3 years old Alfresco 4.2 server for around 500 casual users, with the following specs:</SPAN><BR /><BR /><SPAN>&lt;strong&gt;System:&lt;/strong&gt;</SPAN><BR /><BR /><SPAN>* RAM: 32 GB</SPAN><BR /><SPAN>* CPU: 6 cores</SPAN><BR /><SPAN>* Arch: 64 bits</SPAN><BR /><SPAN>* OS: Ubuntu 12.04</SPAN><BR /><BR /><SPAN>&lt;strong&gt;Applications:&lt;/strong&gt;</SPAN><BR /><BR /><SPAN>* Tomcat 7 (alfresco, share, solr)</SPAN><BR /><SPAN>* PostgreSQL</SPAN><BR /><BR /><SPAN>&lt;strong&gt;Resources usage:&lt;/strong&gt;</SPAN><BR /><BR /><SPAN>As consumed by Tomcat's java process:</SPAN><BR /><BR /><SPAN>* Resident memory: 5.79 GB</SPAN><BR /><SPAN>* Virtual memory: 16.5 GB</SPAN><BR /><BR /><SPAN>&lt;strong&gt;JVM Tuning:&lt;/strong&gt;</SPAN><BR /><BR /><SPAN>* Xms: 2 Gb </SPAN><BR /><SPAN>* Xmx: 12 Gb</SPAN><BR /><SPAN>* Perms: 512M</SPAN><BR /><BR /><SPAN>&lt;strong&gt;Questions:&lt;/strong&gt;</SPAN><BR /><BR /><SPAN>* Why does the java process's virtual memory exceeds by 4.5 GB the configured Xmx value of the JVM? How it is possible and how can I take real control of the maximum reserved memory for it?</SPAN><BR /><BR /><SPAN>* For PostgreSQL, how much memory could be allocated for around 100 concurrents users? I've noticed that each PostgreSQL process takes around 130 MB of virtual memory</SPAN></BODY></HTML> Fri, 17 Oct 2014 17:08:17 GMT jonvargas 2014-10-17T17:08:17Z High Tomcat's Java Virtual Memory above -Xmx setting? https://connect.hyland.com/t5/alfresco-archive/high-tomcat-s-java-virtual-memory-above-xmx-setting/m-p/308327#M261457 Hi there,We have a 3 years old Alfresco 4.2 server for around 500 casual users, with the following specs:&lt;strong&gt;System:&lt;/strong&gt;* RAM: 32 GB* CPU: 6 cores* Arch: 64 bits* OS: Ubuntu 12.04&lt;strong&gt;Applications:&lt;/strong&gt;* Tomcat 7 (alfresco, share, solr)* PostgreSQL&lt;strong&amp;g Fri, 17 Oct 2014 17:08:17 GMT https://connect.hyland.com/t5/alfresco-archive/high-tomcat-s-java-virtual-memory-above-xmx-setting/m-p/308327#M261457 jonvargas 2014-10-17T17:08:17Z Re: High Tomcat's Java Virtual Memory above -Xmx setting? https://connect.hyland.com/t5/alfresco-archive/high-tomcat-s-java-virtual-memory-above-xmx-setting/m-p/308328#M261458 <HTML><HEAD></HEAD><BODY><SPAN>Have you looked at these two files to see what the values are? I manually adjusted them and restarted the service. No issues. </SPAN><BR /><BR /><SPAN>/alfresco/tomcat/scripts/ctl.sh</SPAN><BR /><SPAN>/alfresco/tomcat/bin/setenv.sh</SPAN></BODY></HTML> Fri, 17 Oct 2014 19:53:29 GMT https://connect.hyland.com/t5/alfresco-archive/high-tomcat-s-java-virtual-memory-above-xmx-setting/m-p/308328#M261458 eswbitto 2014-10-17T19:53:29Z Re: High Tomcat's Java Virtual Memory above -Xmx setting? https://connect.hyland.com/t5/alfresco-archive/high-tomcat-s-java-virtual-memory-above-xmx-setting/m-p/308329#M261459 <HTML><HEAD></HEAD><BODY><SPAN>I've been using ctl.sh, maybe setenv.sh overrides the values. I will review it tomorrow.</SPAN><BR /><BR /><SPAN>Thanks.</SPAN></BODY></HTML> Mon, 20 Oct 2014 07:19:32 GMT https://connect.hyland.com/t5/alfresco-archive/high-tomcat-s-java-virtual-memory-above-xmx-setting/m-p/308329#M261459 jonvargas 2014-10-20T07:19:32Z Re: High Tomcat's Java Virtual Memory above -Xmx setting? https://connect.hyland.com/t5/alfresco-archive/high-tomcat-s-java-virtual-memory-above-xmx-setting/m-p/308330#M261460 <HTML><HEAD></HEAD><BODY><SPAN>I checked both files, I will use jconsole or something to examine the situation better.</SPAN></BODY></HTML> Sun, 26 Oct 2014 01:39:33 GMT https://connect.hyland.com/t5/alfresco-archive/high-tomcat-s-java-virtual-memory-above-xmx-setting/m-p/308330#M261460 jonvargas 2014-10-26T01:39:33Z