Exemplo n.º 1
0
// TestInitMasterShardChecks makes sure the safety checks work
func TestInitMasterShardChecks(t *testing.T) {
	ctx := context.Background()
	db := fakesqldb.Register()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient())

	master := NewFakeTablet(t, wr, "cell1", 0, pb.TabletType_MASTER, db)

	// InitShardMaster with an unknown tablet
	if err := wr.InitShardMaster(ctx, master.Tablet.Keyspace, master.Tablet.Shard, &pb.TabletAlias{
		Cell: master.Tablet.Alias.Cell,
		Uid:  master.Tablet.Alias.Uid + 1,
	}, false /*force*/, 10*time.Second); err == nil || !strings.Contains(err.Error(), "is not in the shard") {
		t.Errorf("InitShardMaster with unknown alias returned wrong error: %v", err)
	}

	// InitShardMaster with two masters in the shard, no force flag
	// (master2 needs to run InitTablet with -force, as it is the second
	// master in the same shard)
	master2 := NewFakeTablet(t, wr, "cell1", 1, pb.TabletType_MASTER, db, ForceInitTablet())
	if err := wr.InitShardMaster(ctx, master2.Tablet.Keyspace, master2.Tablet.Shard, master2.Tablet.Alias, false /*force*/, 10*time.Second); err == nil || !strings.Contains(err.Error(), "is not the only master in the shard") {
		t.Errorf("InitShardMaster with two masters returned wrong error: %v", err)
	}

	// InitShardMaster where the new master fails (use force flag
	// as we have 2 masters). We force the failure by making the
	// SQL commands executed on the master unexpected by the test fixture
	master.StartActionLoop(t, wr)
	defer master.StopActionLoop(t)
	master2.StartActionLoop(t, wr)
	defer master2.StopActionLoop(t)
	if err := wr.InitShardMaster(ctx, master.Tablet.Keyspace, master.Tablet.Shard, master.Tablet.Alias, true /*force*/, 10*time.Second); err == nil || !strings.Contains(err.Error(), "unexpected extra query") {
		t.Errorf("InitShardMaster with new master failing in new master InitMaster returned wrong error: %v", err)
	}
}
Exemplo n.º 2
0
func createTestAgent(ctx context.Context, t *testing.T) *ActionAgent {
	ts := zktopo.NewTestServer(t, []string{"cell1"})

	if err := ts.CreateKeyspace(ctx, "test_keyspace", &pb.Keyspace{}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}

	if err := ts.CreateShard(ctx, "test_keyspace", "0"); err != nil {
		t.Fatalf("CreateShard failed: %v", err)
	}

	port := int32(1234)
	tablet := &pb.Tablet{
		Alias:    tabletAlias,
		Hostname: "host",
		PortMap: map[string]int32{
			"vt": port,
		},
		Ip:       "1.0.0.1",
		Keyspace: "test_keyspace",
		Shard:    "0",
		Type:     pb.TabletType_SPARE,
	}
	if err := ts.CreateTablet(ctx, tablet); err != nil {
		t.Fatalf("CreateTablet failed: %v", err)
	}

	mysqlDaemon := &mysqlctl.FakeMysqlDaemon{MysqlPort: 3306}
	agent := NewTestActionAgent(ctx, ts, tabletAlias, port, 0, mysqlDaemon)
	agent.BinlogPlayerMap = NewBinlogPlayerMap(ts, nil, nil)
	agent.HealthReporter = &fakeHealthCheck{}

	return agent
}
// TestEmergencyReparentShardMasterElectNotBest tries to emergency reparent
// to a host that is not the latest in replication position.
func TestEmergencyReparentShardMasterElectNotBest(t *testing.T) {
	ctx := context.Background()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient(), time.Second)

	// Create a master, a couple good slaves
	oldMaster := NewFakeTablet(t, wr, "cell1", 0, topo.TYPE_MASTER)
	newMaster := NewFakeTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA)
	moreAdvancedSlave := NewFakeTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA)

	// new master
	newMaster.FakeMysqlDaemon.Replicating = true
	newMaster.FakeMysqlDaemon.CurrentMasterPosition = myproto.ReplicationPosition{
		GTIDSet: myproto.MariadbGTID{
			Domain:   2,
			Server:   123,
			Sequence: 456,
		},
	}
	newMaster.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
		"STOP SLAVE",
	}
	newMaster.StartActionLoop(t, wr)
	defer newMaster.StopActionLoop(t)

	// old master, will be scrapped
	oldMaster.StartActionLoop(t, wr)
	defer oldMaster.StopActionLoop(t)

	// more advanced slave
	moreAdvancedSlave.FakeMysqlDaemon.Replicating = true
	moreAdvancedSlave.FakeMysqlDaemon.CurrentMasterPosition = myproto.ReplicationPosition{
		GTIDSet: myproto.MariadbGTID{
			Domain:   2,
			Server:   123,
			Sequence: 457,
		},
	}
	moreAdvancedSlave.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
		"STOP SLAVE",
	}
	moreAdvancedSlave.StartActionLoop(t, wr)
	defer moreAdvancedSlave.StopActionLoop(t)

	// run EmergencyReparentShard
	if err := wr.EmergencyReparentShard(ctx, newMaster.Tablet.Keyspace, newMaster.Tablet.Shard, newMaster.Tablet.Alias, 10*time.Second); err == nil || !strings.Contains(err.Error(), "is more advanced than master elect tablet") {
		t.Fatalf("EmergencyReparentShard returned the wrong error: %v", err)
	}

	// check what was run
	if err := newMaster.FakeMysqlDaemon.CheckSuperQueryList(); err != nil {
		t.Fatalf("newMaster.FakeMysqlDaemon.CheckSuperQueryList failed: %v", err)
	}
	if err := oldMaster.FakeMysqlDaemon.CheckSuperQueryList(); err != nil {
		t.Fatalf("oldMaster.FakeMysqlDaemon.CheckSuperQueryList failed: %v", err)
	}
	if err := moreAdvancedSlave.FakeMysqlDaemon.CheckSuperQueryList(); err != nil {
		t.Fatalf("moreAdvancedSlave.FakeMysqlDaemon.CheckSuperQueryList failed: %v", err)
	}
}
Exemplo n.º 4
0
// TestGetOrCreateShard will create / get 100 shards in a keyspace
// for a long time in parallel, making sure the locking and everything
// works correctly.
func TestGetOrCreateShard(t *testing.T) {
	ctx := context.Background()
	cells := []string{"test_cell"}

	// Set up topology.
	ts := zktopo.NewTestServer(t, cells)

	// and do massive parallel GetOrCreateShard
	keyspace := "test_keyspace"
	wg := sync.WaitGroup{}
	rand.Seed(time.Now().UnixNano())
	for i := 0; i < 100; i++ {
		wg.Add(1)
		go func(i int) {
			defer wg.Done()

			for j := 0; j < 100; j++ {
				index := rand.Intn(10)
				shard := fmt.Sprintf("%v", index)
				si, err := GetOrCreateShard(ctx, ts, keyspace, shard)
				if err != nil {
					t.Errorf("GetOrCreateShard(%v, %v) failed: %v", i, shard, err)
				}
				if si.ShardName() != shard {
					t.Errorf("si.ShardName() is wrong, got %v expected %v", si.ShardName(), shard)
				}
			}
		}(i)
	}
	wg.Wait()
}
Exemplo n.º 5
0
func TestSlaveWasRestarted(t *testing.T) {
	ts := zktopo.NewTestServer(t, []string{"cell1"})
	wr := New(ts, time.Minute, time.Second)
	wr.UseRPCs = false

