resharding

Documentation

Index

• func Register()
• func WorkflowPhases() []string
• type Factory
  • func (*Factory) Init(m *workflow.Manager, w *workflowpb.Workflow, args []string) error
  • func (*Factory) Instantiate(m *workflow.Manager, w *workflowpb.Workflow, rootNode *workflow.Node) (workflow.Workflow, error)
• type ReshardingWrangler

Functions

func Register

func Register()

Register registers the HorizontalReshardingWorkflowFactory as a factory in the workflow framework.

func WorkflowPhases

func WorkflowPhases() []string

WorkflowPhases returns phases for resharding workflow

Types

type Factory

type Factory struct{}

Factory is the factory to create a horizontal resharding workflow.

func (*Factory) Init

func (*Factory) Init(m *workflow.Manager, w *workflowpb.Workflow, args []string) error

Init is part of the workflow.Factory interface.

func (*Factory) Instantiate

func (*Factory) Instantiate(m *workflow.Manager, w *workflowpb.Workflow, rootNode *workflow.Node) (workflow.Workflow, error)

Instantiate is part the workflow.Factory interface.

type ReshardingWrangler

type ReshardingWrangler interface {
	CopySchemaShardFromShard(ctx context.Context, tables, excludeTables []string, includeViews bool, sourceKeyspace, sourceShard, destKeyspace, destShard string, waitSlaveTimeout time.Duration) error

	WaitForFilteredReplication(ctx context.Context, keyspace, shard string, maxDelay time.Duration) error

	MigrateServedTypes(ctx context.Context, keyspace, shard string, cells []string, servedType topodatapb.TabletType, reverse, skipReFreshState bool, filteredReplicationWaitTime time.Duration, reverseReplication bool) error
}

ReshardingWrangler is the interface to be used in creating mock interface for wrangler, which is used for unit test. It includes a subset of the methods in go/vt/Wrangler.