Quartz集群

1、quartz的集群或者说高可用是通过数据库行锁实现的，所以，quartz的高可用性能其实并不高，但是可以适用大部分的中小型定时任务场景。

2、重要：根据官网说明，不要在同一个节点上启用集群，原因大约就是时钟的问题。

3、quartz集群与单节点实现上，主要差别是在配置文件上。Quartz实现动态定时任务

4、集群配置：

spring:  
  # 非集群方式以下关于quartz的配置都可以删除
  quartz:
    # 集群名称，相同的名字归属同一个集群
    scheduler-name: wood-cluster
    # Job 存储器类型。默认为 memory 表示内存，集群选 jdbc 使用数据库。
    job-store-type: jdbc
    jdbc:
      # 使用 JDBC 的 JobStore 的时候，是否自动使用 SQL 初始化 Quartz 表结构。
      initialize-schema: never
    # Quartz 是否自动启动
    auto-startup: true
    # 延迟 N 秒启动
    startup-delay: 0
    # 应用关闭时，是否等待定时任务执行完成。默认为 false ，建议设置为 true
    wait-for-jobs-to-complete-on-shutdown: true
    # 是否覆盖已有 Job 的配置
    overwrite-existing-jobs: false
    properties:
      org:
        quartz:
          scheduler:
            instanceName: wood-instance
            instanceId: AUTO
          # JobStore 相关配置
          jobStore:
            # 数据源名称
            dataSource: dataSource # 使用的数据源
            class: org.quartz.impl.jdbcjobstore.JobStoreTX # JobStore 实现类
            # oracle换成： OracleDelegate
            driverDelegateClass: org.quartz.impl.jdbcjobstore.StdJDBCDelegate
            txIsolationLevelSerializable: true
            tablePrefix: qrtz_ # Quartz 表前缀
            isClustered: true # 是集群模式
            clusterCheckinInterval: 15000
            useProperties: false
          # 线程池相关配置
          threadPool:
            threadCount: 25 # 线程池大小。默认为 10 。
            threadPriority: 5 # 线程优先级
            class: org.quartz.simpl.SimpleThreadPool # 线程池类型

5、由于定时任务持久化到数据库里，quartz会在程序启动时自动加载定时任务，所以应用自定义job_info任务表需要有同步操作。比如job_info手动调整了enable状态，其实对于quartz来说是不可见的。

     例如：因为某种原因停止了应用，并且手动将job_info里的任务设置为false或者删除，但是quartz自管理里表里还有任务，所以定时任务还是会在应用启动侯开启。所以需要在程序启动检测所有有效任务，并删除无效任务，

               并且，不要手动去删除job_info里定时任务，否则需要手动删除QRTZ_系列表里的任务。

    public void addSerialJob(JobInfo jobInfo){
        // 如果使用了数据库集群或者数据库持久化，则需要手动同步job_info表和qrtz_各类表的同步。
        if(!jobInfo.getEnable()){
            deleteJob(jobInfo);
            return;
        }
        JobDetail jobDetail = JobBuilder.newJob(QuartzSerialJob.class)
                .storeDurably()
                .withIdentity(JOB_NAME + jobInfo.getId())
                .build();

        CronTrigger cronTrigger = TriggerBuilder.newTrigger()
                .withIdentity(JOB_NAME + jobInfo.getId())
                .startNow()
                .withSchedule(CronScheduleBuilder.cronSchedule(jobInfo.getCronExpression()))
                .build();
        cronTrigger.getJobDataMap().put(JobConstant.JOB_KEY,jobInfo);

        try {
            JobDetail checked = scheduler.getJobDetail(JobKey.jobKey(JOB_NAME + jobInfo.getId()));
            if(checked==null){
                scheduler.scheduleJob(jobDetail,cronTrigger);
            }
        } catch (SchedulerException e) {
            log.error("创建定时任务失败："+jobInfo.toString());
            e.printStackTrace();
            throw new CommonException(StatusCode.ERROR,"创建定时任务失败:"+jobInfo.toString());
        }
    }

