JBoss 中配置 EJB 有狀態 Bean 鈍化時間

在 JBoss 中使用 EJB 有狀態 Bean 時，可透過修改 standardjboss.xml 文件配置鈍化時間：

<container-configuration>
  <container-name>Standard Stateful SessionBean</container-name>
  <call-logging>false</call-logging>
  <invoker-proxy-binding-name>stateful-rmi-invoker</invoker-proxy-binding-name>
  <container-interceptors>
    <interceptor>org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor</interceptor>
    <interceptor>org.jboss.ejb.plugins.LogInterceptor</interceptor>
    <!-- CMT -->
    <interceptor transaction="Container">org.jboss.ejb.plugins.TxInterceptorCMT</interceptor>
    <interceptor transaction="Container">org.jboss.ejb.plugins.CallValidationInterceptor</interceptor>
    <interceptor transaction="Container">org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor</interceptor>
    <!-- BMT -->
    <interceptor transaction="Bean">org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor</interceptor>
    <interceptor transaction="Bean">org.jboss.ejb.plugins.TxInterceptorBMT</interceptor>
    <interceptor transaction="Bean">org.jboss.ejb.plugins.CallValidationInterceptor</interceptor>
    <interceptor>org.jboss.resource.connectionmanager.CachedConnectionInterceptor</interceptor>
    <interceptor>org.jboss.ejb.plugins.SecurityInterceptor</interceptor>
  </container-interceptors>
  <instance-cache>org.jboss.ejb.plugins.StatefulSessionInstanceCache</instance-cache>
  <persistence-manager>org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager</persistence-manager>
  <container-cache-conf>
    <cache-policy>org.jboss.ejb.plugins.LRUStatefulContextCachePolicy</cache-policy>
    <cache-policy-conf>
      <min-capacity>50</min-capacity>
      <max-capacity>1000000</max-capacity>
      <remover-period>1800</remover-period>
      <max-bean-life>1800</max-bean-life>
      <overager-period>300</overager-period>
      <max-bean-age>600</max-bean-age> <!-- 預設 600 秒，可修改為所需值 -->
      <resizer-period>400</resizer-period>
      <max-cache-miss-period>60</max-cache-miss-period>
      <min-cache-miss-period>1</min-cache-miss-period>
      <cache-load-factor>0.75</cache-load-factor>
    </cache-policy-conf>
  </container-cache-conf>
  <container-pool-conf>
    <MaximumSize>100</MaximumSize>
  </container-pool-conf>
</container-configuration>

關鍵參數 max-bean-age 預設 600 秒，即 Bean 在緩存中最大存活時間，超過將被鈍化。根據應用需求調整此值即可。