We are developing web application and using Spring 2.0.3 and Quartz 1.6.0 frameworks. For sometime now, we did not have any problems with Quartz scheduling the jobs. But, since recently, Quartz (integrated with Spring framework) which starts one job each 10 minutes, after few days just stops to starting this job. In the logs we have saw nothing except that before stopping scheduling this job, the last started job did not ever finished (we could not find the root cause of it).
Do you have any idea why is this happening, and is it possible to set the Quartz scheduler to run the job even if this job last time started did not ever finished its execution ?