Flaky test fixes (#16940)

Signed-off-by: Manan Gupta <[email protected]>
vitessio · Oct 15, 2024 · b7fbd81 · b7fbd81
1 parent 7797b49
commit b7fbd81
Show file tree

Hide file tree

Showing 9 changed files with 106 additions and 79 deletions.
diff --git a/go/mysql/server_test.go b/go/mysql/server_test.go
@@ -1424,7 +1424,7 @@ func TestListenerShutdown(t *testing.T) {
 
 	l.Shutdown()
 
-	assert.EqualValues(t, 1, connRefuse.Get(), "connRefuse")
+	waitForConnRefuse(t, 1)
 
 	err = conn.Ping()
 	require.EqualError(t, err, "Server shutdown in progress (errno 1053) (sqlstate 08S01)")
@@ -1436,6 +1436,24 @@ func TestListenerShutdown(t *testing.T) {
 	require.Equal(t, "Server shutdown in progress", sqlErr.Message)
 }
 
+func waitForConnRefuse(t *testing.T, valWanted int64) {
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	tick := time.NewTicker(100 * time.Millisecond)
+	defer tick.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			require.FailNow(t, "connRefuse did not reach %v", valWanted)
+		case <-tick.C:
+			if connRefuse.Get() == valWanted {
+				return
+			}
+		}
+	}
+}
+
 func TestParseConnAttrs(t *testing.T) {
 	expected := map[string]string{
 		"_client_version": "8.0.11",

diff --git a/go/vt/mysqlctl/fakemysqldaemon.go b/go/vt/mysqlctl/fakemysqldaemon.go
@@ -286,13 +286,6 @@ func (fmd *FakeMysqlDaemon) GetServerUUID(ctx context.Context) (string, error) {
 	return "000000", nil
 }
 
-// CurrentPrimaryPositionLocked is thread-safe.
-func (fmd *FakeMysqlDaemon) CurrentPrimaryPositionLocked(pos replication.Position) {
-	fmd.mu.Lock()
-	defer fmd.mu.Unlock()
-	fmd.CurrentPrimaryPosition = pos
-}
-
 // ReplicationStatus is part of the MysqlDaemon interface.
 func (fmd *FakeMysqlDaemon) ReplicationStatus() (replication.ReplicationStatus, error) {
 	if fmd.ReplicationStatusError != nil {
@@ -316,6 +309,8 @@ func (fmd *FakeMysqlDaemon) ReplicationStatus() (replication.ReplicationStatus,
 
 // PrimaryStatus is part of the MysqlDaemon interface.
 func (fmd *FakeMysqlDaemon) PrimaryStatus(ctx context.Context) (replication.PrimaryStatus, error) {
+	fmd.mu.Lock()
+	defer fmd.mu.Unlock()
 	if fmd.PrimaryStatusError != nil {
 		return replication.PrimaryStatus{}, fmd.PrimaryStatusError
 	}
@@ -381,7 +376,21 @@ func (fmd *FakeMysqlDaemon) GetPreviousGTIDs(ctx context.Context, binlog string)
 
 // PrimaryPosition is part of the MysqlDaemon interface.
 func (fmd *FakeMysqlDaemon) PrimaryPosition() (replication.Position, error) {
-	return fmd.CurrentPrimaryPosition, nil
+	return fmd.GetPrimaryPositionLocked(), nil
+}
+
+// GetPrimaryPositionLocked gets the primary position while holding the lock.
+func (fmd *FakeMysqlDaemon) GetPrimaryPositionLocked() replication.Position {
+	fmd.mu.Lock()
+	defer fmd.mu.Unlock()
+	return fmd.CurrentPrimaryPosition
+}
+
+// SetPrimaryPositionLocked is thread-safe.
+func (fmd *FakeMysqlDaemon) SetPrimaryPositionLocked(pos replication.Position) {
+	fmd.mu.Lock()
+	defer fmd.mu.Unlock()
+	fmd.CurrentPrimaryPosition = pos
 }
 
 // IsReadOnly is part of the MysqlDaemon interface.

diff --git a/go/vt/vtctl/grpcvtctldserver/server_test.go b/go/vt/vtctl/grpcvtctldserver/server_test.go
@@ -12620,7 +12620,7 @@ func TestTabletExternallyReparented(t *testing.T) {
 				defer func() {
 					topofactory.SetError(nil)
 
