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ConfiguringSystemProperties ConfiguringSystemProperties

Configuring System Properties

Java 11

Set JVM properties on start-up to increase the heap memory (at least 4gb) and change the garbage collector. Also set a property to disable per-row hit statistics so CTP can better track hit statistics when Virtualize is under load.

For Virtualizecli:

virtualizecli.sh -startServer -data <WORKSPACE_LOCATION> -J-Xms2048m -J-Xmx4096m -J-server -J-XX:+UseConcMarkSweepGC -J-XX:+DisableExplicitGC -J-XX:+UseCompressedOops -J-XX:NewRatio=1 -J-Dparasoft.server.statistics.datasource.row.disabled=true

For WAR deployment (configured in the setenv file located in the <TOMCAT_HOME>/bin/setenv file directory):

JAVA_OPTS=-Xms2048m -Xmx4096m -XX:+UseConcMarkSweepGC -XX:+DisableExplicitGC -XX:+UseCompressedOops -XX:NewRatio=1 -Dparasoft.server.statistics.datasource.row.disabled=true

Java 17

Set JVM properties on start-up to increase the heap memory (at least 4GB) and disable and disable explicit garbage collection. Also set a property to disable per-row hit statistics so CTP can better track hit statistics when Virtualize is under load.

For Virtualizecli:

virtualizecli.sh -startServer -data <WORKSPACE_LOCATION> -J-Xms2048m -J-Xmx4096m -J-server -J-XX:+DisableExplicitGC -J-Dparasoft.server.statistics.datasource.row.disabled=true

For WAR deployment (configured in the setenv file located in the <TOMCAT_HOME>/bin/setenv file directory):

JAVA_OPTS="-Xms2048m -Xmx4096m -XX:+DisableExplicitGC" -Dparasoft.server.statistics.datasource.row.disabled=true

Configuring server.xml

1. Locate the HTTP Connector element in the server.xml file located under the <TOMCAT_HOME>/conf folder. The default connector port is 9080 for virtualizecli and 8080 for a WAR deployed in Tomcat.
2. Add/update the enableLookups and maxThreads attributes as shown in the following:

   Example:
   

   Code Block
   <Connector URIEncoding="UTF-8" connectionTimeout="20000" enableLookups="false" maxThreads="750" name="default" port="9080" protocol="HTTP/1.1" redirectPort="9443" server="Parasoft Server"/>

   This tells Tomcat to keep a processing thread pool of 750 threads. It also sets the acceptor thread count to 2 and disables DNS lookups.

3. Locate the Valve element toward the bottom of the file.

4. Comment out the Valve element as shown in the following:
   Example:

   Code Block
   <!--<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false" /> -->

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