6、quartz自管理任务表

CREATE TABLE QRTZ_JOB_DETAILS(
                                 SCHED_NAME VARCHAR(120) NOT NULL,
                                 JOB_NAME VARCHAR(190) NOT NULL,
                                 JOB_GROUP VARCHAR(190) NOT NULL,
                                 DESCRIPTION VARCHAR(250) NULL,
                                 JOB_CLASS_NAME VARCHAR(250) NOT NULL,
                                 IS_DURABLE VARCHAR(1) NOT NULL,
                                 IS_NONCONCURRENT VARCHAR(1) NOT NULL,
                                 IS_UPDATE_DATA VARCHAR(1) NOT NULL,
                                 REQUESTS_RECOVERY VARCHAR(1) NOT NULL,
                                 JOB_DATA BLOB NULL,
                                 PRIMARY KEY (SCHED_NAME,JOB_NAME,JOB_GROUP))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_TRIGGERS (
                               SCHED_NAME VARCHAR(120) NOT NULL,
                               TRIGGER_NAME VARCHAR(190) NOT NULL,
                               TRIGGER_GROUP VARCHAR(190) NOT NULL,
                               JOB_NAME VARCHAR(190) NOT NULL,
                               JOB_GROUP VARCHAR(190) NOT NULL,
                               DESCRIPTION VARCHAR(250) NULL,
                               NEXT_FIRE_TIME BIGINT(13) NULL,
                               PREV_FIRE_TIME BIGINT(13) NULL,
                               PRIORITY INTEGER NULL,
                               TRIGGER_STATE VARCHAR(16) NOT NULL,
                               TRIGGER_TYPE VARCHAR(8) NOT NULL,
                               START_TIME BIGINT(13) NOT NULL,
                               END_TIME BIGINT(13) NULL,
                               CALENDAR_NAME VARCHAR(190) NULL,
                               MISFIRE_INSTR SMALLINT(2) NULL,
                               JOB_DATA BLOB NULL,
                               PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
                               FOREIGN KEY (SCHED_NAME,JOB_NAME,JOB_GROUP)
                                   REFERENCES QRTZ_JOB_DETAILS(SCHED_NAME,JOB_NAME,JOB_GROUP))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_SIMPLE_TRIGGERS (
                                      SCHED_NAME VARCHAR(120) NOT NULL,
                                      TRIGGER_NAME VARCHAR(190) NOT NULL,
                                      TRIGGER_GROUP VARCHAR(190) NOT NULL,
                                      REPEAT_COUNT BIGINT(7) NOT NULL,
                                      REPEAT_INTERVAL BIGINT(12) NOT NULL,
                                      TIMES_TRIGGERED BIGINT(10) NOT NULL,
                                      PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
                                      FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
                                          REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_CRON_TRIGGERS (
                                    SCHED_NAME VARCHAR(120) NOT NULL,
                                    TRIGGER_NAME VARCHAR(190) NOT NULL,
                                    TRIGGER_GROUP VARCHAR(190) NOT NULL,
                                    CRON_EXPRESSION VARCHAR(120) NOT NULL,
                                    TIME_ZONE_ID VARCHAR(80),
                                    PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
                                    FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
                                        REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_SIMPROP_TRIGGERS
(
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(190) NOT NULL,
    TRIGGER_GROUP VARCHAR(190) NOT NULL,
    STR_PROP_1 VARCHAR(512) NULL,
    STR_PROP_2 VARCHAR(512) NULL,
    STR_PROP_3 VARCHAR(512) NULL,
    INT_PROP_1 INT NULL,
    INT_PROP_2 INT NULL,
    LONG_PROP_1 BIGINT NULL,
    LONG_PROP_2 BIGINT NULL,
    DEC_PROP_1 NUMERIC(13,4) NULL,
    DEC_PROP_2 NUMERIC(13,4) NULL,
    BOOL_PROP_1 VARCHAR(1) NULL,
    BOOL_PROP_2 VARCHAR(1) NULL,
    PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
    FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
        REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_BLOB_TRIGGERS (
                                    SCHED_NAME VARCHAR(120) NOT NULL,
                                    TRIGGER_NAME VARCHAR(190) NOT NULL,
                                    TRIGGER_GROUP VARCHAR(190) NOT NULL,
                                    BLOB_DATA BLOB NULL,
                                    PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
                                    INDEX (SCHED_NAME,TRIGGER_NAME, TRIGGER_GROUP),
                                    FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
                                        REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_CALENDARS (
                                SCHED_NAME VARCHAR(120) NOT NULL,
                                CALENDAR_NAME VARCHAR(190) NOT NULL,
                                CALENDAR BLOB NOT NULL,
                                PRIMARY KEY (SCHED_NAME,CALENDAR_NAME))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_PAUSED_TRIGGER_GRPS (
                                          SCHED_NAME VARCHAR(120) NOT NULL,
                                          TRIGGER_GROUP VARCHAR(190) NOT NULL,
                                          PRIMARY KEY (SCHED_NAME,TRIGGER_GROUP))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_FIRED_TRIGGERS (
                                     SCHED_NAME VARCHAR(120) NOT NULL,
                                     ENTRY_ID VARCHAR(95) NOT NULL,
                                     TRIGGER_NAME VARCHAR(190) NOT NULL,
                                     TRIGGER_GROUP VARCHAR(190) NOT NULL,
                                     INSTANCE_NAME VARCHAR(190) NOT NULL,
                                     FIRED_TIME BIGINT(13) NOT NULL,
                                     SCHED_TIME BIGINT(13) NOT NULL,
                                     PRIORITY INTEGER NOT NULL,
                                     STATE VARCHAR(16) NOT NULL,
                                     JOB_NAME VARCHAR(190) NULL,
                                     JOB_GROUP VARCHAR(190) NULL,
                                     IS_NONCONCURRENT VARCHAR(1) NULL,
                                     REQUESTS_RECOVERY VARCHAR(1) NULL,
                                     PRIMARY KEY (SCHED_NAME,ENTRY_ID))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_SCHEDULER_STATE (
                                      SCHED_NAME VARCHAR(120) NOT NULL,
                                      INSTANCE_NAME VARCHAR(190) NOT NULL,
                                      LAST_CHECKIN_TIME BIGINT(13) NOT NULL,
                                      CHECKIN_INTERVAL BIGINT(13) NOT NULL,
                                      PRIMARY KEY (SCHED_NAME,INSTANCE_NAME))
    ENGINE=InnoDB;

