实现场景一：频率H1（5分钟）任务定时执行，但频率内任务执行所需时间超过频率时间段，出现频率内任务未执行完成，被下一次执行的任务中途中断的情况;
公司平台系统场景：定时任务 每5分钟可查询平台日志数据表记录大约为100万行，每1万行写入一个文件，即5分钟内需要生成100个文件，并存储到磁盘，但操作系统实际IO读写最高效率（假设）为 10个/1分钟，在当前任务在生成第50个文件时，下一间隔任务开始执行，并中断前一任务，导致未生成的50个文件数据丢失。
目 的：为解决 实现场景一【公司平台系统场景】 出现的任务在执行过程中被中断，出现数据丢失的问题和情况，采用quartz工作调度器进行任务调度，自定义多线程池去处理任务所需要做的工作。
方 案 一：springframework.scheduling.quartz工作调度器配置任务调度和自定义多线程池
配置文件：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
"
default-lazy-init="false">
<bean id="configholder"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
</bean>
<context:annotation-config />
<tx:annotation-driven proxy-target-class="true" />
<bean id="ruleService" class="com.hp.bon.omc.nms.core.threadPool.RuleService2"></bean>
<!-- 定时 -->
<bean id="ruleBean"
class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<property name="targetObject" ref="ruleService" />
<property name="targetMethod" value="updateRule" />
<property name="concurrent" value="false" />
</bean>
<bean id="rule" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
<property name="jobDetail" ref="ruleBean" />
<!-- 每30秒 执行 -->
<property name="cronExpression" value="0/30 * * * * ?"/>
</bean>
<!-- 定时 end -->
<bean id="startQuertz" lazy-init="false" autowire="no"
class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="jobDetails">
<list>
<ref bean="ruleBean" />
</list>
</property>
<property name="triggers">
<list>
<ref bean="rule" />
</list>
</property>
<!-- 启动时延期10秒开始任务 -->
<property name="startupDelay" value="10" />
</bean>
<!-- job end-->
<bean id="threadPoolTaskExecutor"
class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
<!-- 核心线程数，默认为5 -->
<property name="corePoolSize" value="5" />
<!-- 最大线程数，默认为Integer.MAX_VALUE -->
<property name="maxPoolSize" value="10" />
<!-- 队列最大长度，一般需要设置值>=notifyScheduledMainExecutor.maxNum；默认为Integer.MAX_VALUE -->
<property name="queueCapacity" value="300" />
<!-- 线程池维护线程所允许的空闲时间，默认为60s -->
<property name="keepAliveSeconds" value="360" />
<!-- 线程池对拒绝任务（无线程可用）的处理策略，目前只支持AbortPolicy、CallerRunsPolicy；默认为后者 -->
<property name="rejectedExecutionHandler">
<bean class="java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy" />
</property>
</bean>
<bean id="contextUtil" class="com.hp.bon.omc.nms.core.threadPool.ContextUtil"></bean>
</beans>
自定义com.hp.bon.omc.nms.core.threadPool.RuleService2任务类：
package com.hp.bon.omc.nms.core.threadPool;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.stereotype.Service;
@Service
public class RuleService2 {
private static final Logger LOG = LoggerFactory.getLogger(RuleService2.class);
public void updateRule() {
updateRuleThreadPoolTaskExecutor();
}
public void updateRuleThreadPoolTaskExecutor() {
LOG.info("任务已经调度，服务RuleService2已开始执行........");
ThreadPoolTaskExecutor threadPoolTaskExecutor = (ThreadPoolTaskExecutor) ContextUtil
.getBean("threadPoolTaskExecutor");
ThreadPoolExecutor executor = threadPoolTaskExecutor.getThreadPoolExecutor();
LOG.info("任务队列BlockingQueue存放任务大小="+executor.getQueue().size());
List<String> strList = new ArrayList<String>();
for (int i = 0; i < 30; i++) {
strList.add("test" + i);
}
for (int i = 0; i < strList.size(); i++) {
threadPoolTaskExecutor.execute(new Thread(new StartTaskThread2(strList.get(i))));
}
}
}
底层任务队列为BlockingQueue<Runnable> queue = new LinkedBlockingQueue<Runnable>(300)，
多线程池任务执行器ThreadPoolTaskExecutor在protected ExecutorService initializeExecutor初始化时，
定义了java.util.concurrent.ThreadPoolExecutor多线程池ThreadPoolExecutor
见 org.springframework.context-3.1.2.RELEASE.jar包org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor
类文件，包源代码为：package org.springframework.scheduling.concurrent;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.Callable;
import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.springframework.core.task.TaskRejectedException;
import org.springframework.scheduling.SchedulingTaskExecutor;
import org.springframework.util.Assert;
public class ThreadPoolTaskExecutor extends ExecutorConfigurationSupport
implements SchedulingTaskExecutor
{
private final Object poolSizeMonitor = new Object();
private int corePoolSize = 1;
private int maxPoolSize = 2147483647;
private int keepAliveSeconds = 60;
private boolean allowCoreThreadTimeOut = false;
private int queueCapacity = 2147483647;
private ThreadPoolExecutor threadPoolExecutor;
.....
