Frequent java.lang.OutOfMemoryError: Metaspace #26
Description
When using boot watch test I have a very frequent error:
clojure.lang.Compiler$CompilerException: java.lang.OutOfMemoryError: Metaspace, compiling:(ragtime/protocols.clj:3:1)
java.lang.OutOfMemoryError: Metaspace
...
clojure.core/load/fn core.clj: 5893
clojure.core/load/invokeStatic core.clj: 5892
clojure.core/load core.clj: 5876
...
clojure.core/load-one/invokeStatic core.clj: 5697
clojure.core/load-one core.clj: 5692
clojure.core/load-lib/fn core.clj: 5737
clojure.core/load-lib/invokeStatic core.clj: 5736
clojure.core/load-lib core.clj: 5717
...
clojure.core/apply/invokeStatic core.clj: 648
clojure.core/load-libs/invokeStatic core.clj: 5774
clojure.core/load-libs core.clj: 5758
...
clojure.core/apply/invokeStatic core.clj: 648
clojure.core/require/invokeStatic core.clj: 5796
clojure.core/require core.clj: 5796
I have not counted the time it takes but my feeling is every 20 mins of the tests running. I already have a pretty high configuration, which I gathered from the boot wiki (but might be off):
export BOOT_JVM_OPTIONS="-Xmx2g -client -XX:MaxMetaspaceSize=1g -XX:+TieredCompilation -XX:TieredStopAtLevel=1 -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -Xverify:none -XX:-OmitStackTraceInFastThrow"
What else can I tweak? I also briefly investigated if it was pod/pod-pool's fault in a way. It probably is, but I could not figure out way during my first attempt.