What message broker and result backend are you using? Please make sure they are persistent and data can survive between restarts.
On Fri, Jun 1, 2018 at 11:13 AM Pedro Machado <pe...@205datalab.com> wrote: > Hi, > > I am sure this must have come up before but I a quick search of the list > archive didn't return any results. > > I am running airflow 1.9 on docker using the CeleryExecutor. > > I am seeing tasks that stay in queued status for a long time. This morning, > I restarted the scheduler service and the tasks started right away. I > already have a few more in this state. > > What do you recommend to troubleshoot this problem? > > Thanks, > > Pedro >