Jobs submitted to Queue are in Waiting State


HI All,'
Initially all the jobs submitted to queue QNIGHT (all end of the day jobs run from here ) are in Waiting State from the past two days after some advise we have cleared up the queue and restarted the app server . We tried submitting the jobs again to Queue QNIGHT but still the same infact we found out now the jobs submitted to other queues are in W state. Can some explain how queues function ? WHat could be the cause we have not seen anything related to in logs.

Thanks in advance,
I have seen this issue before and the quick trick I have done to sort out is to disable and re-enable E1 queue in your case QNIGHT

application to achieve disable/renable of a queue = P986130