Spring Hibernate java.lang.OutOfMemoryError: GC overhead limit exceeded

[testtesttest]

Hi there,

I am facing issue in my web application which uses Spring + Hibernate .

I am randomly getting error

java.lang.OutOfMemoryError: GC overhead limit exceeded

when web application is running in tomcat

I tried to get Heap dump and did analysis of heap dump using Eclipse MAT

Here are my findings

Object org.hibernate.impl.SessionFactoryObjectFactory holds 86% of the memory , this object’s Fashhashmap instance holds more than 100000 Hashmaps.
Inside the every Hashmap there is an instance of org.hibernate.impl.SessionFactoryImpl ,
It seems org.hibernate.impl.SessionFactoryImpl is loaded several times and stored inside org.hibernate.impl.SessionFactoryObjectFactory ‘s Fashhashmap

Can somebody help me in finding root cause for this issue and suggest some solution to fix this.

[Marten Deinum]

Judging from that you are either reconstructing sessionfactories yourself somewhere or yuo are have improper transaction management or do openSession in your code instead of getCurrentSession.