Tomcat CPU usage hitting 100%

patrickjulier

Whenever a CRF is viewed or edited, TOMCAT CPU usage increases to 100%. This is a recent problem. Is there any suggestions for tuning either TOMCAT or Postgres? The application is essentially unusable at the moment

Thanks

Patrick

kkristianson

Have you added this to the tomcat JAVA configuration
-XX:+UseParallelGC
-XX:ParallelGCThreads=4
-XX:MaxPermSize=180m
-XX:+CMSClassUnloadingEnabled

and added INITIAL MEMEORY POOL to 128
MAXIMUM MEMORY POOL to 1280

patrickjulier

Many thanks for your very prompt reply - checked the settings they are as recommended. I then discovered the problem - a few days ago we had a data extract issue - To try to discover the issue i changed the logging setting in the openclinica config file to debug to see if that would shed any light on the problem . This appears to be what was killing tomcat - Have put back to 'info' in the log file and all ok again :-)

kkristianson