Beispiel #1
0
func (s *EtcdServer) sendMergedSnap(merged snap.Message) {
	atomic.AddInt64(&s.inflightSnapshots, 1)

	s.r.transport.SendSnapshot(merged)
	go func() {
		select {
		case ok := <-merged.CloseNotify():
			// delay releasing inflight snapshot for another 30 seconds to
			// block log compaction.
			// If the follower still fails to catch up, it is probably just too slow
			// to catch up. We cannot avoid the snapshot cycle anyway.
			if ok {
				select {
				case <-time.After(releaseDelayAfterSnapshot):
				case <-s.done:
				}
			}
			atomic.AddInt64(&s.inflightSnapshots, -1)
		case <-s.done:
			return
		}
	}()
}
Beispiel #2
0
func testSnapshotSend(t *testing.T, sm *snap.Message) (bool, []os.FileInfo) {
	d, err := ioutil.TempDir(os.TempDir(), "snapdir")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(d)

	r := &fakeRaft{}
	tr := &Transport{pipelineRt: &http.Transport{}, ClusterID: types.ID(1), Raft: r}
	ch := make(chan struct{}, 1)
	h := &syncHandler{newSnapshotHandler(tr, r, snap.New(d), types.ID(1)), ch}
	srv := httptest.NewServer(h)
	defer srv.Close()

	picker := mustNewURLPicker(t, []string{srv.URL})
	snapsend := newSnapshotSender(tr, picker, types.ID(1), newPeerStatus(types.ID(1)))
	defer snapsend.stop()

	snapsend.send(*sm)

	sent := false
	select {
	case <-time.After(time.Second):
		t.Fatalf("timed out sending snapshot")
	case sent = <-sm.CloseNotify():
	}

	// wait for handler to finish accepting snapshot
	<-ch

	files, rerr := ioutil.ReadDir(d)
	if rerr != nil {
		t.Fatal(rerr)
	}
	return sent, files
}