quartz-scheduler的集群化配置
由于集群只能工作在JDBC-Jobstore(JobStoreTX或者JobStoreCMT)方式下。需要先准备好quartz的数据库环境。
1.在 quartz 的官网上(http://quartz-scheduler.org/ )下载quartz框架的最新版本(目前是1.8.6),下载quartz-1.8.6.tar.gz文件。
2.解压压缩文件quartz-1.8.6.tar.gz,在quartz-1.8.6\docs\dbTables\ 找到文件tables_oracle.sql(以oracle为例),在数据库中执行一遍,就可以看到quartz 框架
集群管理所需的表。
3.配置quartz.properties的quartz属性文件。
#============================================================================ # Configure Main Scheduler Properties #============================================================================ org.quartz.scheduler.instanceName = Scheduler org.quartz.scheduler.instanceId = AUTO #============================================================================ # Configure ThreadPool #============================================================================ org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool org.quartz.threadPool.threadCount = 10 org.quartz.threadPool.threadPriority = 5 #============================================================== #Configure JobStore 集群配置 #============================================================== org.quartz.jobStore.misfireThreshold = 60000 org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.oracle.OracleDelegate org.quartz.jobStore.tablePrefix = QRTZ_ org.quartz.jobStore.dataSource = myDS
org.quartz.jobStore.isClustered = true org.quartz.jobStore.clusterCheckinInterval = 20000 #============================================================== #Non-Managed Configure Datasource 集群数据库配置 #============================================================== org.quartz.dataSource.myDS.driver = oracle.jdbc.driver.OracleDriver org.quartz.dataSource.myDS.URL = jdbc:oracle:thin:@127.0.0.1/orcl org.quartz.dataSource.myDS.user = username org.quartz.dataSource.myDS.password = password org.quartz.dataSource.myDS.maxConnections = 10 |
修改其中数据库相关配置为你自己用的。
org.quartz.jobStore.isClustered = true启用集群的配置项。
4. 定义一个作业类(Job)。
import java.util.Date; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.quartz.Job; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; public class SimpleJob implements Job { private static Log _log = LogFactory.getLog(SimpleJob.class); public SimpleJob() { } public void execute(JobExecutionContext context) throws JobExecutionException { // This job simply prints out its job name and the // date and time that it is running String jobName = context.getJobDetail().getFullName(); _log.info("SimpleJob says: " + jobName + " executing at " + new Date()); } } |
5.定义作业的执行类。
import java.util.Date; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.quartz.CronTrigger; import org.quartz.JobDetail; import org.quartz.Scheduler; import org.quartz.SchedulerFactory; import org.quartz.SchedulerMetaData; import org.quartz.impl.StdSchedulerFactory; public class JdbcJobStoreExample { public void runCluster()throws Exception{ Log log = LogFactory.getLog(JdbcJobStoreExample.class); log.info("------- Initializing -------------------"); // First we must get a reference to a scheduler String propName = "conf/quartz_cluster.properties"; SchedulerFactory sf = new StdSchedulerFactory(propName); Scheduler sched = sf.getScheduler(); log.info("------- Initialization Complete --------"); log.info("------- Scheduling Jobs ----------------"); log.info("------- Starting Scheduler ----------------"); // All of the jobs have been added to the scheduler, but none of the // jobs // will run until the scheduler has been started sched.start(); log.info("------- Started Scheduler -----------------"); log.info("------- Waiting five minutes... ------------"); try { // wait five minutes to show jobs Thread.sleep(300L * 1000L); // executing... } catch (Exception e) { } log.info("------- Shutting Down ---------------------"); sched.shutdown(true); log.info("------- Shutdown Complete -----------------"); SchedulerMetaData metaData = sched.getMetaData(); log.info("Executed " + metaData.getNumberOfJobsExecuted() + " jobs."); } public void run() throws Exception { Log log = LogFactory.getLog(JdbcJobStoreExample.class); log.info("------- Initializing -------------------"); // First we must get a reference to a scheduler String propName = "conf/quartz_cluster.properties"; SchedulerFactory sf = new StdSchedulerFactory(propName); Scheduler sched = sf.getScheduler(); log.info("------- Initialization Complete --------"); log.info("------- Scheduling Jobs ----------------"); // jobs can be scheduled