protected ExecutorService initializeExecutor(ThreadFactory threadFactory,
RejectedExecutionHandler rejectedExecutionHandler)
{
BlockingQueue queue = createQueue(this.queueCapacity);
ThreadPoolExecutor executor = new ThreadPoolExecutor(
this.corePoolSize, this.maxPoolSize, this.keepAliveSeconds, TimeUnit.SECONDS,
queue, threadFactory, rejectedExecutionHandler);
if (this.allowCoreThreadTimeOut) {
executor.allowCoreThreadTimeOut(true);
}
this.threadPoolExecutor = executor;
return executor;
}
protected BlockingQueue<Runnable> createQueue(int queueCapacity)
{
if (queueCapacity > 0) {
return new LinkedBlockingQueue(queueCapacity);
}
return new SynchronousQueue();
}
public ThreadPoolExecutor getThreadPoolExecutor()
throws IllegalStateException
{
Assert.state(this.threadPoolExecutor != null, "ThreadPoolTaskExecutor not initialized");
return this.threadPoolExecutor;
}
.....
}
自定义线程处理类StartTaskThread2类：
package com.hp.bon.omc.nms.core.threadPool;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class StartTaskThread2 implements Runnable {
private static final Logger LOG = LoggerFactory.getLogger(StartTaskThread2.class);
private String st;
public StartTaskThread2(String st) {
this.st = st;
}
@Override
public void run() {
synchronized (this) {
try {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
LOG.info("Time:" + df.format(new Date()) + ",Thread Name:" + Thread.currentThread().getName()+ ",st="+st);
Thread.sleep(8*1000);
} catch (InterruptedException e) {e.printStackTrace();}
}
}
}
任务执行的线程每次Sleep 8秒。
工具类ContextUtil:
package com.hp.bon.omc.nms.core.threadPool;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
/**
* 取线程配置工具类,主动获取spring注入的DAO类的Bean
*/
public class ContextUtil implements ApplicationContextAware {
private static ApplicationContext context;
@Override
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
context = applicationContext;
}
public static ApplicationContext getContext() {
return context;
}
public static Object getBean(String beanName) {
return context.getBean(beanName);
}
}
运行结果：
<!-- 间隔30秒调度任务，5个线程每隔8秒从队列中并行取出5个任务，4个8秒一共完成20个 --> 2018-04-13 17:03:00.043 INFO [startQuertz_Worker-1] - 任务已经调度，服务RuleService2已开始执行........ 2018-04-13 17:03:00.044 INFO [startQuertz_Worker-1] - 任务队列BlockingQueue存放任务大小=0 2018-04-13 17:03:00.049 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:03:00...st=test0 2018-04-13 17:03:00.051 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:03:00...st=test1 2018-04-13 17:03:00.053 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:03:00...st=test3 2018-04-13 17:03:00.054 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:03:00...st=test4 2018-04-13 17:03:00.051 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:03:00...st=test2 2018-04-13 17:03:08.050 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:03:08...st=test5 2018-04-13 17:03:08.055 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:03:08...st=test6 2018-04-13 17:03:08.056 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:03:08...st=test7 2018-04-13 17:03:08.061 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:03:08...st=test8 2018-04-13 17:03:08.076 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:03:08...st=test9 2018-04-13 17:03:16.177 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:03:16...st=test10 2018-04-13 17:03:16.179 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:03:16...st=test11 2018-04-13 17:03:16.180 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:03:16...st=test12 2018-04-13 17:03:16.180 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:03:16...st=test13 2018-04-13 17:03:16.181 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:03:16...st=test14 2018-04-13 17:03:24.187 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:03:24...st=test15 2018-04-13 17:03:24.187 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:03:24...st=test16 2018-04-13 17:03:24.192 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:03:24...st=test18 2018-04-13 17:03:24.193 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:03:24...st=test17 2018-04-13 17:03:24.204 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:03:24...st=test19 .... <!