-					ctx, cancel := context.WithTimeout(ctx, time.Millisecond*10)
+					ctx, cancel := context.WithTimeout(ctx, time.Second*10)
 					defer cancel()
 
 					resp, err := vtctld.GetTablets(ctx, &vtctldatapb.GetTabletsRequest{})

diff --git a/go/vt/vttablet/tabletmanager/framework_test.go b/go/vt/vttablet/tabletmanager/framework_test.go
@@ -111,8 +111,8 @@ func newTestEnv(t *testing.T, ctx context.Context, sourceKeyspace string, source
 	tmclienttest.SetProtocol(fmt.Sprintf("go.vt.vttablet.tabletmanager.framework_test_%s", t.Name()), tenv.protoName)
 
 	tenv.mysqld = mysqlctl.NewFakeMysqlDaemon(fakesqldb.New(t))
-	var err error
-	tenv.mysqld.CurrentPrimaryPosition, err = replication.ParsePosition(gtidFlavor, gtidPosition)
+	curPosition, err := replication.ParsePosition(gtidFlavor, gtidPosition)
+	tenv.mysqld.SetPrimaryPositionLocked(curPosition)
 	require.NoError(t, err)
 
 	return tenv

diff --git a/go/vt/wrangler/testlib/backup_test.go b/go/vt/wrangler/testlib/backup_test.go
@@ -150,15 +150,15 @@ func testBackupRestore(t *testing.T, cDetails *compressionDetails) error {
 	primary := NewFakeTablet(t, wr, "cell1", 0, topodatapb.TabletType_PRIMARY, db)
 	primary.FakeMysqlDaemon.ReadOnly = false
 	primary.FakeMysqlDaemon.Replicating = false
-	primary.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	primary.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 
 	// start primary so that replica can fetch primary position from it
 	primary.StartActionLoop(t, wr)
@@ -170,15 +170,15 @@ func testBackupRestore(t *testing.T, cDetails *compressionDetails) error {
 	sourceTablet.FakeMysqlDaemon.ReadOnly = true
 	sourceTablet.FakeMysqlDaemon.Replicating = true
 	sourceTablet.FakeMysqlDaemon.SetReplicationSourceInputs = []string{fmt.Sprintf("%s:%d", primary.Tablet.MysqlHostname, primary.Tablet.MysqlPort)}
-	sourceTablet.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	sourceTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 	sourceTablet.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
 		// These 3 statements come from tablet startup
 		"STOP SLAVE",
@@ -223,15 +223,15 @@ func testBackupRestore(t *testing.T, cDetails *compressionDetails) error {
 	destTablet := NewFakeTablet(t, wr, "cell1", 2, topodatapb.TabletType_REPLICA, db)
 	destTablet.FakeMysqlDaemon.ReadOnly = true
 	destTablet.FakeMysqlDaemon.Replicating = true
-	destTablet.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	destTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 	destTablet.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
 		// These 3 statements come from tablet startup
 		"STOP SLAVE",
@@ -249,7 +249,7 @@ func testBackupRestore(t *testing.T, cDetails *compressionDetails) error {
 		"RESET MASTER":           {},
 		"SET GLOBAL gtid_purged": {},
 	}
-	destTablet.FakeMysqlDaemon.SetReplicationPositionPos = sourceTablet.FakeMysqlDaemon.CurrentPrimaryPosition
+	destTablet.FakeMysqlDaemon.SetReplicationPositionPos = sourceTablet.FakeMysqlDaemon.GetPrimaryPositionLocked()
 	destTablet.FakeMysqlDaemon.SetReplicationSourceInputs = append(destTablet.FakeMysqlDaemon.SetReplicationSourceInputs, topoproto.MysqlAddr(primary.Tablet))
 
 	destTablet.StartActionLoop(t, wr)
@@ -301,7 +301,7 @@ func testBackupRestore(t *testing.T, cDetails *compressionDetails) error {
 		"START SLAVE",
 	}
 
-	primary.FakeMysqlDaemon.SetReplicationPositionPos = primary.FakeMysqlDaemon.CurrentPrimaryPosition
+	primary.FakeMysqlDaemon.SetReplicationPositionPos = primary.FakeMysqlDaemon.GetPrimaryPositionLocked()
 
 	// restore primary from latest backup
 	require.NoError(t, primary.TM.RestoreData(ctx, logutil.NewConsoleLogger(), 0 /* waitForBackupInterval */, false /* deleteBeforeRestore */, time.Time{} /* restoreFromBackupTs */, time.Time{} /* restoreToTimestamp */, "", mysqlShutdownTimeout),
@@ -388,15 +388,15 @@ func TestBackupRestoreLagged(t *testing.T) {
 	primary := NewFakeTablet(t, wr, "cell1", 0, topodatapb.TabletType_PRIMARY, db)
 	primary.FakeMysqlDaemon.ReadOnly = false
 	primary.FakeMysqlDaemon.Replicating = false
-	primary.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	primary.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 
 	// start primary so that replica can fetch primary position from it
 	primary.StartActionLoop(t, wr)
@@ -407,15 +407,15 @@ func TestBackupRestoreLagged(t *testing.T) {
 	sourceTablet := NewFakeTablet(t, wr, "cell1", 1, topodatapb.TabletType_REPLICA, db)
 	sourceTablet.FakeMysqlDaemon.ReadOnly = true
 	sourceTablet.FakeMysqlDaemon.Replicating = true
-	sourceTablet.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	sourceTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 456,
 			},
 		},
-	}
+	})
 	sourceTablet.FakeMysqlDaemon.SetReplicationSourceInputs = []string{fmt.Sprintf("%s:%d", primary.Tablet.MysqlHostname, primary.Tablet.MysqlPort)}
 	sourceTablet.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
 		// These 3 statements come from tablet startup
@@ -449,7 +449,7 @@ func TestBackupRestoreLagged(t *testing.T) {
 