	// Create an old master, a new master, two good slaves, one bad slave
	oldMasterAlias := createTestTablet(t, wr, "cell1", 0, topo.TYPE_MASTER, topo.TabletAlias{})
	newMasterAlias := createTestTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA, oldMasterAlias)
	slaveAlias := createTestTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA, oldMasterAlias)

	slaveMySQLDaemon := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "101.0.0.1:3301",
		MysqlPort:  3302,
	}
	done := make(chan struct{}, 1)
	startFakeTabletActionLoop(t, wr, slaveAlias, slaveMySQLDaemon, done)
	defer close(done)

	if err := wr.SlaveWasRestarted(slaveAlias, newMasterAlias, false); err != nil {
		t.Fatalf("SlaveWasRestarted %v: %v", slaveAlias, err)
	}
	tablet, err := wr.ts.GetTablet(slaveAlias)
	if err != nil {
		t.Fatalf("GetTablet %v: %v", slaveAlias, err)
	}
	if want, got := newMasterAlias, tablet.Parent; want != got {
		t.Errorf("parent of %v: want %v, got %v", tablet, want, got)
	}
}
Exemplo n.º 6
0
func createTestAgent(ctx context.Context, t *testing.T) *ActionAgent {
	ts := zktopo.NewTestServer(t, []string{cell})

	if err := ts.CreateKeyspace(ctx, keyspace, &pb.Keyspace{}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}

	if err := topo.CreateShard(ctx, ts, keyspace, shard); err != nil {
		t.Fatalf("CreateShard failed: %v", err)
	}

	port := 1234
	tablet := &topo.Tablet{
		Alias:    tabletAlias,
		Hostname: "host",
		Portmap: map[string]int{
			"vt": port,
		},
		IPAddr:   "1.0.0.1",
		Keyspace: keyspace,
		Shard:    shard,
		Type:     topo.TYPE_SPARE,
	}
	if err := topo.CreateTablet(ctx, ts, tablet); err != nil {
		t.Fatalf("CreateTablet failed: %v", err)
	}

	mysqlDaemon := &mysqlctl.FakeMysqlDaemon{MysqlPort: 3306}
	agent := NewTestActionAgent(ctx, ts, tabletAlias, port, 0, mysqlDaemon)
	agent.BinlogPlayerMap = NewBinlogPlayerMap(ts, nil, nil)
	agent.HealthReporter = &fakeHealthCheck{}

	return agent
}
Exemplo n.º 7
0
func TestTabletExternallyReparentedFailedOldMaster(t *testing.T) {
	tabletmanager.SetReparentFlags(time.Minute /* finalizeTimeout */)

	ctx := context.Background()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient(), time.Second)

	// Create an old master, a new master, and a good slave.
	oldMaster := NewFakeTablet(t, wr, "cell1", 0, topo.TYPE_MASTER)
	newMaster := NewFakeTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA)
	goodSlave := NewFakeTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA)

	// Reparent to a replica, and pretend the old master is not responding.

	// On the elected master, we will respond to
	// TabletActionSlaveWasPromoted
	newMaster.StartActionLoop(t, wr)
	defer newMaster.StopActionLoop(t)

	// On the old master, we will only get a
	// TabletActionSlaveWasRestarted call, let's just not
	// respond to it at all

	// On the good slave, we will respond to
	// TabletActionSlaveWasRestarted.
	goodSlave.StartActionLoop(t, wr)
	defer goodSlave.StopActionLoop(t)

	// The reparent should work as expected here
	t.Logf("TabletExternallyReparented(new master) expecting success")
	tmc := tmclient.NewTabletManagerClient()
	ti, err := ts.GetTablet(ctx, newMaster.Tablet.Alias)
	if err != nil {
		t.Fatalf("GetTablet failed: %v", err)
	}
	waitID := makeWaitID()
	if err := tmc.TabletExternallyReparented(context.Background(), ti, waitID); err != nil {
		t.Fatalf("TabletExternallyReparented(replica) failed: %v", err)
	}
	waitForExternalReparent(t, waitID)

	// Now double-check the serving graph is good.
	// Should only have one good replica left.
	addrs, _, err := ts.GetEndPoints(ctx, "cell1", "test_keyspace", "0", topo.TYPE_REPLICA)
	if err != nil {
		t.Fatalf("GetEndPoints failed at the end: %v", err)
	}
	if len(addrs.Entries) != 1 {
		t.Fatalf("GetEndPoints has too many entries: %v", addrs)
	}

	// check the old master was converted to spare
	tablet, err := ts.GetTablet(ctx, oldMaster.Tablet.Alias)
	if err != nil {
		t.Fatalf("GetTablet(%v) failed: %v", oldMaster.Tablet.Alias, err)
	}
	if tablet.Type != topo.TYPE_SPARE {
		t.Fatalf("old master should be spare but is: %v", tablet.Type)
	}
}
Exemplo n.º 8
0
func TestKeyspaceCache(t *testing.T) {
	ctx := context.Background()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	if err := ts.CreateKeyspace(ctx, "ks1", &pb.Keyspace{
		ShardingColumnName: "sharding_key",
	}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}
	if err := ts.CreateKeyspace(ctx, "ks2", &pb.Keyspace{
		SplitShardCount: 10,
	}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}
	kc := newKeyspaceCache(ts)
	var k Keyspace

	expectedK := Keyspace{
		KeyspaceName: "ks1",
		Keyspace: &pb.Keyspace{
			ShardingColumnName: "sharding_key",
		},
	}
	testVersionedObjectCacheMap(t, kc, "ks1", &k, &expectedK)

	k = Keyspace{}
	expectedK = Keyspace{
		KeyspaceName: "ks2",
		Keyspace: &pb.Keyspace{
			SplitShardCount: 10,
		},
	}
	testVersionedObjectCacheMap(t, kc, "ks2", &k, &expectedK)
}
Exemplo n.º 9
0
func TestShardNamesCache(t *testing.T) {
	ctx := context.Background()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	if err := ts.CreateKeyspace(ctx, "ks1", &pb.Keyspace{
		ShardingColumnName: "sharding_key",
	}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}
	if err := ts.CreateShard(ctx, "ks1", "s1", &pb.Shard{
		Cells: []string{"cell1", "cell2"},
	}); err != nil {
		t.Fatalf("CreateShard failed: %v", err)
	}
	if err := ts.CreateShard(ctx, "ks1", "s2", &pb.Shard{
		MasterAlias: &pb.TabletAlias{
			Cell: "cell1",
			Uid:  12,
		},
	}); err != nil {
		t.Fatalf("CreateShard failed: %v", err)
	}
	snc := newShardNamesCache(ts)
	var sn ShardNames

	expectedSN := ShardNames{
		KeyspaceName: "ks1",
		ShardNames:   []string{"s1", "s2"},
	}
	testVersionedObjectCacheMap(t, snc, "ks1", &sn, &expectedSN)
}
Exemplo n.º 10
0
// TestCreateShard tests a few cases for CreateShard
func TestCreateShard(t *testing.T) {
	ctx := context.Background()
	cells := []string{"test_cell"}