-- 间隔30秒调度任务， 首先：由于上一频率任务队列中余下10个任务未执行完成，且无空闲、多余线程，任务在已经调度情况下处于等待..... 等待下个8秒线程释放（5个），释放的线程优先执行上一频率任务队列中余下10个任务中的5个; 再次等待下个8秒线程释放（5个），释放的线程执行上一频率任务队列中余下5个任务， 最终完成上一频率任务队列中所有的任务即30个; 其次：等待下个8秒线程释放5个线程，开始执行当前频率任务队列中30个任务中的10个 --> 2018-04-13 17:03:30.003 INFO [startQuertz_Worker-2] - 任务已经调度，服务RuleService2已开始执行........ 2018-04-13 17:03:30.003 INFO [startQuertz_Worker-2] - 任务队列BlockingQueue存放任务大小=10 2018-04-13 17:03:32.189 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:03:32...st=test20 2018-04-13 17:03:32.191 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:03:32...st=test21 2018-04-13 17:03:32.193 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:03:32...st=test22 2018-04-13 17:03:32.194 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:03:32...st=test23 2018-04-13 17:03:32.206 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:03:32...st=test24 2018-04-13 17:03:40.189 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:03:40...st=test25 2018-04-13 17:03:40.191 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:03:40...st=test26 2018-04-13 17:03:40.193 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:03:40...st=test27 2018-04-13 17:03:40.194 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:03:40...st=test28 2018-04-13 17:03:40.206 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:03:40...st=test29 2018-04-13 17:03:48.189 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:03:48...st=test0 2018-04-13 17:03:48.191 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:03:48...st=test1 2018-04-13 17:03:48.193 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:03:48...st=test2 2018-04-13 17:03:48.194 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:03:48...st=test3 2018-04-13 17:03:48.207 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:03:48...st=test4 2018-04-13 17:03:56.190 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:03:56...st=test5 2018-04-13 17:03:56.192 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:03:56...st=test6 2018-04-13 17:03:56.194 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:03:56...st=test7 2018-04-13 17:03:56.196 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:03:56...st=test8 2018-04-13 17:03:56.208 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:03:56...st=test9 ...中间系列间隔30秒调度任务即 startQuertz_Worker-3 至 startQuertz_Worker-9 工作调度线程产生的日志省去... <!-- 间隔30秒调度任务，Quertz工作调度线程达到最大数Worker-10，执行逻辑同上一致 首先：等待线程释放，释放的线程执行上一频率任务队列中余下任务，最终完成上一频率任务队列中所有的任务; 其次：等待线程释放，释放的线程执行当前频率任务队列中任务10个; --> 2018-04-13 17:07:30.003 INFO [startQuertz_Worker-10] - 任务已经调度，服务RuleService2已开始执行........ 2018-04-13 17:07:30.003 INFO [startQuertz_Worker-10] - 任务队列BlockingQueue存放任务大小=100 2018-04-13 17:07:32.264 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:07:32...st=test20 2018-04-13 17:07:32.269 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:07:32...st=test21 2018-04-13 17:07:32.305 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:07:32...st=test22 2018-04-13 17:07:32.306 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:07:32...st=test23 2018-04-13 17:07:32.308 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:07:32...st=test24 2018-04-13 17:07:40.266 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:07:40...st=test25 2018-04-13 17:07:40.270 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:07:40...st=test26 2018-04-13 17:07:40.306 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:07:40...st=test27 2018-04-13 17:07:40.307 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:07:40...st=test28 2018-04-13 17:07:40.309 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:07:40...st=test29 2018-04-13 17:07:48.278 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:07:48...st=test0 2018-04-13 17:07:48.281 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:07:48...st=test1 2018-04-13 17:07:48.310 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:07:48...st=test2 2018-04-13 17:07:48.315 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:07:48...st=test3 2018-04-13 17:07:48.316 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:07:48...st=test4 2018-04-13 17:07:56.281 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:07:56...st=test5 2018-04-13 17:07:56.282 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:07:56...st=test6 2018-04-13 17:07:56.316 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:07:56...st=test7 2018-04-13 17:07:56.317 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:07:56...st=test8 2018-04-13 17:07:56.318 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:07:56...st=test9 .... <!