before sched.start() has been called // job 1 will run every 20 seconds JobDetail job = new JobDetail("job1", "group1", SimpleJob.class); CronTrigger trigger = new CronTrigger("trigger1", "group1", "job1", "group1", "0/20 * * * * ?"); sched.addJob(job, true); Date ft = sched.scheduleJob(trigger); log.info(job.getFullName() + " has been scheduled to run at: " + ft + " and repeat based on expression: " + trigger.getCronExpression()); // job 2 will run every other minute (at 15 seconds past the minute) job = new JobDetail("job2", "group1", SimpleJob.class); trigger = new CronTrigger("trigger2", "group1", "job2", "group1", "15 0/2 * * * ?"); sched.addJob(job, true); ft = sched.scheduleJob(trigger); log.info(job.getFullName() + " has been scheduled to run at: " + ft + " and repeat based on expression: " + trigger.getCronExpression()); // job 3 will run every other minute but only between 8am and 5pm job = new JobDetail("job3", "group1", SimpleJob.class); trigger = new CronTrigger("trigger3", "group1", "job3", "group1", "0 0/2 8-17 * * ?"); sched.addJob(job, true); ft = sched.scheduleJob(trigger); log.info(job.getFullName() + " has been scheduled to run at: " + ft + " and repeat based on expression: " + trigger.getCronExpression()); // job 4 will run every three minutes but only between 5pm and 11pm job = new JobDetail("job4", "group1", SimpleJob.class); trigger = new CronTrigger("trigger4", "group1", "job4", "group1", "0 0/3 17-23 * * ?"); sched.addJob(job, true); ft = sched.scheduleJob(trigger); log.info(job.getFullName() + " has been scheduled to run at: " + ft + " and repeat based on expression: " + trigger.getCronExpression()); // job 5 will run at 10am on the 1st and 15th days of the month job = new JobDetail("job5", "group1", SimpleJob.class); trigger = new CronTrigger("trigger5", "group1", "job5", "group1", "0 0 10am 1,15 * ?"); sched.addJob(job, true); ft = sched.scheduleJob(trigger); log.info(job.getFullName() + " has been scheduled to run at: " + ft + " and repeat based on expression: " + trigger.getCronExpression()); // job 6 will run every 30 seconds but only on Weekdays (Monday through // Friday) job = new JobDetail("job6", "group1", SimpleJob.class); trigger = new CronTrigger("trigger6", "group1", "job6", "group1", "0,30 * * ? * MON-FRI"); sched.addJob(job, true); ft = sched.scheduleJob(trigger); log.info(job.getFullName() + " has been scheduled to run at: " + ft + " and repeat based on expression: " + trigger.getCronExpression()); // job 7 will run every 30 seconds but only on Weekends (Saturday and // Sunday) job = new JobDetail("job7", "group1", SimpleJob.class); trigger = new CronTrigger("trigger7", "group1", "job7", "group1", "0,30 * * ? * SAT,SUN"); sched.addJob(job, true); ft = sched.scheduleJob(trigger); log.info(job.getFullName() + " has been scheduled to run at: " + ft + " and repeat based on expression: " + trigger.getCronExpression());
log.info("------- Starting Scheduler ----------------");
// All of the jobs have been added to the scheduler, but none of the // jobs // will run until the scheduler has been started sched.start();
log.info("------- Started Scheduler -----------------");
log.info("------- Waiting five minutes... ------------"); try { // wait five minutes to show jobs Thread.sleep(300L * 1000L); // executing... } catch (Exception e) { }
log.info("------- Shutting Down ---------------------");
sched.shutdown(true);
log.info("------- Shutdown Complete -----------------");
SchedulerMetaData metaData = sched.getMetaData(); log.info("Executed " + metaData.getNumberOfJobsExecuted() + " jobs."); }
/** * @param args */ public static void main(String[] args) { JdbcJobStoreExample test = new JdbcJobStoreExample(); try { // test.run(); test. runCluster (); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println("ok...."); } } |
在main()方法调用 test.run();方法会把作业调度信息持久化到数据库中。
test. runCluster ()是集群启动的方法,在启动集群方法前,首先要先执行一遍JdbcJobStoreExample类的run()方法,
因为我在run()方法中添加作业的调度信息,运行后quartz会把调度信息持久
化到数据库,也可以直接在数据库中配置作业的调度信息(由于本人比较懒,就这样偷懒了一下)。
6.程序中用到的jar文件如下:
commons-dbcp-1.3.jar
commons-logging-1.1.jar
commons-pool-1.5.4.jar
jta-1.1.jar
junit-4.5.jar
log4j-1.2.14.jar
oracle-driver-14.jar
quartz-all-1.8.5.jar
slf4j-api-1.6.0.jar
slf4j-log4j12-1.6.0.jar
7.在不同的位置运行多个程序(即调用该runCluster ()方法),集群就启动了。
作者:
丹江湖畔养蜂子的赵大爹
出处:http://www.cnblogs.com/honeybee/
关于作者:丹江湖畔养蜂子的赵大爹
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