	// Set up topology.
	ts := zktopo.NewTestServer(t, cells)

	keyspace := "test_keyspace"
	shard := "0"

	// create shard in a non-existing keyspace
	if err := CreateShard(ctx, ts, keyspace, shard); err == nil {
		t.Fatalf("CreateShard(invalid keyspace) didn't fail")
	}

	// create keyspace
	if err := ts.CreateKeyspace(ctx, keyspace, &pb.Keyspace{}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}

	// create shard should now work
	if err := CreateShard(ctx, ts, keyspace, shard); err != nil {
		t.Fatalf("CreateShard failed: %v", err)
	}
}
Exemplo n.º 11
0
func TestShardExternallyReparented(t *testing.T) {
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := New(ts, time.Minute, time.Second)

	// Create a master and a replica
	oldMasterAlias := createTestTablet(t, wr, "cell1", 0, topo.TYPE_MASTER, topo.TabletAlias{})
	newMasterAlias := createTestTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA, oldMasterAlias)
	goodSlaveAlias1 := createTestTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA, oldMasterAlias)
	goodSlaveAlias2 := createTestTablet(t, wr, "cell2", 3, topo.TYPE_REPLICA, oldMasterAlias)
	badSlaveAlias := createTestTablet(t, wr, "cell1", 4, topo.TYPE_REPLICA, oldMasterAlias)

	// First test: reparent to the same master, make sure it works
	// as expected.
	if err := wr.ShardExternallyReparented("test_keyspace", "0", oldMasterAlias, false, 80); err == nil {
		t.Fatalf("ShardExternallyReparented(same master) should have failed")
	} else {
		if !strings.Contains(err.Error(), "already master") {
			t.Fatalf("ShardExternallyReparented(same master) should have failed with an error that contains 'already master' but got: %v", err)
		}
	}

	// Second test: reparent to the replica, and pretend the old
	// master is still good to go.
	done := make(chan struct{}, 1)

	// On the elected master, we will only respond to
	// TABLET_ACTION_SLAVE_WAS_PROMOTED, no need for a MysqlDaemon
	startFakeTabletActionLoop(t, wr, newMasterAlias, nil, done)

	// On the old master, we will only respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED.
	oldMasterMysqlDaemon := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "101.0.0.1:3301",
	}
	startFakeTabletActionLoop(t, wr, oldMasterAlias, oldMasterMysqlDaemon, done)

	// On the good slaves, we will respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED.
	goodSlaveMysqlDaemon1 := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "101.0.0.1:3301",
	}
	startFakeTabletActionLoop(t, wr, goodSlaveAlias1, goodSlaveMysqlDaemon1, done)
	goodSlaveMysqlDaemon2 := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "101.0.0.1:3301",
	}
	startFakeTabletActionLoop(t, wr, goodSlaveAlias2, goodSlaveMysqlDaemon2, done)

	// On the bad slave, we will respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED.
	badSlaveMysqlDaemon := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "234.0.0.1:3301",
	}
	startFakeTabletActionLoop(t, wr, badSlaveAlias, badSlaveMysqlDaemon, done)

	if err := wr.ShardExternallyReparented("test_keyspace", "0", newMasterAlias, false, 60); err != nil {
		t.Fatalf("ShardExternallyReparented(replica) failed: %v", err)
	}
	close(done)
}
Exemplo n.º 12
0
func TestShardExternallyReparentedFailedOldMaster(t *testing.T) {
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, time.Minute, time.Second)

	// Create an old master, a new master, two good slaves
	oldMaster := NewFakeTablet(t, wr, "cell1", 0, topo.TYPE_MASTER)
	newMaster := NewFakeTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA,
		TabletParent(oldMaster.Tablet.Alias))
	goodSlave := NewFakeTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA,
		TabletParent(oldMaster.Tablet.Alias))

	// Reparent to a replica, and pretend the old master is not responding

	// On the elected master, we will respond to
	// TABLET_ACTION_SLAVE_WAS_PROMOTED
	newMaster.FakeMysqlDaemon.MasterAddr = ""
	newMaster.StartActionLoop(t, wr)
	defer newMaster.StopActionLoop(t)

	// On the old master, we will only get a
	// TABLET_ACTION_SLAVE_WAS_RESTARTED call, let's just not
	// respond to it at all

	// On the good slave, we will respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED.
	goodSlave.FakeMysqlDaemon.MasterAddr = newMaster.Tablet.MysqlIpAddr()
	goodSlave.StartActionLoop(t, wr)
	defer goodSlave.StopActionLoop(t)

	// The reparent should work as expected here
	t.Logf("ShardExternallyReparented(new master) expecting success")
	if err := wr.ShardExternallyReparented("test_keyspace", "0", newMaster.Tablet.Alias); err != nil {
		t.Fatalf("ShardExternallyReparented(replica) failed: %v", err)
	}

	// Now double-check the serving graph is good.
	// Should only have one good replica left.
	addrs, err := ts.GetEndPoints("cell1", "test_keyspace", "0", topo.TYPE_REPLICA)
	if err != nil {
		t.Fatalf("GetEndPoints failed at the end: %v", err)
	}
	if len(addrs.Entries) != 1 {
		t.Fatalf("GetEndPoints has too many entries: %v", addrs)
	}

	// check the old master was converted to spare
	tablet, err := ts.GetTablet(oldMaster.Tablet.Alias)
	if err != nil {
		t.Fatalf("GetTablet(%v) failed: %v", oldMaster.Tablet.Alias, err)
	}
	if tablet.Type != topo.TYPE_SPARE {
		t.Fatalf("old master should be spare but is: %v", tablet.Type)
	}
	if tablet.Parent != newMaster.Tablet.Alias {
		t.Fatalf("old master has the wrong master, got %v expected %v", tablet.Parent, newMaster.Tablet.Alias)
	}
}
Exemplo n.º 13
0
func TestKnownCellsCache(t *testing.T) {
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	kcc := newKnownCellsCache(ts)
	var kc KnownCells
	expectedKc := KnownCells{
		Cells: []string{"cell1", "cell2"},
	}

	testVersionedObjectCache(t, kcc, &kc, &expectedKc)
}
Exemplo n.º 14
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func TestTabletData(t *testing.T) {
	db := fakesqldb.Register()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient())

	if err := ts.CreateKeyspace(context.Background(), "ks", &topodatapb.Keyspace{
		ShardingColumnName: "keyspace_id",
		ShardingColumnType: topodatapb.KeyspaceIdType_UINT64,
	}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}

	tablet1 := testlib.NewFakeTablet(t, wr, "cell1", 0, topodatapb.TabletType_MASTER, db, testlib.TabletKeyspaceShard(t, "ks", "-80"))
	tablet1.StartActionLoop(t, wr)
	defer tablet1.StopActionLoop(t)
	shsq := newStreamHealthTabletServer(t)
	grpcqueryservice.RegisterForTest(tablet1.RPCServer, shsq)

	thc := newTabletHealthCache(ts)

	stats := &querypb.RealtimeStats{
		HealthError:         "testHealthError",
		SecondsBehindMaster: 72,
		CpuUsage:            1.1,
	}

	// Keep broadcasting until the first result goes through.
	stop := make(chan struct{})
	go func() {
		for {
			select {
			case <-stop:
				return
			default:
				shsq.BroadcastHealth(42, stats)
			}
		}
	}()