 	timer := time.NewTicker(1 * time.Second)
 	<-timer.C
-	sourceTablet.FakeMysqlDaemon.CurrentPrimaryPositionLocked(replication.Position{
+	sourceTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
@@ -468,7 +468,7 @@ func TestBackupRestoreLagged(t *testing.T) {
 		require.NoError(t, sourceTablet.FakeMysqlDaemon.CheckSuperQueryList())
 		assert.True(t, sourceTablet.FakeMysqlDaemon.Replicating)
 		assert.True(t, sourceTablet.FakeMysqlDaemon.Running)
-		assert.Equal(t, primary.FakeMysqlDaemon.CurrentPrimaryPosition, sourceTablet.FakeMysqlDaemon.CurrentPrimaryPosition)
+		assert.Equal(t, primary.FakeMysqlDaemon.GetPrimaryPositionLocked(), sourceTablet.FakeMysqlDaemon.GetPrimaryPositionLocked())
 	case <-timer2.C:
 		require.FailNow(t, "Backup timed out")
 	}
@@ -477,15 +477,15 @@ func TestBackupRestoreLagged(t *testing.T) {
 	destTablet := NewFakeTablet(t, wr, "cell1", 2, topodatapb.TabletType_REPLICA, db)
 	destTablet.FakeMysqlDaemon.ReadOnly = true
 	destTablet.FakeMysqlDaemon.Replicating = true
-	destTablet.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	destTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 456,
 			},
 		},
-	}
+	})
 	destTablet.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
 		// These 3 statements come from tablet startup
 		"STOP SLAVE",
@@ -503,7 +503,7 @@ func TestBackupRestoreLagged(t *testing.T) {
 		"RESET MASTER":           {},
 		"SET GLOBAL gtid_purged": {},
 	}
-	destTablet.FakeMysqlDaemon.SetReplicationPositionPos = destTablet.FakeMysqlDaemon.CurrentPrimaryPosition
+	destTablet.FakeMysqlDaemon.SetReplicationPositionPos = destTablet.FakeMysqlDaemon.GetPrimaryPositionLocked()
 	destTablet.FakeMysqlDaemon.SetReplicationSourceInputs = append(destTablet.FakeMysqlDaemon.SetReplicationSourceInputs, topoproto.MysqlAddr(primary.Tablet))
 
 	destTablet.StartActionLoop(t, wr)
@@ -526,7 +526,7 @@ func TestBackupRestoreLagged(t *testing.T) {
 
