Disappointment of insert / update rates using Hibernate and HSQL second level cache

I need to be able to write to my database at a speed of over 5,000 records per second. At the moment, I can not manage more than 10% of this number.

I use Spring to configure my data source (HSQL) and Hibernate as a Jpa provider.

My objects are all flat (there are no complex object trees), and I used Hibernate second level caching (EhCache) using the Concurrency strategy set in ConcurrencyStrategy.READ-WRITE.

Here is my Spring Context for my beans data source:

 <bean id="commandsTransactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"
p:entityManagerFactory-ref="commandEmf"/>

<tx:annotation-driven transaction-manager="commandsTransactionManager" />

<!-- Commmands Data Source Configuration -->
<bean id="commandsDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="${jdbc-commands.driverClassName}"/>
    <property name="url" value="${jdbc-commands.url}"/>
    <property name="username" value="${jdbc-commands.username}"/>
    <property name="password" value="${jdbc-commands.password}"/>
    <property name="initialSize" value="10"/>
    <property name="maxActive" value="100"/>
    <property name="maxWait" value="-1"/>
</bean>

 <bean name="lazyConnectionDataSourceProxy" class="org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy">
    <property name="targetDataSource" ref="commandsDataSource" />
</bean>

<!-- Commands Container Managed JPA Entity Manager Factory -->
<bean id="commandEmf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="commandsDataSource"/>
    <property name="persistenceUnitName" value="commands"/>
    <property name="jpaPropertyMap" ref="jpaPropertyMap"/>
    <property name="jpaVendorAdapter">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"
                    p:showSql="false"  p:generateDdl="true" p:database="HSQL" p:databasePlatform="org.hibernate.dialect.HSQLDialect">
            </bean>
    </property>
</bean>

<util:map id="jpaPropertyMap" key-type="java.lang.String" value-type="java.lang.Object">
     <entry key="hibernate.hbm2ddl.auto" value="${jdbc-commands.ddlmode}" />
      <entry key="hibernate.cache.use_second_level_cache" value="true" />
      <entry key="hibernate.cache.region.factory_class" value="net.sf.ehcache.hibernate.SingletonEhCacheRegionFactory"/>
</util:map>

. "AbstractAnnotatedAggregateRoot" - "Axon Framework" , Aggregate Repository. - , Jpa .

@Entity
@Table(name = "users")
@Cache(region="usersCache", usage= CacheConcurrencyStrategy.READ_WRITE)
public class User extends AbstractAnnotatedAggregateRoot {

    private static final long serialVersionUID = -6536766172448063298L;

    private String username;

    private String password;

    private Integer subscription;

    private String firstName;

    private String lastName;

    private Calendar subscriptionDate;

    private Date lastAccessTime;

    public User(){}

    public User(StringAggregateIdentifier email){
        super(email);
        registerEvent(new UserCreatedEvent(email.asString()));
    }

    @Column(unique = true)
    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
        registerEvent(new UserNameUpdatedEvent(this.username));
    }

    @Column(nullable = false)
    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
        registerEvent(new UserPasswordUpdatedEvent(this.password));
    }

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
        registerEvent(new UserFirstNameUpdatedEvent(this.firstName));
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
        registerEvent(new UserLastNameUpdatedEvent(this.lastName));
    }

    public String getEmail() {
        return getIdentifier().asString();
    }

    @Temporal(TemporalType.DATE)
    public Calendar getSubscriptionDate() {
        return subscriptionDate;
    }

    public void setSubscriptionDate(Calendar subscriptionDate) {
        this.subscriptionDate = subscriptionDate;
        registerEvent(new UserSubscriptionDateUpdatedEvent(this.subscriptionDate));
    }

    @Temporal(TemporalType.TIMESTAMP)
    public Date getLastAccessTime() {
        return lastAccessTime;
    }

    public void setLastAccessTime(Date lastAccessTime) {
        this.lastAccessTime = lastAccessTime;
        registerEvent(new UserLastAccessTimeUpdatedEvent(this.lastAccessTime));

    }

    public Integer getSubscription() {
        return subscription;
    }

    public void setSubscription(Integer subscription) {
        this.subscription = subscription;
        registerEvent(new UserSubscriptionUpdatedEvent(this.subscription));
    }

}

, EhCache.xml:

  <cache name="usersCache" maxElementsInMemory="10000"
  maxElementsOnDisk="10000" eternal="false" overflowToDisk="false"
  diskSpoolBufferSizeMB="20" timeToIdleSeconds="300"
  timeToLiveSeconds="600" memoryStoreEvictionPolicy="LFU"
  statistics = "true">
  </cache>

Axon , . , Spring PlatformTransactionManager.

Dispatch , 5000 . , . , , // , , , INSERT, , HYSQL H2.

.