Ensure subscriber service respects config

CHANGELOG.md

@@ -46,6 +46,7 @@ The stress tool `influx_stress` will be removed in a subsequent release. We reco
 - [#7585](https://github.com/influxdata/influxdb/pull/7585): Return Error instead of panic when decoding point values.
 - [#7812](https://github.com/influxdata/influxdb/issues/7812): Fix slice out of bounds panic when pruning shard groups. Thanks @vladlopes
 - [#7822](https://github.com/influxdata/influxdb/issues/7822): Drop database will delete /influxdb/data directory
+- [#7838](https://github.com/influxdata/influxdb/issues/7838): Ensure Subscriber service can be disabled.
 
 ## v1.1.1 [2016-12-06]
 

services/subscriber/service.go

@@ -75,6 +75,10 @@ func NewService(c Config) *Service {
 
 // Open starts the subscription service.
 func (s *Service) Open() error {
+	if !s.conf.Enabled {
+		return nil // Service disabled.
+	}
+
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	if s.MetaClient == nil {
@@ -106,6 +110,11 @@ func (s *Service) Open() error {
 func (s *Service) Close() error {
 	s.mu.Lock()
 	defer s.mu.Unlock()
+
+	if s.closed {
+		return nil // Already closed.
+	}
+
 	s.closed = true
 
 	close(s.points)

services/subscriber/service_test.go

@@ -320,7 +320,7 @@ func TestService_Multiple(t *testing.T) {
 		expURL, _ := url.Parse(expURLStr)
 		select {
 		case u = <-urls:
-		case <-time.After(10 * time.Millisecond):
+		case <-time.After(100 * time.Millisecond):
 			t.Fatal("expected urls")
 		}
 		if expURL.String() != u.String() {
@@ -349,7 +349,7 @@ func TestService_Multiple(t *testing.T) {
 	var pr *coordinator.WritePointsRequest
 	select {
 	case pr = <-prs:
-	case <-time.After(10 * time.Millisecond):
+	case <-time.After(100 * time.Millisecond):
 		t.Fatal("expected points request")
 	}
 	if pr != expPR {
@@ -374,7 +374,7 @@ func TestService_Multiple(t *testing.T) {
 	for i := 0; i < 2; i++ {
 		select {
 		case pr = <-prs:
-		case <-time.After(10 * time.Millisecond):
+		case <-time.After(100 * time.Millisecond):
 			t.Fatalf("expected points request: got %d exp 2", i)
 		}
 		if pr != expPR {