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The first important step is to ensure that  is installed on a machine with sufficient cpu and ram. "Sufficient" depends on your  usage (number of users, number of forms/flows in use, number of submissions per day, etc..).

You will know when you need to increase allocated memory when you see two common errors appear in the Tomcat logfiles <frevvo-home>//tomcat/logs. You can tune the frevvo/tomcat installation by editing <frevvo-home>/tomcat/bin/setenv.bat on Windows and setenv.sh on Unix.

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set CATALINA_OPTS=%CATALINA_OPTS% -Xms256m -Xmx1024m

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frevvo as a Windows service

If you are running  as a Windows service, you will have to edit frevvo/tomcat/bin/service.bat line to increase the Java Heap and Permgen spaces. Here is an example of the line you need to edit in that file:

"%EXECUTABLE%" //US//%SERVICE_NAME% ++JvmOptions "-XX:+UseConcMarkSweepGC;-XX:+CMSClassUnloadingEnabled;-Djava.io.tmpdir=%CATALINA_BASE%\temp;-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager;-

Djava.util.logging.config.file=%CATALINA_BASE%\conf\logging.properties;-Dfile.encoding=UTF-8;-Djava.awt.headless=true;-Dspring.config.location=file:///%CATALINA_BASE%/conf/,file:///%CATALINA_BASE%/conf/frevvo-config.properties;-

Dderby.stream.error.file=%CATALINA_BASE%/logs/derby.log" --JvmMs 256 --JvmMx 1024

See the Apache documentation on Tomcat Windows Service for more details.

After making these modifications to the service.bat file, you must Remove/Reinstall Live Forms frevvo as a Windows service for the changes to take effect.

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By default, the <frevvo-home>\solr-6x.6x.2x\bin\solr script,(replace "x.x.x" with the version number) script sets the maximum Java heap size to 512M (-Xmx512m). This may not be sufficient especially when reporting on/indexing a large number of submissions. It may cause "out of memory" exceptions in the <frevvo-home>solr-6x.6x.2x\server\logs\solr.log file. The JVM heap size can be increased to resolve this. Make sure that the machine where the Insight Server is installed has enough memory to accommodate your changes.

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1. Increase memory allocations for the frevvo and Insight (Solr) servers. Please see the documentation below..
2. Schedule a weekly restart of your frevvo and Insight (solr) servers. It usually takes a couple minutes to do this and is very helpful to prevent issues, memory leaks and potential server sluggishness and locks.
3. If you are using a SQL Server database for , be sure to configure Snapshot Isolation for that database.
4. Add thread count properties to the <frevvo-home>/tomcat/conf/frevvo-config.properties. These properties improve performance if you are experiencing slowness when using forms by increasing the CPU resources available to running form rules.
   
   Follow these steps:
   1. Stop .
   2. Navigate to <frevvo-home>/tomcat/conf.
   3. Edit the frevvo-config.properties file

   4. Add the following properties to the file and save the changes.
      

      Code Block
      frevvo.threadpool.coresize=40 frevvo.threadpool.maxsize=400 org.quartz.threadPool.threadCount=1

       

   5. Restart .
      

Troubleshooting

Solutions for memory errors are discussed below.

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The insight server has its own log file under <frevvo-home>solr-6x.6x.2x\server\logs. If you see an Out of Memory exception in this log, review Insight Server Memory Settings to change the Insight Server heap size.

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