问题描述

quartz重复执行的问题

最近用到quartz做集群，需求每隔一段时间执行一次任务。
发现在配置较短的时间间隔，比如15秒钟执行一次时，会出现，服务器启动会有多个线程（不等，有时候2个，多的时候4个，quartz线程数目用的默认的10个）重复执行该任务。
控制台信息如下：

而当我配置成1min执行一次的时候，就没有问题，不会重发执行。
主要的配置文件如下，求解，感谢感谢。

<bean id="autoRepeatRequestTask"
        class="org.springframework.scheduling.quartz.JobDetailFactoryBean">
        <property name="jobClass">
            <value>com..job.AutoRequestRepeatJob</value>
        </property>
        <property name="durability" value="true" />
        <property name="requestsRecovery" value="true" />
    </bean>
    <!-- 定义触发时间 -->
    <bean id="autoRepeatRequestDoTime"
        class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
        <property name="jobDetail">
            <ref bean="autoRepeatRequestTask" />
        </property>
        <!-- cron表达式 -->
        <property name="cronExpression">
            <value>0 * * * * ?</value>
            <!--每分钟执行一次 -->
        </property>
    </bean>
    <!-- 总管理类 如果将lazy-init='false'那么容器启动就会执行调度程序 -->
    <bean id="startQuartz" lazy-init="false" autowire="no"
        class="org.springframework.scheduling.quartz.SchedulerFactoryBean"
        destroy-method="destroy">
        <property name="configLocation" value="classpath:quartz.properties" />
        <property name="triggers">
            <list>
                <ref bean="autoRepeatRequestDoTime" />
            </list>
        </property>
        <property name="startupDelay" value="10" />
        <property name="applicationContextSchedulerContextKey" value="applicationContextKey" />
    </bean>

执行的任务类：

@PersistJobDataAfterExecution
@DisallowConcurrentExecution // 不允许并发执行
public class AutoRequestRepeatJob extends QuartzJobBean {
    private static final Logger LOGGER = LoggerFactory.getLogger(AutoRequestRepeatJob.class);

    @Override
    protected void executeInternal(JobExecutionContext context) throws JobExecutionException {
        System.out.println(Thread.currentThread().getName()+"------初始化了"+DateTimeUtils.getNowHHmmss());
        RequestRepeatService requestRepeatService = getApplicationContext(context).getBean(RequestRepeatService.class);
        requestRepeatService.autoRepeatRequest();

    }

    private ApplicationContext getApplicationContext(final JobExecutionContext jobexecutioncontext) {
        try {
            return (ApplicationContext) jobexecutioncontext.getScheduler().getContext().get("applicationContextKey");
        } catch (SchedulerException e) {
            LOGGER.error("jobexecutioncontext.getScheduler().getContext() error!", e);
            throw new RuntimeException(e);
        }
    }

}

解决方案

quartz集群配置

 #==============================================================
#Configure Main Scheduler Properties
#==============================================================
org.quartz.scheduler.instanceId=AUTO
org.quartz.scheduler.instanceName=AUTO_REPEAT_REQUEST
#============================================================================
# Configure JobStore
#============================================================================
org.quartz.jobStore.isClustered=true
org.quartz.jobStore.clusterCheckinInterval=15000
org.quartz.jobStore.misfireThreshold = 60000
org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate
org.quartz.jobStore.tablePrefix = QRTZ_
org.quartz.jobStore.useProperties = false
org.quartz.jobStore.dataSource = myDS
#============================================================================
# Configure ThreadPool
#============================================================================
org.quartz.threadPool.class=org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount=10
org.quartz.threadPool.threadPriority=5
org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread = true
#============================================================================
# Configure Datasources
#============================================================================

解决方案二：

或者是因为我的具体的任务写的有问题，里面用到了线程池。因为开辟的线程池没有释放？ 求解求解

  private static ListeningExecutorService FixedExecutorService = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(FIXED_THREAD_NUM));