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Types ¶
type UpdateDMMeta ¶
type UpdateDMMeta struct {
// contains filtered or unexported fields
}
UpdateDMMeta is used to maintain the DM meta information
func NewUpdateDMMeta ¶
func NewUpdateDMMeta(cluster string, metadata *dmspec.Metadata, deletedNodesID []string) *UpdateDMMeta
NewUpdateDMMeta create i update dm meta task.
func (*UpdateDMMeta) Execute ¶
func (u *UpdateDMMeta) Execute(ctx context.Context) error
Execute implements the Task interface the metadata especially the topology is in wide use, the other callers point to this field by a pointer, so we should update the original topology directly, and don't make a copy
func (*UpdateDMMeta) Rollback ¶
func (u *UpdateDMMeta) Rollback(ctx context.Context) error
Rollback implements the Task interface
func (*UpdateDMMeta) String ¶
func (u *UpdateDMMeta) String() string
String implements the fmt.Stringer interface
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