 	timer = time.NewTicker(1 * time.Second)
 	<-timer.C
-	destTablet.FakeMysqlDaemon.CurrentPrimaryPositionLocked(replication.Position{
+	destTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
@@ -544,7 +544,7 @@ func TestBackupRestoreLagged(t *testing.T) {
 		require.NoError(t, destTablet.FakeMysqlDaemon.CheckSuperQueryList(), "destTablet.FakeMysqlDaemon.CheckSuperQueryList failed")
 		assert.True(t, destTablet.FakeMysqlDaemon.Replicating)
 		assert.True(t, destTablet.FakeMysqlDaemon.Running)
-		assert.Equal(t, primary.FakeMysqlDaemon.CurrentPrimaryPosition, destTablet.FakeMysqlDaemon.CurrentPrimaryPosition)
+		assert.Equal(t, primary.FakeMysqlDaemon.GetPrimaryPositionLocked(), destTablet.FakeMysqlDaemon.GetPrimaryPositionLocked())
 	case <-timer2.C:
 		require.FailNow(t, "Restore timed out")
 	}
@@ -607,15 +607,15 @@ func TestRestoreUnreachablePrimary(t *testing.T) {
 	primary := NewFakeTablet(t, wr, "cell1", 0, topodatapb.TabletType_PRIMARY, db)
 	primary.FakeMysqlDaemon.ReadOnly = false
 	primary.FakeMysqlDaemon.Replicating = false
-	primary.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	primary.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 
 	// start primary so that replica can fetch primary position from it
 	primary.StartActionLoop(t, wr)
@@ -625,15 +625,15 @@ func TestRestoreUnreachablePrimary(t *testing.T) {
 	sourceTablet := NewFakeTablet(t, wr, "cell1", 1, topodatapb.TabletType_REPLICA, db)
 	sourceTablet.FakeMysqlDaemon.ReadOnly = true
 	sourceTablet.FakeMysqlDaemon.Replicating = true
-	sourceTablet.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	sourceTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 	sourceTablet.FakeMysqlDaemon.SetReplicationSourceInputs = []string{fmt.Sprintf("%s:%d", primary.Tablet.MysqlHostname, primary.Tablet.MysqlPort)}
 	sourceTablet.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
 		// These 3 statements come from tablet startup
@@ -667,15 +667,15 @@ func TestRestoreUnreachablePrimary(t *testing.T) {
 	destTablet := NewFakeTablet(t, wr, "cell1", 2, topodatapb.TabletType_REPLICA, db)
 	destTablet.FakeMysqlDaemon.ReadOnly = true
 	destTablet.FakeMysqlDaemon.Replicating = true
-	destTablet.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	destTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 	destTablet.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
 		// These 3 statements come from tablet startup
 		"STOP SLAVE",
@@ -693,7 +693,7 @@ func TestRestoreUnreachablePrimary(t *testing.T) {
 		"RESET MASTER":           {},
 		"SET GLOBAL gtid_purged": {},
 	}
-	destTablet.FakeMysqlDaemon.SetReplicationPositionPos = sourceTablet.FakeMysqlDaemon.CurrentPrimaryPosition
+	destTablet.FakeMysqlDaemon.SetReplicationPositionPos = sourceTablet.FakeMysqlDaemon.GetPrimaryPositionLocked()
 	destTablet.FakeMysqlDaemon.SetReplicationSourceInputs = append(destTablet.FakeMysqlDaemon.SetReplicationSourceInputs, topoproto.MysqlAddr(primary.Tablet))
 
 	destTablet.StartActionLoop(t, wr)
@@ -782,15 +782,15 @@ func TestDisableActiveReparents(t *testing.T) {
 	primary := NewFakeTablet(t, wr, "cell1", 0, topodatapb.TabletType_PRIMARY, db)
 	primary.FakeMysqlDaemon.ReadOnly = false
 	primary.FakeMysqlDaemon.Replicating = false
-	primary.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	primary.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 
 	// start primary so that replica can fetch primary position from it
 	primary.StartActionLoop(t, wr)
@@ -801,15 +801,15 @@ func TestDisableActiveReparents(t *testing.T) {
 	sourceTablet := NewFakeTablet(t, wr, "cell1", 1, topodatapb.TabletType_REPLICA, db)
 	sourceTablet.FakeMysqlDaemon.ReadOnly = true
 	sourceTablet.FakeMysqlDaemon.Replicating = true
-	sourceTablet.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	sourceTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 	sourceTablet.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
 		"STOP SLAVE",
 	}
@@ -834,15 +834,15 @@ func TestDisableActiveReparents(t *testing.T) {
 	destTablet := NewFakeTablet(t, wr, "cell1", 2, topodatapb.TabletType_REPLICA, db)
 	destTablet.FakeMysqlDaemon.ReadOnly = true
 	destTablet.FakeMysqlDaemon.Replicating = true
-	destTablet.FakeMysqlDaemon.CurrentPrimaryPosition = replication.Position{
+	destTablet.FakeMysqlDaemon.SetPrimaryPositionLocked(replication.Position{
 		GTIDSet: replication.MariadbGTIDSet{
 			2: replication.MariadbGTID{
 				Domain:   2,
 				Server:   123,
 				Sequence: 457,
 			},
 		},
-	}
+	})
 	destTablet.FakeMysqlDaemon.ExpectedExecuteSuperQueryList = []string{
 		"STOP SLAVE",
 		"RESET SLAVE ALL",
@@ -853,7 +853,7 @@ func TestDisableActiveReparents(t *testing.T) {
 		"RESET MASTER":           {},
 		"SET GLOBAL gtid_purged": {},
 	}
-	destTablet.FakeMysqlDaemon.SetReplicationPositionPos = sourceTablet.FakeMysqlDaemon.CurrentPrimaryPosition
+	destTablet.FakeMysqlDaemon.SetReplicationPositionPos = sourceTablet.FakeMysqlDaemon.GetPrimaryPositionLocked()
 	destTablet.FakeMysqlDaemon.SetReplicationSourceInputs = append(destTablet.FakeMysqlDaemon.SetReplicationSourceInputs, topoproto.MysqlAddr(primary.Tablet))
 
 	destTablet.StartActionLoop(t, wr)