msb-public-java
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xxl-job
mirror of https://gitee.com/xuxueli0323/xxl-job.git
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update document

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pull/10/head
xuxueli 6 years ago
parent 2ad59c1052
commit 2f640f138a
1 changed files with 29 additions and 33 deletions
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62
xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobScheduleHelper.java
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@ -66,16 +66,14 @@ public class JobScheduleHelper {
// 1、预读5s内调度任务 // 1、预读5s内调度任务
long maxNextTime = System.currentTimeMillis() + 5000; long maxNextTime = System.currentTimeMillis() + 5000;
long nowTime = System.currentTimeMillis();
List<XxlJobInfo> scheduleList = XxlJobAdminConfig.getAdminConfig().getXxlJobInfoDao().scheduleJobQuery(maxNextTime); List<XxlJobInfo> scheduleList = XxlJobAdminConfig.getAdminConfig().getXxlJobInfoDao().scheduleJobQuery(maxNextTime);
if (scheduleList!=null && scheduleList.size()>0) { if (scheduleList!=null && scheduleList.size()>0) {
// 2、推送时间轮 // 2、推送时间轮
for (XxlJobInfo jobInfo: scheduleList) { for (XxlJobInfo jobInfo: scheduleList) {
// 时间轮刻度计算 // 时间轮刻度计算
int ringSecond = -1; if (System.currentTimeMillis() > jobInfo.getTriggerNextTime() + 5000) {
if (jobInfo.getTriggerNextTime() < nowTime - 5000) { // 过期超5s：本地忽略，当前时间开始计算下次触发时间 // 过期超5s：本地忽略，当前时间开始计算下次触发时间
ringSecond = -1;
jobInfo.setTriggerLastTime(jobInfo.getTriggerNextTime()); jobInfo.setTriggerLastTime(jobInfo.getTriggerNextTime());
jobInfo.setTriggerNextTime( jobInfo.setTriggerNextTime(
@ -83,8 +81,12 @@ public class JobScheduleHelper {
.getNextValidTimeAfter(new Date()) .getNextValidTimeAfter(new Date())
.getTime() .getTime()
); );
} else if (jobInfo.getTriggerNextTime() < nowTime) { // 过期5s内：立即触发一次，当前时间开始计算下次触发时间
ringSecond = (int)((nowTime/1000)%60); // pass
continue;
} else if (System.currentTimeMillis() > jobInfo.getTriggerNextTime()) {
// 过期5s内 ：立即触发一次，当前时间开始计算下次触发时间
jobInfo.setTriggerLastTime(jobInfo.getTriggerNextTime()); jobInfo.setTriggerLastTime(jobInfo.getTriggerNextTime());
jobInfo.setTriggerNextTime( jobInfo.setTriggerNextTime(
@ -92,8 +94,15 @@ public class JobScheduleHelper {
.getNextValidTimeAfter(new Date()) .getNextValidTimeAfter(new Date())
.getTime() .getTime()
); );
} else { // 未过期：正常触发，递增计算下次触发时间
ringSecond = (int)((jobInfo.getTriggerNextTime()/1000)%60); // do trigger
JobTriggerPoolHelper.trigger(jobInfo.getId(), TriggerTypeEnum.CRON, -1, null, null);
logger.debug(">>>>>>>>>>> xxl-job, push trigger : jobId = " + jobInfo.getId() );
} else {
// 未过期：正常触发，递增计算下次触发时间
int ringSecond = (int)((jobInfo.getTriggerNextTime()/1000)%60);
jobInfo.setTriggerLastTime(jobInfo.getTriggerNextTime()); jobInfo.setTriggerLastTime(jobInfo.getTriggerNextTime());
jobInfo.setTriggerNextTime( jobInfo.setTriggerNextTime(
@ -101,20 +110,18 @@ public class JobScheduleHelper {
.getNextValidTimeAfter(new Date(jobInfo.getTriggerNextTime())) .getNextValidTimeAfter(new Date(jobInfo.getTriggerNextTime()))
.getTime() .getTime()
); );
}
if (ringSecond == -1) {
continue;
}
// push async ring // push async ring
List<Integer> ringItemData = ringData.get(ringSecond); List<Integer> ringItemData = ringData.get(ringSecond);
if (ringItemData == null) { if (ringItemData == null) {
ringItemData = new ArrayList<Integer>(); ringItemData = new ArrayList<Integer>();
ringData.put(ringSecond, ringItemData); ringData.put(ringSecond, ringItemData);
}
ringItemData.add(jobInfo.getId());
logger.debug(">>>>>>>>>>> xxl-job, push time-ring : " + ringSecond + " = " + Arrays.asList(ringItemData) );
} }
ringItemData.add(jobInfo.getId());
logger.debug(">>>>>>>>>>> xxl-job, push time-ring : " + ringSecond + " = " + Arrays.asList(ringItemData) );
} }
// 3、更新trigger信息 // 3、更新trigger信息
@ -181,29 +188,18 @@ public class JobScheduleHelper {
} }
} }
int lastSecond = -1;
while (!ringThreadToStop) { while (!ringThreadToStop) {
try { try {
// second data // second data
List<Integer> ringItemData = new ArrayList<>(); List<Integer> ringItemData = new ArrayList<>();
int nowSecond = (int)((System.currentTimeMillis()/1000)%60); // 避免处理耗时太长，跨过刻度； 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；
if (lastSecond == -1) { for (int i = 0; i < 2; i++) {
lastSecond = (nowSecond+59)%60; List<Integer> tmpData = ringData.remove( (nowSecond+60-i)%60 );
}
for (int i = 1; i <=60; i++) {
int secondItem = (lastSecond+i)%60;
List<Integer> tmpData = ringData.remove(secondItem);
if (tmpData != null) { if (tmpData != null) {
ringItemData.addAll(tmpData); ringItemData.addAll(tmpData);
} }
if (secondItem == nowSecond) {
break;
}
} }
lastSecond = nowSecond;
// ring trigger // ring trigger
logger.debug(">>>>>>>>>>> xxl-job, time-ring beat : " + nowSecond + " = " + Arrays.asList(ringItemData) ); logger.debug(">>>>>>>>>>> xxl-job, time-ring beat : " + nowSecond + " = " + Arrays.asList(ringItemData) );

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