Forcing Java to use Internet Protocol version 4

If your library files are stored on Amazon Web Services S3 (AWS) and you discover instances of the following event in the server logs, you should force Java to use Internet Protocol version 4 (IPv4): java.net.UnknownHostException: <your bucket name>.s3.amazonaws.com at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)

About this task

This parameter is set manually in a Spotfire Server configuration file.

Procedure

Open the appropriate file in a text editor:
- If you are running Spotfire Server as a Windows service, open the <installation dir>/tomcat/bin/service.bat file.
- If you are not running Spotfire Server as a Windows service, open the <installation dir>/tomcat/bin/setenv.bat file.
Locate the variable named JAVA_OPTS.
Enter the following parameter in the JAVA_OPTS section: -Djava.net.preferIPv4Stack=true
The file will look similar to this (the new parameter is highlighted in yellow):
Save and close the file.
If you are running Spotfire Server as a Windows service, reinstall the Windows service.
Restart Spotfire Server.