After moving from a SNAPSHOT build [1] to ER2 [2] I noticed the Caching Service going OOM during eviction stress test [3].

This failure is somewhat different from the ones we had before because it's caused by the insufficient heap. I tried to increase Xmx to 250 MB (from 180 MB) but the service was still behaving exactly the same way. The failure might be reproduced locally by running [4] (if you'd like to learn how to setup your local environment for JDG Online Services development, please have a look at [5]).

[1] https://github.com/infinispan/jdg/commit/9199b3a16333e41e1fd361eda05555b9c8173d08
[2] https://github.com/infinispan/jdg/tree/JDG_7.2.0.ER2
[3] https://github.com/jboss-container-images/jboss-dataservices-image/blob/dataservices-dev/functional-tests/src/test/java/org/infinispan/online/service/caching/CachingServiceTest.java#L78
[4] make stop-openshift start-openshift-with-catalog build-image push-image-to-local-openshift test-functional ADDITIONAL_ARGUMENTS="-Dtest=CachingServiceTest#should_put_entries_until_first_one_gets_evicted"
[5] https://docs.google.com/document/d/1gSGmytIW3u4IR1tXGmEekEa1AzhKfNvAPOAP0Fh32kQ/edit?usp=sharing