<hibernate-configuration>
    <session-factory>
           <property name="hibernate.c3p0.min_size">5</property>
        <property name="hibernate.c3p0.max_size">20</property>
        <property name="hibernate.c3p0.timeout">300</property>
        <property name="hibernate.c3p0.max_statements">0</property>
        <property name="hibernate.c3p0.acquire_increment">2</property>
        <property name="hibernate.c3p0.validate">false</property>
        <property name="show_sql">false</property>
        <property name="format_sql">false</property>
        <property name="use_sql_comments">false</property>
        <property name="connection.pool_size">1</property>
        <property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
         <mapping resource="CommonSessionData.hbm.xml"/>
<propertyname="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</property>
<mapping resource="CommonSessionData.hbm.xml"/>
</session-factory>
</hibernate-configuration>

// Mapping for CommonSessionData

<hibernate-mapping>
<class
        name="com.ortiva.eventlistener.mappings.CommonSessionData"
        table="Sessions">
     <cache usage="read-write"/>
   <!--Other parameters have been mapped to table column-->
</class>
</hibernate-mapping>

//Config param for EHCACHE

<ehcache>
    <diskStore path="java.io.tmpdir"/>
    <defaultCache
        maxElementsInMemory="10000"
        eternal="false"
        timeToIdleSeconds="120"
        timeToLiveSeconds="120"
        overflowToDisk="true"
        diskPersistent="false"
        diskExpiryThreadIntervalSeconds="120"
        memoryStoreEvictionPolicy="LRU"
        />
    <cache name="com.ortiva.eventlistener.mappings.CommonSessionData"
        maxElementsInMemory="1000"
        eternal="true"
        overflowToDisk="false"
        />
    <cache name="com.ortiva.eventlistener.mappings.GatewayEventData"
        maxElementsInMemory="2000"
        eternal="true"
        overflowToDisk="false"
        />
</ehcache>

We have a java code that opens a Session from SessionFactory and Searches database if CommonSessionData object exists by comparing a varchar field which is primary field.  If it finds then updates with some values otherwise inserts that record into database.
Now I am facing problem when I am running the code with many files from where we are creating CommonSessionData objects.Input files starts queuing in the input directory.So please help me . [b]Its an urgent as it is a part of the project that I am currently doing.[/b]