Replace switch with if

worker/background_mutation.go

@@ -58,13 +58,12 @@ func (e *executor) processMutationCh(ch chan *subMutation) {
 		for _, edge := range payload.edges {
 			for {
 				err := runMutation(payload.ctx, edge, ptxn)
-				switch {
-				case err == nil:
+				if err == nil {
 					break
-				case err != posting.ErrRetry:
+				}
+				if err != posting.ErrRetry {
 					glog.Errorf("Error while mutating: %v", err)
 					break
-				default:
 				}
 			}
 		}

worker/draft.go

@@ -190,12 +190,9 @@ func newNode(store *raftwal.DiskStorage, gid uint32, id uint64, myAddr string) *
 		// We need a generous size for applyCh, because raft.Tick happens every
 		// 10ms. If we restrict the size here, then Raft goes into a loop trying
 		// to maintain quorum health.
-		applyCh:    make(chan []*pb.Proposal, 1000),
-		rollupCh:   make(chan uint64, 3),
-		proposalCh: make(chan batch, num),
-		commitCh:   make(chan commitBatch, num*20),
-		elog:       trace.NewEventLog("Dgraph", "ApplyCh"),
-		closer:     y.NewCloser(3), // Matches CLOSER:1
+		applyCh: make(chan []*pb.Proposal, 1000),
+		elog:    trace.NewEventLog("Dgraph", "ApplyCh"),
+		closer:  y.NewCloser(3), // Matches CLOSER:1
 	}
 	if x.WorkerConfig.LudicrousMode {
 		n.ex = newExecutor()