UX Crash - "java.lang.OutOfMemoryError: Java heap space"

[anz.fin.all.mailbox]

Hello All,

We experienced an issue with UX last night where it stopped responding and it required a restart of the Apliqo Application Server Windows service. Everything else was working fine (Arc, Pulse, Perspectives, TM1 Web). We’ve been trying to find out what went wrong and we found in the UX catalina log the following entry at around the time UX stopped responding:

SEVERE [https-jsse-nio-8880-exec-3] org.apache.coyote.AbstractProtocol$ConnectionHandler.process Failed to complete processing of a request
	java.lang.OutOfMemoryError: Java heap space

Is anyone able to explain this error to us and whether or not it would have resulted in UX becoming unresponsive?

Thanks,
David

[rmazziero]

Hi David,

The application may be consuming all the available Java memory that was set during installation. Probably increasing it would solve it, assuming you have enough RAM memory available on the Server where Apliqo UX is installed.

See the details below for steps on how to check and increase the Java memory for Apliqo, these days it is recommended to leave at least 4096 MB (when installing the default Max value is set to 1024mb)

UX's Title Element selection just keep spinning

Hi @Lance.Wang , The config of the Java Memory for Apliqo is on the Server side, this is the memory the Apliqo UX Tomcat service. you can see details about it on this CODE article about Canvas, it is still similar, although the Tomcat version is updated for UX. You can also see the steps on how to change it from this older post below… I believe the only change is that the newer versions of UX would be using newer versions of Tomcat. On my machine is “tomcat9w.exe” for Version 2023.02 FP1. …

Hope this helps!

Rodrigo

[anz.fin.all.mailbox]

Thanks for the reply @rmazziero. We did have it set to 4096 but I have increased it and we will monitor it’s usage.

Thanks,
David