	// Start streaming and wait for the first result.
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	result, err := thc.Get(ctx, tablet1.Tablet.Alias)
	cancel()
	close(stop)

	if err != nil {
		t.Fatalf("thc.Get failed: %v", err)
	}
	if got, want := result.RealtimeStats, stats; !proto.Equal(got, want) {
		t.Errorf("RealtimeStats = %#v, want %#v", got, want)
	}
}
Exemplo n.º 15
0
// New creates a topology fixture.
func New(t *testing.T, cells []string) *Fixture {
	ts := zktopo.NewTestServer(t, cells)

	wr := wrangler.New(logutil.NewConsoleLogger(), ts, 1*time.Second, 1*time.Second)

	return &Fixture{
		T:        t,
		Topo:     ts,
		Wrangler: wr,
		done:     make(chan struct{}, 1),
		tablets:  make(map[int]*tabletPack),
	}
}
Exemplo n.º 16
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// New creates a topology fixture.
func New(t *testing.T, cells []string) *Fixture {
	ts := zktopo.NewTestServer(t, cells)

	wr := wrangler.New(ts, 1*time.Second, 1*time.Second)
	wr.UseRPCs = false

	return &Fixture{
		T:        t,
		Topo:     ts,
		Wrangler: wr,
		done:     make(chan struct{}, 1),
		tablets:  make(map[int]*tabletPack),
	}
}
Exemplo n.º 17
0
// TestShardExternallyReparentedContinueOnUnexpectedMaster makes sure
// that we ignore mysql's master if the flag is set
func TestShardExternallyReparentedContinueOnUnexpectedMaster(t *testing.T) {
	ts := zktopo.NewTestServer(t, []string{"cell1"})
	wr := New(ts, time.Minute, time.Second)
	wr.UseRPCs = false

	// Create an old master, a new master, two good slaves, one bad slave
	oldMasterAlias := createTestTablet(t, wr, "cell1", 0, topo.TYPE_MASTER, topo.TabletAlias{})
	newMasterAlias := createTestTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA, oldMasterAlias)
	goodSlaveAlias := createTestTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA, oldMasterAlias)
	done := make(chan struct{}, 1)

	// On the elected master, we will respond to
	// TABLET_ACTION_SLAVE_WAS_PROMOTED, so we need a MysqlDaemon
	// that returns no master, and the new port (as returned by mysql)
	newMasterMysqlDaemon := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "",
		MysqlPort:  3301,
	}
	startFakeTabletActionLoop(t, wr, newMasterAlias, newMasterMysqlDaemon, done)

	// On the old master, we will only respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED and point to a bad host
	oldMasterMysqlDaemon := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "1.2.3.4:6666",
		MysqlPort:  3300,
	}
	startFakeTabletActionLoop(t, wr, oldMasterAlias, oldMasterMysqlDaemon, done)

	// On the good slaves, we will respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED and point to a bad host
	goodSlaveMysqlDaemon := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "1.2.3.4:6666",
		MysqlPort:  3302,
	}
	startFakeTabletActionLoop(t, wr, goodSlaveAlias, goodSlaveMysqlDaemon, done)

	// This tests the good case, where everything works as planned
	t.Logf("ShardExternallyReparented(new master) expecting success")
	// temporary failure still:
	if err := wr.ShardExternallyReparented("test_keyspace", "0", newMasterAlias, false, true, 60); err == nil {
		t.Fatal("ShardExternallyReparented(replica) should have failed")
	}
	// if err := wr.ShardExternallyReparented("test_keyspace", "0", newMasterAlias, false, true, 60); err != nil {
	//	t.Fatalf("ShardExternallyReparented(replica) failed: %v", err)
	// }
	close(done)
}
Exemplo n.º 18
0
// TestTabletExternallyReparentedWithDifferentMysqlPort makes sure
// that if mysql is restarted on the master-elect tablet and has a different
// port, we pick it up correctly.
func TestTabletExternallyReparentedWithDifferentMysqlPort(t *testing.T) {
	tabletmanager.SetReparentFlags(time.Minute /* finalizeTimeout */)

	ctx := context.Background()
	db := fakesqldb.Register()
	ts := zktopo.NewTestServer(t, []string{"cell1"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient(), time.Second)

	// Create an old master, a new master, two good slaves, one bad slave
	oldMaster := NewFakeTablet(t, wr, "cell1", 0, pb.TabletType_MASTER, db)
	newMaster := NewFakeTablet(t, wr, "cell1", 1, pb.TabletType_REPLICA, db)
	goodSlave := NewFakeTablet(t, wr, "cell1", 2, pb.TabletType_REPLICA, db)

	// Now we're restarting mysql on a different port, 3301->3303
	// but without updating the Tablet record in topology.

	// On the elected master, we will respond to
	// TabletActionSlaveWasPromoted, so we need a MysqlDaemon
	// that returns no master, and the new port (as returned by mysql)
	newMaster.FakeMysqlDaemon.MysqlPort = 3303
	newMaster.StartActionLoop(t, wr)
	defer newMaster.StopActionLoop(t)

	// On the old master, we will only respond to
	// TabletActionSlaveWasRestarted and point to the new mysql port
	oldMaster.StartActionLoop(t, wr)
	defer oldMaster.StopActionLoop(t)

	// On the good slaves, we will respond to
	// TabletActionSlaveWasRestarted and point to the new mysql port
	goodSlave.StartActionLoop(t, wr)
	defer goodSlave.StopActionLoop(t)

	// This tests the good case, where everything works as planned
	t.Logf("TabletExternallyReparented(new master) expecting success")
	tmc := tmclient.NewTabletManagerClient()
	ti, err := ts.GetTablet(ctx, newMaster.Tablet.Alias)
	if err != nil {
		t.Fatalf("GetTablet failed: %v", err)
	}
	waitID := makeWaitID()
	if err := tmc.TabletExternallyReparented(context.Background(), ti, waitID); err != nil {
		t.Fatalf("TabletExternallyReparented(replica) failed: %v", err)
	}
	waitForExternalReparent(t, waitID)
}
Exemplo n.º 19
0
// TestShardExternallyReparentedWithDifferentMysqlPort makes sure
// that if mysql is restarted on the master-elect tablet and has a different
// port, we pick it up correctly.
func TestShardExternallyReparentedWithDifferentMysqlPort(t *testing.T) {
	ts := zktopo.NewTestServer(t, []string{"cell1"})
	wr := New(ts, time.Minute, time.Second)
	wr.UseRPCs = false

	// Create an old master, a new master, two good slaves, one bad slave
	oldMasterAlias := createTestTablet(t, wr, "cell1", 0, topo.TYPE_MASTER, topo.TabletAlias{})
	newMasterAlias := createTestTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA, oldMasterAlias)
	goodSlaveAlias := createTestTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA, oldMasterAlias)
	done := make(chan struct{}, 1)

	// Now we're restarting mysql on a different port, 3301->3302
	// but without updating the Tablet record in topology.

