Spring Hibernate内存泄漏-BoundedConcurrentHashMap

请帮助解决Spring MVC应用程序中的内存问题

请查找我的事务配置

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
        destroy-method="close" p:driverClass="${jdbc.driverClassName}"
        p:jdbcUrl="${jdbc.databaseurl}${jdbc.encoding}" p:user="${jdbc.username}" p:password="${jdbc.password}"
        p:minPoolSize="${minPoolSize}" p:maxPoolSize="${maxPoolSize}"
        p:checkoutTimeout="${checkoutTimeout}" p:maxIdleTime="${maxIdleTime}"
        p:idleConnectionTestPeriod="${idleConnectionTestPeriod}" />

jdbc:

minPoolSize=15
initalPollSize=25
maxPoolSize=60
#Give up waiting for a connection after this many milliseconds
checkoutTimeout=18000
maxIdleTime=3600
idleConnectionTestPeriod=300
maxStatements=100
numHelperThreads=15
acquireIncrement=10

    <!--session factory -->
    <bean id="sessionFactory"
            class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
            <property name="dataSource" ref="dataSource" />

            <property name="hibernateProperties">
                <props>
                    <prop key="hibernate.dialect">${jdbc.dialect}</prop>
                    <prop key="hibernate.show_sql">false</prop>
                    <prop key="hibernate.generate_statistics">false</prop>
                </props>
            </property>
            <property name="entityInterceptor" ref="auditInterceptor">
            </property>

        </bean>

    <!-- transaction manager -->
    <bean id="transactionManager"
            class="org.springframework.orm.hibernate4.HibernateTransactionManager">
            <property name="sessionFactory" ref="sessionFactory" />
        </bean>



    <!-- transaction interveptor -->

    <bean id="transactionInterceptor"
            class="org.springframework.transaction.interceptor.TransactionInterceptor">
            <property name="transactionManager" ref="transactionManager" />

        </bean>

        <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
            <property name="beanNames">
                <list>
                    <value>*Service</value>
                </list>
            </property>
            <property name="interceptorNames">
                <list>
                    <value>exceptionInterceptor</value>
                    <value>transactionInterceptor</value>
                </list>
            </property>
        </bean>

在性能测试之后，我的内存没有被释放。因此，当分析堆转储时，得到了以下错误

org.apache.catalina.loader.WebappClassLoader@0x76000b8e8加载的org.hibernate.internal.SessionFactoryImpl的一个实例占用73446008 32.66%的字节。内存累积在org.apache.catalina.loader.WebappClassLoader@0x76000b8e8加载的org.hibernate.internal.util.collections.BoundedConcurrentHashMap$Segment[]的一个实例中

org.hibernate.internal.SessionFactoryImpl@0x7624efeb0 136 49,987,288 34.31% \org.hibernate.engine.query.spi.QueryPlanCache@0x7630b1250 32 47,674,176 32.72% .\org.hibernate.internal.util.collections.BoundedConcurrentHashMap@0x763259a58 48 47,554,336 32.64% ..\org.hibernate.internal.util.collections.BoundedConcurrentHashMap$段[32]@0x7632d1c60 144 47554288 32.64%

类名|浅堆|保留堆|百分比 org.hibernate.internal.util.collections.BoundedConcurrentHashMap$Segment[32]@0x7632d1c60 | 144 | 47554288 | 32.64% |-org.hibernate.internal.util.collections.BoundedConcurrentHashMap$Segment@0x76325ac88 | 48 | 1497688 | 1.03% |-org.hibernate.internal.util.collections.BoundedConcurrentHashMap$Segment@0x76325ac58 | 48 | 1631272 | 1.12% ||-org.hibernate.internal.util.collections.BoundedConcurrentHashMap$LIRSHashEntry@0x768fd54c0 | 56 | 880 | 0.00% || |-org.hibernate.engine.query.spi.sql.NativeSQLQuerySpecification@0x7671eb8e8 | 32 | 48 | 0.00% |||'-org.hibernate.engine.query.spi.sql.NativeSQLQueryReturn[0]@0x768ff16d0 | 16 | 16 | 0.00% || |-org.hibernate.engine.query.spi.NativeSQLQueryPlan@0x768ff1640 | 24 | 520 | 0.00%

|| |-java.lang.String@0x768ff1658从94316 | 24 | 256 | 0.00%中的列所在的表中选择不同的列

---

请帮助解决此问题

我们在堆中观察到一个查询

从statusFlg='Y'和deleteFlg='N'以及id=+autoGeneratedId的表中

当我们将查询更改为

从statusFlg='Y'和deleteFlg='N'以及id=：instanceid.setParameterinstanceId，autogenerateId的表中

会话对象正在被垃圾回收

---

有人能解释一下吗？我们在堆中观察到一个查询

从statusFlg='Y'和deleteFlg='N'以及id=+autoGeneratedId的表中

当我们将查询更改为

从statusFlg='Y'和deleteFlg='N'以及id=：instanceid.setParameterinstanceId，autogenerateId的表中

会话对象正在被垃圾回收

有人能解释一下吗