设置/配置 EJB 计时器服务的数据源 [英] Set/configure the EJB Timer Service’s DataSource
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问题描述
我正在尝试在我的应用程序中使用 EJB 3.1 中的计时器服务.
@Stateless@LocalBean公共类 StatelessTimerSessionBean {@Schedule(minute = "*", second = "0", dayOfMonth = "*", month = "*", year = "*", hour = "9-17", dayOfWeek = "Mon-Fri")公共无效我的定时器(){System.out.println("定时器事件:" + new Date());}}
<块引用>
.. 将 EJB 定时器服务的定时器数据源设置设置为有效的 JDBC 资源.."
来自
- 启动您的 GlassFish 服务器管理控制台:通常是
http://localhost:4848
- 在您的左侧导航到 [Configurations] > [server-config] > [EJB Container]
- 然后点击顶部的TAB[EJB Timer Service]
- 然后填写计时器数据源:使用您的 JDBC 资源,例如.[mysql-pu].( 注意: 默认为
jdbc/__TimerPool
) - 重启服务器
3.结果
<代码>...信息:[TimerBeanContainer] 创建的 TimerBeanContainer:TimerBean信息:EJB5181:EJB TimerBean 的可移植 JNDI 名称:[java:global/ejb-timer-service-app/TimerBean, java:global/ejb-timer-service-app/TimerBean!com.sun.ejb.containers.TimerLocal]信息:WEB0671:在 [/ejb-timer-service-app] 加载应用程序 [ejb-timer-service-app]信息:EJB5109:EJB 定时器服务为数据源成功启动 [mysql-pu]信息:将 DBReadBeforeTimeout 设置为 false信息:==>正在恢复定时器...信息:此服务器没有 EJB 计时器信息:<== ... 计时器已恢复....
4.还是破?TimerService 刚刚停止工作(它曾经工作过)?
在充满保存时部署"的一天之后,这发生在我身上.TimerService 突然不可用.
严重:加载应用程序时出现异常严重:上下文/ejb-timer-service-app 的取消部署失败警告:无法部署或加载 EJBTimerService:org.glassfish.deployment.common.DeploymentException:链接 ejb-timer-service-app 的安全策略时出错——模块状态不一致
5.有用的链接
I'm trying to use the Timer Service in EJB 3.1 in my app.
@Stateless
@LocalBean
public class StatelessTimerSessionBean {
@Schedule(minute = "*", second = "0", dayOfMonth = "*", month = "*", year = "*", hour = "9-17", dayOfWeek = "Mon-Fri")
public void myTimer() {
System.out.println("Timer event: " + new Date());
}
}
".. set the EJB Timer Service’s Timer DataSource setting to a valid JDBC resource.."
from EJB Timer Service
I cannot figure out how to configure the Timer Datasource correctly?
The error I get when deploying is:
SEVERE: Exception while invoking class org.glassfish.ejb.startup.EjbApplication start method
java.lang.RuntimeException: EJB Timer Service is not available
Running: glassfish-3.1.2.2
解决方案
1. Example Database Setup
I use MySQL for my database.
Create the table
EJB__TIMER__TBL
from{GF_HOME}/glassfish/lib/install/databases/ejbtimer_{DB_ENGINE}.sql
DB_ENGINE = e.g MySQL:
CREATE TABLE EJB__TIMER__TBL (
`CREATIONTIMERAW` BIGINT NOT NULL,
`BLOB` BLOB,
`TIMERID` VARCHAR(255) NOT NULL,
`CONTAINERID` BIGINT NOT NULL,
`OWNERID` VARCHAR(255) NULL,
`STATE` INTEGER NOT NULL,
`PKHASHCODE` INTEGER NOT NULL,
`INTERVALDURATION` BIGINT NOT NULL,
`INITIALEXPIRATIONRAW` BIGINT NOT NULL,
`LASTEXPIRATIONRAW` BIGINT NOT NULL,
`SCHEDULE` VARCHAR(255) NULL,
`APPLICATIONID` BIGINT NOT NULL,
CONSTRAINT `PK_EJB__TIMER__TBL` PRIMARY KEY (`TIMERID`)
);
2. Server Configuration
- Start your GlassFish server admin console: usually
http://localhost:4848
- On your left navigate to [Configurations] > [server-config] > [EJB Container]
- Then click the TAB up top [EJB Timer Service]
- Then fill out Timer Datasource: with your JDBC Resource eg. [mysql-pu]. ( Note: Defaults to
jdbc/__TimerPool
) - Restart the Server
3. The Result
...
INFO: [TimerBeanContainer] Created TimerBeanContainer: TimerBean
INFO: EJB5181:Portable JNDI names for EJB TimerBean: [java:global/ejb-timer-service-app/TimerBean, java:global/ejb-timer-service-app/TimerBean!com.sun.ejb.containers.TimerLocal]
INFO: WEB0671: Loading application [ejb-timer-service-app] at [/ejb-timer-service-app]
INFO: EJB5109:EJB Timer Service started successfully for data source [mysql-pu]
INFO: Setting DBReadBeforeTimeout to false
INFO: ==> Restoring Timers ...
INFO: There are no EJB Timers owned by this server
INFO: <== ... Timers Restored.
...
4. Still Broken? TimerService just stopped working (it used to work)?
So this happened to me after a day full of "deploy on save". The TimerService was unavailable all of a sudden.
Severe: Exception while loading the app
Severe: Undeployment failed for context /ejb-timer-service-app
Warning: Cannot deploy or load EJBTimerService: org.glassfish.deployment.common.DeploymentException: Error in linking security policy for ejb-timer-service-app -- Inconsistent Module State
5. Useful Links
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