Here are the recommended hardware and memory requirements for your in-house  server. Important ip addresses are also listed here.

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Hardware Requirements

The minimum recommended hardware configuration for your Live Forms server is:

• 2 gigahertz (GHz) 32-bit (x86) or 64-bit (x64) processor
• 4 gigabyte (GB) of system memory
• 100 GB hard drive

However you must size your hardware platform to your specific form usage characteristics. As the number of concurrent users and forms increases so must the system memory. For a medium use production server consider increasing the JVM RAM allocation to 6 or 8 gigabytes. Refer to the memory configuration topic below.

Memory Configuration

The  Tomcat bundle comes pre-configured with default memory usage settings. While the defaults are sufficient for initial usage, as your forms, business logic and submissions grow, so will the memory needs of the   server.

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 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.

You'll see something like this in setenv.[bat,sh]:

set JAVA_OPTS=-Xms128m -Xmx512m -Djava.awt.headless=true
-Dfrevvo.users.path="%CATALINA_HOME%\..\data\users"

Troubleshooting

Solutions for memory errors are discussed below:

OutOfMemoryError: Java heap space

SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

To solve this edit setenv.[bat,sh] to increase the minimum and maximum heap size via the parameters: -Xmx and -Xms.

For example: -Xmx512m to -Xmx1g. Make sure also that the machine where  is installed has enough memory installed. If you change -Xmx to 1g your machine will need more then 1g ram.

OutOfMemoryError: PermGen space

MemoryError: PermGen space
java.lang.OutOfMemoryError: PermGen space

Java has a fixed space allocated for classes and other statics that is usually enough in normal cases, but could be quickly filled up if there is on the fly code generation or significant business logic in your forms.

To solve this edit setenv.[bat,sh] increase the maximum perm size via the paramenter: -XX:MaxPermSize

For example: -XX:MaxPermSize=128M

IP Addresses

The IP address for http://app.frevvo.com/ (frevvo cloud server) is 54.86.85.105. Customers that use firewall white listing for  http://app.frevvo.com/ must add this IP address to their white list . This is applicable for outgoing HTTP POSTs to connectors. For example if your forms are posting to the frevvo database connector or any other connector you installed behind your company firewall.

 The IP address for www.frevvo.com and app.frevvo.com is 54.86.98.4. Customers do not need to take any action as this is handled by the DNS entry automatically.