-- 间隔30秒调度任务，当任务队列BlockingQueue存放任务达到280时，线程池开始从maxPoolSize中再创建5个新线程处理任务。 首先：等待线程释放（10个），释放的线程执行上一频率任务队列中余下任务，最终完成上一频率任务队列中所有的任务; 其次：等待线程释放（10个），释放的线程执行当前频率任务队列中任务10个; --> 2018-04-13 17:15:30.002 INFO [startQuertz_Worker-6] - 任务已经调度，服务RuleService2已开始执行........ 2018-04-13 17:15:30.002 INFO [startQuertz_Worker-6] - 任务队列BlockingQueue存放任务大小=280 2018-04-13 17:15:30.004 INFO [threadPoolTaskExecutor-6] - Time:2018-04-13 17:15:30...st=test20 2018-04-13 17:15:30.005 INFO [startQuertz_Worker-6] - Time:2018-04-13 17:15:30...st=test25 2018-04-13 17:15:30.005 INFO [threadPoolTaskExecutor-9] - Time:2018-04-13 17:15:30...st=test23 2018-04-13 17:15:30.006 INFO [threadPoolTaskExecutor-10] - Time:2018-04-13 17:15:30...st=test24 2018-04-13 17:15:30.006 INFO [threadPoolTaskExecutor-7] - Time:2018-04-13 17:15:30...st=test21 2018-04-13 17:15:30.006 INFO [threadPoolTaskExecutor-8] - Time:2018-04-13 17:15:30...st=test22 2018-04-13 17:15:33.829 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:15:33...st=test20 2018-04-13 17:15:33.837 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:15:33...st=test21 2018-04-13 17:15:33.845 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:15:33...st=test22 2018-04-13 17:15:33.846 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:15:33...st=test23 2018-04-13 17:15:33.853 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:15:33...st=test24 2018-04-13 17:15:38.005 INFO [threadPoolTaskExecutor-6] - Time:2018-04-13 17:15:38...st=test25 2018-04-13 17:15:38.006 INFO [threadPoolTaskExecutor-9] - Time:2018-04-13 17:15:38...st=test26 2018-04-13 17:15:38.006 INFO [threadPoolTaskExecutor-7] - Time:2018-04-13 17:15:38...st=test27 2018-04-13 17:15:38.006 INFO [threadPoolTaskExecutor-10] - Time:2018-04-13 17:15:38...st=test28 2018-04-13 17:15:38.007 INFO [threadPoolTaskExecutor-8] - Time:2018-04-13 17:15:38...st=test29 2018-04-13 17:15:41.829 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:15:41...st=test0 2018-04-13 17:15:41.837 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:15:41...st=test1 2018-04-13 17:15:41.845 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:15:41...st=test2 2018-04-13 17:15:41.847 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:15:41...st=test3 2018-04-13 17:15:41.853 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:15:41...st=test4 2018-04-13 17:15:46.009 INFO [threadPoolTaskExecutor-7] - Time:2018-04-13 17:15:46...st=test5 2018-04-13 17:15:46.010 INFO [threadPoolTaskExecutor-8] - Time:2018-04-13 17:15:46...st=test6 2018-04-13 17:15:46.013 INFO [threadPoolTaskExecutor-6] - Time:2018-04-13 17:15:46...st=test7 2018-04-13 17:15:46.025 INFO [threadPoolTaskExecutor-9] - Time:2018-04-13 17:15:46...st=test8 2018-04-13 17:15:46.026 INFO [threadPoolTaskExecutor-10] -Time:2018-04-13 17:15:46...st=test9 2018-04-13 17:15:49.831 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:15:49...st=test10 2018-04-13 17:15:49.838 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:15:49...st=test11 2018-04-13 17:15:49.847 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:15:49...st=test12 2018-04-13 17:15:49.850 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:15:49...st=test13 2018-04-13 17:15:49.854 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:15:49...st=test14 2018-04-13 17:15:54.010 INFO [threadPoolTaskExecutor-7] - Time:2018-04-13 17:15:54...st=test15 2018-04-13 17:15:54.011 INFO [threadPoolTaskExecutor-8] - Time:2018-04-13 17:15:54...st=test16 2018-04-13 17:15:54.025 INFO [threadPoolTaskExecutor-6] - Time:2018-04-13 17:15:54...st=test17 2018-04-13 17:15:54.026 INFO [threadPoolTaskExecutor-10] - Time:2018-04-13 17:15:54...st=test18 2018-04-13 17:15:54.026 INFO [threadPoolTaskExecutor-9] - Time:2018-04-13 17:15:54...st=test19 2018-04-13 17:15:57.831 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:15:57...st=test20 2018-04-13 17:15:57.838 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:15:57...st=test21 2018-04-13 17:15:57.848 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:15:57...st=test22 2018-04-13 17:15:57.850 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:15:57...st=test23 2018-04-13 17:15:57.854 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:15:57...st=test24 <!