Web Viewer 12.1 users are getting an error page. localhost.log shows this error: java.lang.OutOfMemoryError: Java heap space.
Out of Memory Condition
Need to reset the Java heap space
Microsoft Windows Server, Tomcat running as a Windows Service
Resolve this problem by increasing the amount of memory for Tomcat. If you are running Tomcat as a service, use the tomcat9w utility (name varies with the version of Tomcat)
Free memory: 83.36 MB Total memory: 174.50 MB Max memory: 228.00 MB
Generally you should allow no more than half of the available RAM for the operating system and other overhead and the rest should be available for Tomcat and Web Viewer.
For example, with a server that has 12 Gig available, you could specify up to 6 Gig for Tomcat.
Modify accordingly for other versions of Tomcat.