Question

在我们的项目中，我们正在从JBoss5迁移到Jboss EAP 6.1。当我在Jboss EAP 6.1中使用配置时，我偶然发现：

<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。这个限制在JBoss或池上部署的每个无状态EJB bean的20个实例最多只能有20个实例，而不管无状态EJB bean的数量。

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();
}

我认为pool是非静态字段，是为每种类型的组件（ejb类）创建的。

Answer 2

Red Hat documentation说

bean池的最大大小。

此外，如果您转到EAP的管理面板并转到个人资料 - ＆gt;容器 - ＆gt; EJB3 - ＆gt; Bean Pools - ＆gt; “需要帮忙？”它说

最大池大小：池可以使用的最大Bean实例数保持在给定的时间点

我认为这意味着游泳池最多只会有20个实例。

编辑：回想起来，answer by Sergey Kosarev说每个实例似乎足够令人信服，你应该相信它。

ejb bean实例池jboss EAP 6.1

2 个答案: