Is there a bug in hiveserver2 metastore caused hold huge objects

[Meng QingPing]

I run hiveserver2 with metastore in mysql. The hiveserver2 OOM and the heap
dump show huge objects hold by "org.datanucleus.api.jdo.
JDOPersistenceManagerFactory" as attached. It seems not release
org.datanucleus.api.jdo.JDOPersistenceManager. Hive version is 0.13.

Thanks,
Jack