fix break in select

server.go

@@ -483,6 +483,7 @@ func (s *Server) candidateLoop() {
 		//   * Discover higher term: step down (§5.1)
 		votesGranted := 1
 		timeoutChan := afterBetween(s.ElectionTimeout(), s.ElectionTimeout()*2)
+		timeout := false
 
 		for {
 			// If we received enough votes then stop waiting for more votes.
@@ -501,7 +502,6 @@ func (s *Server) candidateLoop() {
 				} else if resp.Term > s.currentTerm {
 					s.debugln("server.candidate.vote.failed")
 					s.setCurrentTerm(resp.Term, "", false)
-					break
 				}
 
 			case e := <-s.c:
@@ -520,19 +520,23 @@ func (s *Server) candidateLoop() {
 				// Callback to event.
 				e.c <- err
 
-				// both process AER and RVR can make the server to follower
-				if s.State() == Follower {
-					break
-				}
-
 			case <-timeoutChan:
+				timeout = true
+			}
+
+			// both process AER and RVR can make the server to follower
+			// also break when timeout happens
+			if s.State() == Follower || timeout {
 				break
 			}
 		}
 
+		// break when we are not candidate
 		if s.State() != Candidate {
 			break
 		}
+
+		// continue when timeout happened
 	}
 }