// CopyKeyspaces will create the keyspaces in the destination topo
func CopyKeyspaces(fromTS, toTS topo.Server) {
keyspaces, err := fromTS.GetKeyspaces()
if err != nil {
log.Fatalf("GetKeyspaces: %v", err)
}
wg := sync.WaitGroup{}
rec := concurrency.AllErrorRecorder{}
for _, keyspace := range keyspaces {
wg.Add(1)
go func(keyspace string) {
defer wg.Done()
k, err := fromTS.GetKeyspace(keyspace)
if err != nil {
rec.RecordError(fmt.Errorf("GetKeyspace(%v): %v", keyspace, err))
return
}
if err := toTS.CreateKeyspace(keyspace, k.Keyspace); err != nil {
if err == topo.ErrNodeExists {
log.Warningf("keyspace %v already exists", keyspace)
} else {
rec.RecordError(fmt.Errorf("CreateKeyspace(%v): %v", keyspace, err))
}
}
}(keyspace)
}
wg.Wait()
if rec.HasErrors() {
log.Fatalf("copyKeyspaces failed: %v", rec.Error())
}
}
func CheckKeyspace(t *testing.T, ts topo.Server) {
keyspaces, err := ts.GetKeyspaces()
if err != nil {
t.Errorf("GetKeyspaces(empty): %v", err)
}
if len(keyspaces) != 0 {
t.Errorf("len(GetKeyspaces()) != 0: %v", keyspaces)
}
if err := ts.CreateKeyspace("test_keyspace", &topo.Keyspace{}); err != nil {
t.Errorf("CreateKeyspace: %v", err)
}
if err := ts.CreateKeyspace("test_keyspace", &topo.Keyspace{}); err != topo.ErrNodeExists {
t.Errorf("CreateKeyspace(again) is not ErrNodeExists: %v", err)
}
keyspaces, err = ts.GetKeyspaces()
if err != nil {
t.Errorf("GetKeyspaces: %v", err)
}
if len(keyspaces) != 1 || keyspaces[0] != "test_keyspace" {
t.Errorf("GetKeyspaces: want %v, got %v", []string{"test_keyspace"}, keyspaces)
}
k := &topo.Keyspace{
ShardingColumnName: "user_id",
ShardingColumnType: key.KIT_UINT64,
ServedFromMap: map[topo.TabletType]*topo.KeyspaceServedFrom{
topo.TYPE_REPLICA: &topo.KeyspaceServedFrom{
Cells: []string{"c1", "c2"},
Keyspace: "test_keyspace3",
},
topo.TYPE_MASTER: &topo.KeyspaceServedFrom{
Cells: nil,
Keyspace: "test_keyspace3",
},
},
SplitShardCount: 64,
}
if err := ts.CreateKeyspace("test_keyspace2", k); err != nil {
t.Errorf("CreateKeyspace: %v", err)
}
keyspaces, err = ts.GetKeyspaces()
if err != nil {
t.Errorf("GetKeyspaces: %v", err)
}
if len(keyspaces) != 2 ||
keyspaces[0] != "test_keyspace" ||
keyspaces[1] != "test_keyspace2" {
t.Errorf("GetKeyspaces: want %v, got %v", []string{"test_keyspace", "test_keyspace2"}, keyspaces)
}
ki, err := ts.GetKeyspace("test_keyspace2")
if err != nil {
t.Fatalf("GetKeyspace: %v", err)
}
if !reflect.DeepEqual(ki.Keyspace, k) {
t.Fatalf("returned keyspace doesn't match: got %v expected %v", ki.Keyspace, k)
}
ki.ShardingColumnName = "other_id"
ki.ShardingColumnType = key.KIT_BYTES
delete(ki.ServedFromMap, topo.TYPE_MASTER)
ki.ServedFromMap[topo.TYPE_REPLICA].Keyspace = "test_keyspace4"
err = topo.UpdateKeyspace(ts, ki)
if err != nil {
t.Fatalf("UpdateKeyspace: %v", err)
}
ki, err = ts.GetKeyspace("test_keyspace2")
if err != nil {
t.Fatalf("GetKeyspace: %v", err)
}
if ki.ShardingColumnName != "other_id" ||
ki.ShardingColumnType != key.KIT_BYTES ||
ki.ServedFromMap[topo.TYPE_REPLICA].Keyspace != "test_keyspace4" {
t.Errorf("GetKeyspace: unexpected keyspace, got %v", *ki)
}
}