How do I increase memory on Tomcat 7 when running as a Windows Service

Question

I am trying to run Tomcat 7 as a Windows Service  XP and Windows 7    I see places to set the -Xmx and -Xms jvm args in catalina bat  but I m not sure how to do it when using  CATALINA HOME bin service bat install service-name  I looked around but the best I could find was that I needed to update windows registry key  though I m not sure which one to edit   I m hoping there s an easier way  is there   Update  I m not using the windows installer mainly because I m running multiple instances of tomcat on the same machine but with different ports  for reasons I d rather not go into here   If I can use the installer with multiple instances using different ports  then I d like to know how  but regardless  is it possible to do increase the memory on a tomcat windows service without the UI tools that come with the installer

User · Answer

For Tomcat 7 to increase memory    Identify your service name  you will find it in the service properties  under the  Path to executable  at the end of the line  For me it is   RS  Tomcat70 so the name is Tomcat70  Then write as administrator    tomcat7 exe   US  Tomcat70 --JvmOptions -Xmx1024M

User · Answer

If you are running a custom named service  you should see two executables in your Tomcat bin directory In my case with Tomcat 8  08 14 2019  10 24 PM           116 648 Tomcat-Custom exe 08 14 2019  10 24 PM           119 720 Tomcat-Customw exe                2 File s         236 368 bytes   Running the  w  terminated executable will let you configure Xmx in the Java tab

User · Answer

Assuming that you ve downloaded and installed Tomcat as Windows Service Installer exe file from the Tomcat homepage  then check the Apache feather icon in the systray  or when absent  run Monitor Tomcat from the start menu   Doubleclick the feather icon and go to the Java tab  There you can configure the memory     Restart the service to let the changes take effect

User · Answer

The answer to my own question is  I think  to use tomcat7 exe   cd  CATALINA HOME   bin service bat install tomcat   bin tomcat7 exe   US  tomcat7 --JvmMs 512 --JvmMx 1024 --JvmSs 1024   Also  you can launch the UI tool mentioned by BalusC without the system tray or using the installer with tomcat7w exe    bin tomcat7w exe   ES  tomcat   An additional note to this   Setting the --JvmXX parameters  through the UI tool or the command line  may not be enough  You may also need to specify the JVM memory values explicitly  From the command line it may look like this   bin tomcat7w exe   US  tomcat7 --JavaOptions -Xmx 1024 -Xms 512      Be careful not to override the other JavaOption values  You can try updating bin service bat or use the UI tool and append the java options  separate each value with a new line

User · Answer

ES tomcat -  This may not work if you have changed the service name during the installation   Either run the command without any service name    bin tomcat7w exe   ES   or with exact service name    bin tomcat7w exe   ES YourServiceName

User · Answer

According to catalina sh customizations should always go into your own setenv sh  or setenv bat respectively  eg   CATALINA OPTS  -Xms512m -Xmx1024m    My guess is that setenv bat will also be called when starting a service I might be wrong  though  since I m not a windows user

[java] How do I increase memory on Tomcat 7 when running as a Windows Service?

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