	// On the elected master, we will respond to
	// TABLET_ACTION_SLAVE_WAS_PROMOTED, so we need a MysqlDaemon
	// that returns no master, and the new port (as returned by mysql)
	newMasterMysqlDaemon := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "",
		MysqlPort:  3302,
	}
	startFakeTabletActionLoop(t, wr, newMasterAlias, newMasterMysqlDaemon, done)

	// On the old master, we will only respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED and point to the new mysql port
	oldMasterMysqlDaemon := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "101.0.0.1:3302",
		MysqlPort:  3300,
	}
	startFakeTabletActionLoop(t, wr, oldMasterAlias, oldMasterMysqlDaemon, done)

	// On the good slaves, we will respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED and point to the new mysql port
	goodSlaveMysqlDaemon := &mysqlctl.FakeMysqlDaemon{
		MasterAddr: "101.0.0.1:3302",
		MysqlPort:  3302,
	}
	startFakeTabletActionLoop(t, wr, goodSlaveAlias, goodSlaveMysqlDaemon, done)

	// This tests the good case, where everything works as planned
	t.Logf("ShardExternallyReparented(new master) expecting success")
	if err := wr.ShardExternallyReparented("test_keyspace", "0", newMasterAlias, false, false, 60); err != nil {
		t.Fatalf("ShardExternallyReparented(replica) failed: %v", err)
	}
	close(done)
}
Exemplo n.º 20
0
func TestKeyspacesCache(t *testing.T) {
	ctx := context.Background()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	if err := ts.CreateKeyspace(ctx, "ks1", &pb.Keyspace{}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}
	if err := ts.CreateKeyspace(ctx, "ks2", &pb.Keyspace{}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}
	kc := newKeyspacesCache(ts)
	var k Keyspaces
	expectedK := Keyspaces{
		Keyspaces: []string{"ks1", "ks2"},
	}

	testVersionedObjectCache(t, kc, &k, &expectedK)
}
Exemplo n.º 21
0
func TestReparentTablet(t *testing.T) {
	ctx := context.Background()
	db := fakesqldb.Register()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient())

	// create shard and tablets
	if err := ts.CreateShard(ctx, "test_keyspace", "0"); err != nil {
		t.Fatalf("CreateShard failed: %v", err)
	}
	master := NewFakeTablet(t, wr, "cell1", 1, pb.TabletType_MASTER, db)
	slave := NewFakeTablet(t, wr, "cell1", 2, pb.TabletType_REPLICA, db)

	// mark the master inside the shard
	si, err := ts.GetShard(ctx, "test_keyspace", "0")
	if err != nil {
		t.Fatalf("GetShard failed: %v", err)
	}
	si.MasterAlias = master.Tablet.Alias
	if err := ts.UpdateShard(ctx, si); err != nil {
		t.Fatalf("UpdateShard failed: %v", err)
	}

	// master action loop (to initialize host and port)
	master.StartActionLoop(t, wr)
	defer master.StopActionLoop(t)

	// slave loop
	slave.FakeMysqlDaemon.SetMasterCommandsInput = fmt.Sprintf("%v:%v", master.Tablet.Hostname, master.Tablet.PortMap["mysql"])
	slave.FakeMysqlDaemon.SetMasterCommandsResult = []string{"set master cmd 1"}
	slave.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
		"set master cmd 1",
	}
	slave.StartActionLoop(t, wr)
	defer slave.StopActionLoop(t)

	// run ReparentTablet
	if err := wr.ReparentTablet(ctx, slave.Tablet.Alias); err != nil {
		t.Fatalf("ReparentTablet failed: %v", err)
	}

	// check what was run
	if err := slave.FakeMysqlDaemon.CheckSuperQueryList(); err != nil {
		t.Fatalf("slave.FakeMysqlDaemon.CheckSuperQueryList failed: %v", err)
	}
}
Exemplo n.º 22
0
func TestVersion(t *testing.T) {
	// We need to run this test with the /debug/vars version of the
	// plugin.
	wrangler.ResetDebugVarsGetVersion()

	// Initialize our environment
	db := fakesqldb.Register()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient(), time.Second)
	vp := NewVtctlPipe(t, ts)
	defer vp.Close()

	// couple tablets is enough
	sourceMaster := NewFakeTablet(t, wr, "cell1", 10, pb.TabletType_MASTER, db,
		TabletKeyspaceShard(t, "source", "0"),
		StartHTTPServer())
	sourceReplica := NewFakeTablet(t, wr, "cell1", 11, pb.TabletType_REPLICA, db,
		TabletKeyspaceShard(t, "source", "0"),
		StartHTTPServer())

	// sourceMaster loop
	sourceMasterGitRev := "fake git rev"
	sourceMaster.StartActionLoop(t, wr)
	sourceMaster.HTTPServer.Handler.(*http.ServeMux).HandleFunc("/debug/vars", expvarHandler(&sourceMasterGitRev))
	defer sourceMaster.StopActionLoop(t)

	// sourceReplica loop
	sourceReplicaGitRev := "fake git rev"
	sourceReplica.StartActionLoop(t, wr)
	sourceReplica.HTTPServer.Handler.(*http.ServeMux).HandleFunc("/debug/vars", expvarHandler(&sourceReplicaGitRev))
	defer sourceReplica.StopActionLoop(t)

	// test when versions are the same
	if err := vp.Run([]string{"ValidateVersionKeyspace", sourceMaster.Tablet.Keyspace}); err != nil {
		t.Fatalf("ValidateVersionKeyspace(same) failed: %v", err)
	}

	// test when versions are different
	sourceReplicaGitRev = "different fake git rev"
	if err := vp.Run([]string{"ValidateVersionKeyspace", sourceMaster.Tablet.Keyspace}); err == nil || !strings.Contains(err.Error(), "is different than slave") {
		t.Fatalf("ValidateVersionKeyspace(different) returned an unexpected error: %v", err)
	}
}
Exemplo n.º 23
0
func TestCellShardTabletsCache(t *testing.T) {
	ctx := context.Background()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	if err := ts.UpdateShardReplicationFields(ctx, "cell1", "ks1", "s1", func(sr *pb.ShardReplication) error {
		sr.Nodes = []*pb.ShardReplication_Node{
			&pb.ShardReplication_Node{
				TabletAlias: &pb.TabletAlias{
					Cell: "cell1",
					Uid:  12,
				},
			},
			&pb.ShardReplication_Node{
				TabletAlias: &pb.TabletAlias{
					Cell: "cell1",
					Uid:  13,
				},
			},
		}
		return nil
	}); err != nil {
		t.Fatalf("UpdateShardReplicationFields failed: %v", err)
	}
	cstc := newCellShardTabletsCache(ts)
	var cst CellShardTablets

	expectedCST := CellShardTablets{
		Cell:         "cell1",
		KeyspaceName: "ks1",
		ShardName:    "s1",
		TabletAliases: []topo.TabletAlias{
			topo.TabletAlias{
				Cell: "cell1",
				Uid:  12,
			},
			topo.TabletAlias{
				Cell: "cell1",
				Uid:  13,
			},
		},
	}
	testVersionedObjectCacheMap(t, cstc, "cell1/ks1/s1", &cst, &expectedCST)
}
Exemplo n.º 24
0
func TestHandleExplorerRedirect(t *testing.T) {
	ctx := context.Background()

	ts := zktopo.NewTestServer(t, []string{"cell1"})
	if err := ts.CreateTablet(ctx, &topodatapb.Tablet{
		Alias: &topodatapb.TabletAlias{
			Cell: "cell1",
			Uid:  123,
		},
		Keyspace: "test_keyspace",
		Shard:    "123-456",
	}); err != nil {
		t.Fatalf("CreateTablet failed: %v", err)
	}