CREATE TABLE QRTZ_LOCKS (
                            SCHED_NAME VARCHAR(120) NOT NULL,
                            LOCK_NAME VARCHAR(40) NOT NULL,
                            PRIMARY KEY (SCHED_NAME,LOCK_NAME))
    ENGINE=InnoDB;

CREATE INDEX IDX_QRTZ_J_REQ_RECOVERY ON QRTZ_JOB_DETAILS(SCHED_NAME,REQUESTS_RECOVERY);
CREATE INDEX IDX_QRTZ_J_GRP ON QRTZ_JOB_DETAILS(SCHED_NAME,JOB_GROUP);

CREATE INDEX IDX_QRTZ_T_J ON QRTZ_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_T_JG ON QRTZ_TRIGGERS(SCHED_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_T_C ON QRTZ_TRIGGERS(SCHED_NAME,CALENDAR_NAME);
CREATE INDEX IDX_QRTZ_T_G ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP);
CREATE INDEX IDX_QRTZ_T_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_N_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_N_G_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_NEXT_FIRE_TIME ON QRTZ_TRIGGERS(SCHED_NAME,NEXT_FIRE_TIME);
CREATE INDEX IDX_QRTZ_T_NFT_ST ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE,NEXT_FIRE_TIME);
CREATE INDEX IDX_QRTZ_T_NFT_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME);
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_STATE);
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE_GRP ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_GROUP,TRIGGER_STATE);

CREATE INDEX IDX_QRTZ_FT_TRIG_INST_NAME ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME);
CREATE INDEX IDX_QRTZ_FT_INST_JOB_REQ_RCVRY ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME,REQUESTS_RECOVERY);
CREATE INDEX IDX_QRTZ_FT_J_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_FT_JG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_GROUP);
CREATE INDEX IDX_QRTZ_FT_T_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP);
CREATE INDEX IDX_QRTZ_FT_TG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_GROUP);

commit;