Currently, when a connection error occurs in run_serial_workflow at the calls to the [rjc client](https://github.com/reanahub/reana-workflow-engine-serial/blob/master/reana_workflow_engine_serial/tasks.py#L44) the task will not start. By wrapping the calls in a try-except we could catch this exception and retry.
Currently, when a connection error occurs in
run_serial_workflowat the calls to the[rjc client](https://github.com/reanahub/reana-workflow-engine-serial/blob/master/reana_workflow_engine_serial/tasks.py#L44)the task will not start. By wrapping the calls in atry-exceptwe could catch this exception and retry.