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

    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.

  • #2
    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.

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