	table := map[string]string{
		"/explorers/redirect?type=keyspace&keyspace=test_keyspace":                                          "/app/#/keyspaces/",
		"/explorers/redirect?type=shard&keyspace=test_keyspace&shard=-80":                                   "/app/#/shard/test_keyspace/-80",
		"/explorers/redirect?type=srv_keyspace&keyspace=test_keyspace&cell=cell1":                           "/app/#/keyspaces/",
		"/explorers/redirect?type=srv_shard&keyspace=test_keyspace&shard=-80&cell=cell1":                    "/app/#/shard/test_keyspace/-80",
		"/explorers/redirect?type=srv_type&keyspace=test_keyspace&shard=-80&cell=cell1&tablet_type=replica": "/app/#/shard/test_keyspace/-80",
		"/explorers/redirect?type=tablet&alias=cell1-123":                                                   "/app/#/shard/test_keyspace/123-456",
		"/explorers/redirect?type=replication&keyspace=test_keyspace&shard=-80&cell=cell1":                  "/app/#/shard/test_keyspace/-80",
	}

	for input, want := range table {
		request, err := http.NewRequest("GET", input, nil)
		if err != nil {
			t.Fatalf("NewRequest error: %v", err)
		}
		if err := request.ParseForm(); err != nil {
			t.Fatalf("ParseForm error: %v", err)
		}
		got, err := handleExplorerRedirect(ctx, ts, request)
		if err != nil {
			t.Fatalf("handleExplorerRedirect error: %v", err)
		}
		if got != want {
			t.Errorf("handlExplorerRedirect(%#v) = %#v, want %#v", input, got, want)
		}
	}
}
Exemplo n.º 25
0
// TestShardExternallyReparentedWithDifferentMysqlPort makes sure
// that if mysql is restarted on the master-elect tablet and has a different
// port, we pick it up correctly.
func TestShardExternallyReparentedWithDifferentMysqlPort(t *testing.T) {
	ts := zktopo.NewTestServer(t, []string{"cell1"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, time.Minute, time.Second)
	wr.UseRPCs = false

	// Create an old master, a new master, two good slaves, one bad slave
	oldMaster := NewFakeTablet(t, wr, "cell1", 0, topo.TYPE_MASTER)
	newMaster := NewFakeTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA,
		TabletParent(oldMaster.Tablet.Alias))
	goodSlave := NewFakeTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA,
		TabletParent(oldMaster.Tablet.Alias))

	// Now we're restarting mysql on a different port, 3301->3303
	// but without updating the Tablet record in topology.

	// On the elected master, we will respond to
	// TABLET_ACTION_SLAVE_WAS_PROMOTED, so we need a MysqlDaemon
	// that returns no master, and the new port (as returned by mysql)
	newMaster.FakeMysqlDaemon.MasterAddr = ""
	newMaster.FakeMysqlDaemon.MysqlPort = 3303
	newMaster.StartActionLoop(t, wr)
	defer newMaster.StopActionLoop(t)

	// On the old master, we will only respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED and point to the new mysql port
	oldMaster.FakeMysqlDaemon.MasterAddr = "101.0.0.1:3303"
	oldMaster.StartActionLoop(t, wr)
	defer oldMaster.StopActionLoop(t)

	// On the good slaves, we will respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED and point to the new mysql port
	goodSlave.FakeMysqlDaemon.MasterAddr = "101.0.0.1:3303"
	goodSlave.StartActionLoop(t, wr)
	defer goodSlave.StopActionLoop(t)

	// This tests the good case, where everything works as planned
	t.Logf("ShardExternallyReparented(new master) expecting success")
	if err := wr.ShardExternallyReparented("test_keyspace", "0", newMaster.Tablet.Alias); err != nil {
		t.Fatalf("ShardExternallyReparented(replica) failed: %v", err)
	}
}
Exemplo n.º 26
0
// TestTabletExternallyReparentedContinueOnUnexpectedMaster makes sure
// that we ignore mysql's master if the flag is set
func TestTabletExternallyReparentedContinueOnUnexpectedMaster(t *testing.T) {
	tabletmanager.SetReparentFlags(time.Minute /* finalizeTimeout */)

	ctx := context.Background()
	ts := zktopo.NewTestServer(t, []string{"cell1"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient(), time.Second)

	// Create an old master, a new master, two good slaves, one bad slave
	oldMaster := NewFakeTablet(t, wr, "cell1", 0, topo.TYPE_MASTER)
	newMaster := NewFakeTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA)
	goodSlave := NewFakeTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA)

	// On the elected master, we will respond to
	// TabletActionSlaveWasPromoted, so we need a MysqlDaemon
	// that returns no master, and the new port (as returned by mysql)
	newMaster.StartActionLoop(t, wr)
	defer newMaster.StopActionLoop(t)

	// On the old master, we will only respond to
	// TabletActionSlaveWasRestarted and point to a bad host
	oldMaster.StartActionLoop(t, wr)
	defer oldMaster.StopActionLoop(t)

	// On the good slave, we will respond to
	// TabletActionSlaveWasRestarted and point to a bad host
	goodSlave.StartActionLoop(t, wr)
	defer goodSlave.StopActionLoop(t)

	// This tests the good case, where everything works as planned
	t.Logf("TabletExternallyReparented(new master) expecting success")
	tmc := tmclient.NewTabletManagerClient()
	ti, err := ts.GetTablet(ctx, newMaster.Tablet.Alias)
	if err != nil {
		t.Fatalf("GetTablet failed: %v", err)
	}
	if err := tmc.TabletExternallyReparented(context.Background(), ti, ""); err != nil {
		t.Fatalf("TabletExternallyReparented(replica) failed: %v", err)
	}
}
Exemplo n.º 27
0
// TestCreateShardCustomSharding checks ServedTypes is set correctly
// when creating multiple custom sharding shards
func TestCreateShardCustomSharding(t *testing.T) {
	ctx := context.Background()
	cells := []string{"test_cell"}

	// Set up topology.
	ts := zktopo.NewTestServer(t, cells)

	// create keyspace
	keyspace := "test_keyspace"
	if err := ts.CreateKeyspace(ctx, keyspace, &pb.Keyspace{}); err != nil {
		t.Fatalf("CreateKeyspace failed: %v", err)
	}

	// create first shard in keyspace
	shard0 := "0"
	if err := CreateShard(ctx, ts, keyspace, shard0); err != nil {
		t.Fatalf("CreateShard(shard0) failed: %v", err)
	}
	if si, err := ts.GetShard(ctx, keyspace, shard0); err != nil {
		t.Fatalf("GetShard(shard0) failed: %v", err)
	} else {
		if len(si.ServedTypes) != 3 {
			t.Fatalf("shard0 should have all 3 served types")
		}
	}

