0
我想弄清楚爲什麼我的預定作業不是並行執行的。我的交易管理可能有問題嗎？方法JobScheduledExecutionService.execute()是@Scheduled與fixedRate=250，所以它應該每隔250ms被解僱，無論前一份工作是否完成。由於日誌，它沒有按預期工作。爲什麼我的預定作業不是並行執行
日誌：https://pastebin.com/M6FaXpeE
我的代碼如下。
@Service
@Slf4j
public class JobExecutionService {
private final TransactionalJobExecutionService transactionalJobExecutionService;
@Autowired
public JobExecutionService(TransactionalJobExecutionService transactionalJobExecutionService) {
this.transactionalJobExecutionService = transactionalJobExecutionService;
}
public void execute() {
TestJob job = transactionalJobExecutionService.getJob();
executeJob(job);
transactionalJobExecutionService.finishJob(job);
}
private void executeJob(TestJob testJob) {
log.debug("Execution-0: {}", testJob.toString());
Random random = new Random();
try {
Thread.sleep(random.nextInt(3000) + 200);
} catch (InterruptedException e) {
log.error("Error", e);
}
log.debug("Execution-1: {}", testJob.toString());
}
}
@Service
@Slf4j
public class JobScheduledExecutionService {
private final JobExecutionService jobExecutionService;
@Autowired
public JobScheduledExecutionService(JobExecutionService jobExecutionService) {
this.jobExecutionService = jobExecutionService;
}
@Scheduled(fixedRate = 250)
public void execute() {
log.trace("Job fired");
jobExecutionService.execute();
}
}
@Service
@Slf4j
@Transactional
public class TransactionalJobExecutionService {
private final Environment environment;
private final TestJobRepository testJobRepository;
private final TestJobResultRepository testJobResultRepository;
@Autowired
public TransactionalJobExecutionService(Environment environment, TestJobRepository testJobRepository, TestJobResultRepository testJobResultRepository) {
this.environment = environment;
this.testJobRepository = testJobRepository;
this.testJobResultRepository = testJobResultRepository;
}
public TestJob getJob() {
TestJob testJob = testJobRepository.findFirstByStatusOrderByIdAsc(
0
);
testJob.setStatus(1);
testJobRepository.save(testJob);
return testJob;
}
public void finishJob(TestJob testJob) {
testJobResultRepository.save(
new TestJobResult(
null,
testJob.getId(),
environment.getProperty("local.server.port")
)
);
}
}
@Configuration
public class SchedulingConfigurerConfiguration implements SchedulingConfigurer {
@Override
public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
taskScheduler.setPoolSize(32);
taskScheduler.initialize();
taskRegistrar.setTaskScheduler(taskScheduler);
}
}