![[assets/wl_lw_aio_workersubmission.png|256]] # AioWorkerSubmissionQueue (Wait in the Tube Line) The Chef is waiting to put a new request into the **[[Workloads/IO/AIO/_Aio|Pneumatic Tube]]** but someone else is already pushing their canister in. This lock protects the queue shared between the Chef and the **[[Workloads/Activity/Maintenance/IoWorkerMain|Asynchronous Sorters]]**.