-- 间隔30秒调度任务，由于线程池由5个变成10个线程，加强任务处理能力，务队列BlockingQueue存放任务由280又逐渐减少至69--> 2018-04-13 17:29:30.002 INFO [startQuertz_Worker-4] - 任务已经调度，服务RuleService2已开始执行........ 2018-04-13 17:29:30.002 INFO [startQuertz_Worker-4] - 任务队列BlockingQueue存放任务大小=69 2018-04-13 17:29:30.219 INFO [threadPoolTaskExecutor-7] - Time:2018-04-13 17:29:30...st=test21 2018-04-13 17:29:30.220 INFO [threadPoolTaskExecutor-8] - Time:2018-04-13 17:29:30...st=test22 2018-04-13 17:29:30.225 INFO [threadPoolTaskExecutor-6] - Time:2018-04-13 17:29:30...st=test23 2018-04-13 17:29:30.228 INFO [threadPoolTaskExecutor-10] - Time:2018-04-13 17:29:30...st=test24 2018-04-13 17:29:30.237 INFO [threadPoolTaskExecutor-9] - Time:2018-04-13 17:29:30...st=test25 2018-04-13 17:29:33.997 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:29:33...st=test26 2018-04-13 17:29:34.008 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:29:34...st=test27 2018-04-13 17:29:34.078 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:29:34...st=test28 2018-04-13 17:29:34.140 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:29:34...st=test29 2018-04-13 17:29:34.145 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:29:34...st=test0 2018-04-13 17:29:38.220 INFO [threadPoolTaskExecutor-7] - Time:2018-04-13 17:29:38...st=test2 2018-04-13 17:29:38.220 INFO [threadPoolTaskExecutor-8] - Time:2018-04-13 17:29:38...st=test1 2018-04-13 17:29:38.225 INFO [threadPoolTaskExecutor-6] - Time:2018-04-13 17:29:38...st=test3 2018-04-13 17:29:38.228 INFO [threadPoolTaskExecutor-10] - Time:2018-04-13 17:29:38...st=test4 2018-04-13 17:29:38.237 INFO [threadPoolTaskExecutor-9] - Time:2018-04-13 17:29:38...st=test5 2018-04-13 17:29:41.998 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:29:41...st=test6 2018-04-13 17:29:42.008 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:29:42...st=test7 2018-04-13 17:29:42.091 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:29:42...st=test8 2018-04-13 17:29:42.140 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:29:42...st=test9 2018-04-13 17:29:42.150 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:29:42...st=test10 2018-04-13 17:29:46.221 INFO [threadPoolTaskExecutor-8] - Time:2018-04-13 17:29:46...st=test11 2018-04-13 17:29:46.223 INFO [threadPoolTaskExecutor-7] - Time:2018-04-13 17:29:46...st=test12 2018-04-13 17:29:46.226 INFO [threadPoolTaskExecutor-6] - Time:2018-04-13 17:29:46...st=test13 2018-04-13 17:29:46.230 INFO [threadPoolTaskExecutor-10] - Time:2018-04-13 17:29:46...st=test14 2018-04-13 17:29:46.238 INFO [threadPoolTaskExecutor-9] - Time:2018-04-13 17:29:46...st=test15 2018-04-13 17:29:50.000 INFO [threadPoolTaskExecutor-3] - Time:2018-04-13 17:29:50...st=test16 2018-04-13 17:29:50.013 INFO [threadPoolTaskExecutor-1] - Time:2018-04-13 17:29:50...st=test17 2018-04-13 17:29:50.104 INFO [threadPoolTaskExecutor-2] - Time:2018-04-13 17:29:50...st=test18 2018-04-13 17:29:50.143 INFO [threadPoolTaskExecutor-4] - Time:2018-04-13 17:29:50...st=test19 2018-04-13 17:29:50.155 INFO [threadPoolTaskExecutor-5] - Time:2018-04-13 17:29:50...st=test20 2018-04-13 17:29:54.223 INFO [threadPoolTaskExecutor-8] - Time:2018-04-13 17:29:54...st=test21 2018-04-13 17:29:54.224 INFO [threadPoolTaskExecutor-7] - Time:2018-04-13 17:29:54...st=test22 2018-04-13 17:29:54.227 INFO [threadPoolTaskExecutor-6] - Time:2018-04-13 17:29:54...st=test23 2018-04-13 17:29:54.231 INFO [threadPoolTaskExecutor-10] - Time:2018-04-13 17:29:54...st=test24 2018-04-13 17:29:54.239 INFO [threadPoolTaskExecutor-9] - Time:2018-04-13 17:29:54...st=test25结 论：频率内任务执行所需时间超过频率时间段，任务不会被下一次执行的任务中途中断，能正常完成所有的任务;但第二个30秒时间节点（即下一频率）调度任务时，由于无空闲线程，出现调度任务内的线程大量等待，直至有线程释放时才开始处理队列内的任务，导致调度任务执行的工作廷迟。