	// create second shard in keyspace
	shard1 := "1"
	if err := CreateShard(ctx, ts, keyspace, shard1); err != nil {
		t.Fatalf("CreateShard(shard1) failed: %v", err)
	}
	if si, err := ts.GetShard(ctx, keyspace, shard1); err != nil {
		t.Fatalf("GetShard(shard1) failed: %v", err)
	} else {
		if len(si.ServedTypes) != 3 {
			t.Fatalf("shard1 should have all 3 served types")
		}
	}
}
Exemplo n.º 28
0
// TestShardExternallyReparentedContinueOnUnexpectedMaster makes sure
// that we ignore mysql's master if the flag is set
func TestShardExternallyReparentedContinueOnUnexpectedMaster(t *testing.T) {
	ts := zktopo.NewTestServer(t, []string{"cell1"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, time.Minute, time.Second)
	wr.UseRPCs = false

	// Create an old master, a new master, two good slaves, one bad slave
	oldMaster := NewFakeTablet(t, wr, "cell1", 0, topo.TYPE_MASTER)
	newMaster := NewFakeTablet(t, wr, "cell1", 1, topo.TYPE_REPLICA,
		TabletParent(oldMaster.Tablet.Alias))
	goodSlave := NewFakeTablet(t, wr, "cell1", 2, topo.TYPE_REPLICA,
		TabletParent(oldMaster.Tablet.Alias))

	// On the elected master, we will respond to
	// TABLET_ACTION_SLAVE_WAS_PROMOTED, so we need a MysqlDaemon
	// that returns no master, and the new port (as returned by mysql)
	newMaster.FakeMysqlDaemon.MasterAddr = ""
	newMaster.StartActionLoop(t, wr)
	defer newMaster.StopActionLoop(t)

	// On the old master, we will only respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED and point to a bad host
	oldMaster.FakeMysqlDaemon.MasterAddr = "1.2.3.4:6666"
	oldMaster.StartActionLoop(t, wr)
	defer oldMaster.StopActionLoop(t)

	// On the good slave, we will respond to
	// TABLET_ACTION_SLAVE_WAS_RESTARTED and point to a bad host
	goodSlave.FakeMysqlDaemon.MasterAddr = "1.2.3.4:6666"
	goodSlave.StartActionLoop(t, wr)
	defer goodSlave.StopActionLoop(t)

	// This tests the good case, where everything works as planned
	t.Logf("ShardExternallyReparented(new master) expecting success")
	// temporary failure still:
	if err := wr.ShardExternallyReparented("test_keyspace", "0", newMaster.Tablet.Alias); err != nil {
		t.Fatalf("ShardExternallyReparented(replica) failed: %v", err)
	}
}
Exemplo n.º 29
0
func testSplitClone(t *testing.T, strategy string) {
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient(), time.Second)

	sourceMaster := testlib.NewFakeTablet(t, wr, "cell1", 0,
		topo.TYPE_MASTER, testlib.TabletKeyspaceShard(t, "ks", "-80"))
	sourceRdonly1 := testlib.NewFakeTablet(t, wr, "cell1", 1,
		topo.TYPE_RDONLY, testlib.TabletKeyspaceShard(t, "ks", "-80"))
	sourceRdonly2 := testlib.NewFakeTablet(t, wr, "cell1", 2,
		topo.TYPE_RDONLY, testlib.TabletKeyspaceShard(t, "ks", "-80"))

	leftMaster := testlib.NewFakeTablet(t, wr, "cell1", 10,
		topo.TYPE_MASTER, testlib.TabletKeyspaceShard(t, "ks", "-40"))
	leftRdonly := testlib.NewFakeTablet(t, wr, "cell1", 11,
		topo.TYPE_RDONLY, testlib.TabletKeyspaceShard(t, "ks", "-40"))

	rightMaster := testlib.NewFakeTablet(t, wr, "cell1", 20,
		topo.TYPE_MASTER, testlib.TabletKeyspaceShard(t, "ks", "40-80"))
	rightRdonly := testlib.NewFakeTablet(t, wr, "cell1", 21,
		topo.TYPE_RDONLY, testlib.TabletKeyspaceShard(t, "ks", "40-80"))

	for _, ft := range []*testlib.FakeTablet{sourceMaster, sourceRdonly1, sourceRdonly2, leftMaster, leftRdonly, rightMaster, rightRdonly} {
		ft.StartActionLoop(t, wr)
		defer ft.StopActionLoop(t)
	}

	// add the topo and schema data we'll need
	ctx := context.Background()
	if err := topo.CreateShard(ctx, ts, "ks", "80-"); err != nil {
		t.Fatalf("CreateShard(\"-80\") failed: %v", err)
	}
	if err := wr.SetKeyspaceShardingInfo(ctx, "ks", "keyspace_id", key.KIT_UINT64, 4, false); err != nil {
		t.Fatalf("SetKeyspaceShardingInfo failed: %v", err)
	}
	if err := wr.RebuildKeyspaceGraph(ctx, "ks", nil, true); err != nil {
		t.Fatalf("RebuildKeyspaceGraph failed: %v", err)
	}

	gwrk, err := NewSplitCloneWorker(wr, "cell1", "ks", "-80", nil, strategy, 10 /*sourceReaderCount*/, 4 /*destinationPackCount*/, 1 /*minTableSizeForSplit*/, 10 /*destinationWriterCount*/)
	if err != nil {
		t.Errorf("Worker creation failed: %v", err)
	}
	wrk := gwrk.(*SplitCloneWorker)

	for _, sourceRdonly := range []*testlib.FakeTablet{sourceRdonly1, sourceRdonly2} {
		sourceRdonly.FakeMysqlDaemon.Schema = &myproto.SchemaDefinition{
			DatabaseSchema: "",
			TableDefinitions: []*myproto.TableDefinition{
				&myproto.TableDefinition{
					Name:              "table1",
					Columns:           []string{"id", "msg", "keyspace_id"},
					PrimaryKeyColumns: []string{"id"},
					Type:              myproto.TableBaseTable,
					// This informs how many rows we can pack into a single insert
					DataLength: 2048,
				},
			},
		}
		sourceRdonly.FakeMysqlDaemon.DbAppConnectionFactory = SourceRdonlyFactory(t)
		sourceRdonly.FakeMysqlDaemon.CurrentMasterPosition = myproto.ReplicationPosition{
			GTIDSet: myproto.MariadbGTID{Domain: 12, Server: 34, Sequence: 5678},
		}
		sourceRdonly.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
			"STOP SLAVE",
			"START SLAVE",
		}
		sourceRdonly.RPCServer.Register(gorpcqueryservice.New(&testQueryService{t: t}))
	}

	// We read 100 source rows. sourceReaderCount is set to 10, so
	// we'll have 100/10=10 rows per table chunk.
	// destinationPackCount is set to 4, so we take 4 source rows
	// at once. So we'll process 4 + 4 + 2 rows to get to 10.
	// That means 3 insert statements on each target (each
	// containing half of the rows, i.e. 2 + 2 + 1 rows). So 3 * 10
	// = 30 insert statements on each destination.
	leftMaster.FakeMysqlDaemon.DbAppConnectionFactory = DestinationsFactory(t, 30)
	leftRdonly.FakeMysqlDaemon.DbAppConnectionFactory = DestinationsFactory(t, 30)
	rightMaster.FakeMysqlDaemon.DbAppConnectionFactory = DestinationsFactory(t, 30)
	rightRdonly.FakeMysqlDaemon.DbAppConnectionFactory = DestinationsFactory(t, 30)

