bug宝典JAVA篇 missed their scheduled fire-time
使用quartz做定时任务的时候，发现时而定时任务不执行，检查日志如下：10:42:33.925 INFO o.s.scheduling.quartz.LocalDataSourceJobStore - ClusterManager: detected 1 failed or restarted instances.10:42:33.925 INFO o.s.scheduling.quartz
