Fix recoverer to run task recovering logic every minute

recoverer.go

@@ -65,14 +65,22 @@ func (r *recoverer) start(wg *sync.WaitGroup) {
 				timer.Stop()
 				return
 			case <-timer.C:
+				r.recover()
+				timer.Reset(r.interval)
+			}
+		}
+	}()
+}
+
+func (r *recoverer) recover() {
 	// Get all tasks which have expired 30 seconds ago or earlier.
 	deadline := time.Now().Add(-30 * time.Second)
 	msgs, err := r.broker.ListDeadlineExceeded(deadline, r.queues...)
 	if err != nil {
 		r.logger.Warn("recoverer: could not list deadline exceeded tasks")
-					continue
+		return
 	}
-				const errMsg = "deadline exceeded" // TODO: better error message
+	const errMsg = "deadline exceeded"
 	for _, msg := range msgs {
 		if msg.Retried >= msg.Retry {
 			r.archive(msg, errMsg)
@@ -80,10 +88,6 @@ func (r *recoverer) start(wg *sync.WaitGroup) {
 			r.retry(msg, errMsg)
 		}
 	}
-
-			}
-		}
-	}()
 }
 
 func (r *recoverer) retry(msg *base.TaskMessage, errMsg string) {