If you get a log message like this:
tomee;catalina.out;${env:ENV};${env:USERTOKEN};2020-12-03 13:30:54,400 [ajp-nio-0.0.0.0-8009-exec-6] WARN org.hibernate.cache.ehcache.internal.strategy.AbstractReadWriteEhcacheAccessStrategy- HHH020008: Cache[ImmediateMembershipEntry] Key[ImmediateMembershipEntry#61a3c0a316ca435a856bc16f2268ee38] Lockable[(null)]
A soft-locked cache entry was expired by the underlying Ehcache. If this happens regularly you should consider increasing the cache timeouts and/or capacity limits
See the cache name there: Cache[ImmediateMembershipEntry] or "ImmediateMembershipEntry"
You can edit your grouper.cache.properties in UI config:
WAS
cache.name.ImmediateMembershipEntry.maxElementsInMemory = 10000
INCREASE
cache.name.ImmediateMembershipEntry.maxElementsInMemory = 100000
You might want to contact the grouper team to increase the default for that cache, and look in future releases to see if it is increased you can remove your override.
If the cache name contains periods, it will have an alias which must be used in the grouper.cache.properties file.
If your entry looks like this:
tomee;catalina.out;local;daemon;2020-12-08 16:41:49,505 [DefaultQuartzScheduler_Worker-1] WARN org.hibernate.cache.ehcache.internal.strategy.AbstractReadWriteEhcacheAccessStrategy- HHH020008: Cache[edu.internet2.middleware.grouper.pit.PITAttributeAssign] Key[edu.internet2.middleware.grouper.pit.PITAttributeAssign#1fea90dd500548639f3c1ab217ea6a43] Lockable[(null)]
Then you will need to look for that class name in the grouper.cache.base.properties file. Find the line which looks like this:
# name of cache referred in java
# {valueType: "string", required: true}
cache.name.pit_PITAttributeAssign.name = edu.internet2.middleware.grouper.pit.PITAttributeAssign
and then you can use that alias on your adjustments to the cache attributes as shown above. E.g.:
cache.name.pit_PITAttributeAssign.maxElementsInMemory = 10000