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@ -70,7 +70,7 @@ public class JobScheduleHelper {
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connAutoCommit = conn.getAutoCommit();
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conn.setAutoCommit(false);
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//通过这个来控制多节点只有一个节点会执行 low的一笔
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//TODO 通过这个来控制多节点只有一个节点会执行 low的一笔
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preparedStatement = conn.prepareStatement( "select * from xxl_job_lock where lock_name = 'schedule_lock' for update" );
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preparedStatement.execute();
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@ -78,14 +78,14 @@ public class JobScheduleHelper {
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// 1、pre read
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long nowTime = System.currentTimeMillis();
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//下次执行时间 在5秒内的
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//TODO 下次执行时间 在5秒内的 整个框架的核心
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List<XxlJobInfo> scheduleList = XxlJobAdminConfig.getAdminConfig().getXxlJobInfoDao().scheduleJobQuery(nowTime + PRE_READ_MS, preReadCount);
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if (scheduleList!=null && scheduleList.size()>0) {
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// 2、push time-ring
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for (XxlJobInfo jobInfo: scheduleList) {
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// time-ring jump
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// 当前时间>下次执行时间+5秒 任务触发过期策略
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// TODO 当前时间>下次执行时间+5秒 任务触发过期策略 5秒内不算过期
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if (nowTime > jobInfo.getTriggerNextTime() + PRE_READ_MS) {
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// 2.1、trigger-expire > 5s：pass && make next-trigger-time
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logger.warn(">>>>>>>>>>> xxl-job, schedule misfire, jobId = " + jobInfo.getId());
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@ -104,27 +104,29 @@ public class JobScheduleHelper {
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refreshNextValidTime(jobInfo, new Date());
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}
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//当前时间>下次执行时间 但是控制在5秒内
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//TODO 当前时间>下次执行时间 过期了但是控制在5秒内不算过期
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else if (nowTime > jobInfo.getTriggerNextTime()) {
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// 2.2、trigger-expire < 5s：direct-trigger && make next-trigger-time
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// 1、trigger
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//执行
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//TODO 执行
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JobTriggerPoolHelper.trigger(jobInfo.getId(), TriggerTypeEnum.CRON, -1, null, null, null);
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logger.debug(">>>>>>>>>>> xxl-job, schedule push trigger : jobId = " + jobInfo.getId() );
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// 2、fresh next
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//刷新下次执行时间
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//TODO 刷新下次执行时间
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refreshNextValidTime(jobInfo, new Date());
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// next-trigger-time in 5s, pre-read again
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//如果任务在执行中 且 下次执行时间在5秒内 则将 任务 缓存到 ringData
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//TODO 如果任务在运行状态 且 下次执行时间在5秒内 则将 任务 缓存到 ringData
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if (jobInfo.getTriggerStatus()==1 && nowTime + PRE_READ_MS > jobInfo.getTriggerNextTime()) {
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// 1、make ring second
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//TODO 获取下次执行时间 是哪一秒 作为缓存的key
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int ringSecond = (int)((jobInfo.getTriggerNextTime()/1000)%60);
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// 2、push time ring
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//TODO 缓存至 ringData
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pushTimeRing(ringSecond, jobInfo.getId());
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// 3、fresh next
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@ -249,7 +251,8 @@ public class JobScheduleHelper {
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try {
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// second data
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List<Integer> ringItemData = new ArrayList<>();
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int nowSecond = Calendar.getInstance().get(Calendar.SECOND); // 避免处理耗时太长，跨过刻度，向前校验一个刻度；
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//TODO 避免处理耗时太长，跨过刻度，向前校验一个刻度；
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int nowSecond = Calendar.getInstance().get(Calendar.SECOND);
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for (int i = 0; i < 2; i++) {
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List<Integer> tmpData = ringData.remove( (nowSecond+60-i)%60 );
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if (tmpData != null) {
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@ -262,7 +265,7 @@ public class JobScheduleHelper {
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if (ringItemData.size() > 0) {
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// do trigger
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for (int jobId: ringItemData) {
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// do trigger
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//TODO do trigger
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JobTriggerPoolHelper.trigger(jobId, TriggerTypeEnum.CRON, -1, null, null, null);
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}
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// clear
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liyong
4 years ago