java - ejb bean 实例池 jboss EAP 6.1

Question

在我们的项目中，我们正在从 JBoss5 迁移到 Jboss EAP 6.1。当我查看要在 Jboss EAP 6.1 中使用的配置时，我偶然发现了以下内容:

<pools>
<bean-instance-pools>
<strict-max-pool name="slsb-strict-max-pool" max-pool-size="20" instance-acquisition-timeout="1" instance-acquisitiontimeout-unit="MILLISECONDS"/>
<strict-max-pool name="mdb-strict-max-pool" max-pool-size="20" instance-acquisition-timeout="1" instance-acquisitiontimeout-unit="MILLISECONDS"/>
</bean-instance-pools>
</pools>

我不清楚 max-pool-size 参数。这个限制是每个部署在 JBoss 上的无状态 EJB bean 20 个实例，还是无论无状态 EJB bean 的数量如何，池最多只能有 20 个实例。

Answer 1

我不同意eis。这是 Wildfly 8.2.1 的代码StatelessSessionComponent.java

public StatelessSessionComponent(final StatelessSessionComponentCreateService slsbComponentCreateService) {
    super(slsbComponentCreateService);

    StatelessObjectFactory<StatelessSessionComponentInstance> factory = new StatelessObjectFactory<StatelessSessionComponentInstance>() {
        @Override
        public StatelessSessionComponentInstance create() {
            return (StatelessSessionComponentInstance) createInstance();
        }

        @Override
        public void destroy(StatelessSessionComponentInstance obj) {
            obj.destroy();
        }
    };
    final PoolConfig poolConfig = slsbComponentCreateService.getPoolConfig();
    if (poolConfig == null) {
        ROOT_LOGGER.debug("Pooling is disabled for Stateless EJB " + slsbComponentCreateService.getComponentName());
        this.pool = null;
        this.poolName = null;
    } else {
        ROOT_LOGGER.debug("Using pool config " + poolConfig + " to create pool for Stateless EJB " + slsbComponentCreateService.getComponentName());
        this.pool = poolConfig.createPool(factory);
        this.poolName = poolConfig.getPoolName();
    }

    this.timeoutMethod = slsbComponentCreateService.getTimeoutMethod();
    this.weakAffinity = slsbComponentCreateService.getWeakAffinity();
}

正如我所见，池是非静态字段，是为每种类型的组件(ejb 类)创建的。