	// Only wait 1 ms between retries, so that the test passes faster
	*executeFetchRetryTime = (1 * time.Millisecond)

	err = wrk.Run(ctx)
	status := wrk.StatusAsText()
	t.Logf("Got status: %v", status)
	if err != nil || wrk.State != WorkerStateDone {
		t.Errorf("Worker run failed")
	}

	if statsDestinationAttemptedResolves.String() != "3" {
		t.Errorf("Wrong statsDestinationAttemptedResolves: wanted %v, got %v", "3", statsDestinationAttemptedResolves.String())
	}
	if statsDestinationActualResolves.String() != "1" {
		t.Errorf("Wrong statsDestinationActualResolves: wanted %v, got %v", "1", statsDestinationActualResolves.String())
	}
	if statsRetryCounters.String() != "{\"ReadOnly\": 2}" {
		t.Errorf("Wrong statsRetryCounters: wanted %v, got %v", "{\"ReadOnly\": 2}", statsRetryCounters.String())
	}
}
Exemplo n.º 30
0
func TestPermissions(t *testing.T) {
	// Initialize our environment
	ctx := context.Background()
	db := fakesqldb.Register()
	ts := zktopo.NewTestServer(t, []string{"cell1", "cell2"})
	wr := wrangler.New(logutil.NewConsoleLogger(), ts, tmclient.NewTabletManagerClient())
	vp := NewVtctlPipe(t, ts)
	defer vp.Close()

	master := NewFakeTablet(t, wr, "cell1", 0, topodatapb.TabletType_MASTER, db)
	replica := NewFakeTablet(t, wr, "cell1", 1, topodatapb.TabletType_REPLICA, db)

	// mark the master inside the shard
	si, err := ts.GetShard(ctx, master.Tablet.Keyspace, master.Tablet.Shard)
	if err != nil {
		t.Fatalf("GetShard failed: %v", err)
	}
	si.MasterAlias = master.Tablet.Alias
	if err := ts.UpdateShard(ctx, si); err != nil {
		t.Fatalf("UpdateShard failed: %v", err)
	}

	// master will be asked for permissions
	master.FakeMysqlDaemon.FetchSuperQueryMap = map[string]*sqltypes.Result{
		"SELECT * FROM mysql.user": {
			Fields: []*querypb.Field{
				{
					Name: "Host",
					Type: sqltypes.Char,
				},
				{
					Name: "User",
					Type: sqltypes.Char,
				},
				{
					Name: "Password",
					Type: sqltypes.Char,
				},
				{
					Name: "Select_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Insert_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Update_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Delete_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Drop_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Reload_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Shutdown_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Process_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "File_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Grant_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "References_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Index_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Alter_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Show_db_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Super_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_tmp_table_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Lock_tables_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Execute_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Repl_slave_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Repl_client_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_view_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Show_view_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_routine_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Alter_routine_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_user_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Event_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Trigger_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_tablespace_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "ssl_type",
					Type: sqltypes.Char,
				},
				{
					Name: "ssl_cipher",
					Type: 252,
				},
				{
					Name: "x509_issuer",
					Type: 252,
				},
				{
					Name: "x509_subject",
					Type: 252,
				},
				{
					Name: "max_questions",
					Type: 3,
				},
				{
					Name: "max_updates",
					Type: 3,
				},
				{
					Name: "max_connections",
					Type: 3,
				},
				{
					Name: "max_user_connections",
					Type: 3,
				},
				{
					Name: "plugin",
					Type: sqltypes.Char,
				},
				{
					Name: "authentication_string",
					Type: 252,
				},
				{
					Name: "password_expired",
					Type: sqltypes.Char,
				},
				{
					Name: "is_role",
					Type: sqltypes.Char,
				}},
			RowsAffected: 0x6,
			InsertID:     0x0,
			Rows: [][]sqltypes.Value{
				{
					sqltypes.MakeString([]byte("test_host1")),
					sqltypes.MakeString([]byte("test_user1")),
					sqltypes.MakeString([]byte("test_password1")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N"))},
				{
					sqltypes.MakeString([]byte("test_host2")),
					sqltypes.MakeString([]byte("test_user2")),
					sqltypes.MakeString([]byte("test_password2")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N"))},
				{
					sqltypes.MakeString([]byte("test_host3")),
					sqltypes.MakeString([]byte("test_user3")),
					sqltypes.MakeString([]byte("test_password3")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N"))},
				{
					sqltypes.MakeString([]byte("test_host4")),
					sqltypes.MakeString([]byte("test_user4")),
					sqltypes.MakeString([]byte("test_password4")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("0")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("N")),
				},
			},
		},
		"SELECT * FROM mysql.db": {
			Fields: []*querypb.Field{
				{
					Name: "Host",
					Type: sqltypes.Char,
				},
				{
					Name: "Db",
					Type: sqltypes.Char,
				},
				{
					Name: "User",
					Type: sqltypes.Char,
				},
				{
					Name: "Select_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Insert_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Update_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Delete_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Drop_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Grant_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "References_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Index_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Alter_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_tmp_table_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Lock_tables_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_view_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Show_view_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Create_routine_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Alter_routine_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Execute_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Event_priv",
					Type: sqltypes.Char,
				},
				{
					Name: "Trigger_priv",
					Type: sqltypes.Char,
				},
			},
			RowsAffected: 0,
			InsertID:     0,
			Rows: [][]sqltypes.Value{
				{
					sqltypes.MakeString([]byte("test_host")),
					sqltypes.MakeString([]byte("test_db")),
					sqltypes.MakeString([]byte("test_user")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("N")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
					sqltypes.MakeString([]byte("Y")),
				},
			},
		},
	}
	master.StartActionLoop(t, wr)
	defer master.StopActionLoop(t)

	// Make a two-level-deep copy, so we can make them diverge later.
	user := *master.FakeMysqlDaemon.FetchSuperQueryMap["SELECT * FROM mysql.user"]
	user.Fields = append([]*querypb.Field{}, user.Fields...)

	// replica will be asked for permissions
	replica.FakeMysqlDaemon.FetchSuperQueryMap = map[string]*sqltypes.Result{
		"SELECT * FROM mysql.user": &user,
		"SELECT * FROM mysql.db":   master.FakeMysqlDaemon.FetchSuperQueryMap["SELECT * FROM mysql.db"],
	}
	replica.StartActionLoop(t, wr)
	defer replica.StopActionLoop(t)

	// Overwrite with the correct value to make sure it passes.
	replica.FakeMysqlDaemon.FetchSuperQueryMap["SELECT * FROM mysql.user"].Fields[0] = &querypb.Field{
		Name: "Host",
		Type: sqltypes.Char,
	}

	// run ValidatePermissionsKeyspace, this should work
	if err := vp.Run([]string{"ValidatePermissionsKeyspace", master.Tablet.Keyspace}); err != nil {
		t.Fatalf("ValidatePermissionsKeyspace failed: %v", err)
	}

	// modify one field, this should fail
	replica.FakeMysqlDaemon.FetchSuperQueryMap["SELECT * FROM mysql.user"].Fields[0] = &querypb.Field{
		Name: "Wrong",
		Type: sqltypes.Char,
	}

	// run ValidatePermissionsKeyspace again, this should now fail
	if err := vp.Run([]string{"ValidatePermissionsKeyspace", master.Tablet.Keyspace}); err == nil || !strings.Contains(err.Error(), "has an extra user") {
		t.Fatalf("ValidatePermissionsKeyspace has unexpected err: %v", err)
	}

}