scatter

Documentation

Index

• func AllocNodeShards(shardTotal uint32, minNodeCount uint32, allNodes []cluster.RegisteredNode, ...) ([]storage.ShardNode, error)
• func NewProcedure(dispatch eventdispatch.Dispatch, cluster *cluster.Cluster, id uint64, ...) procedure.Procedure
• func Prepare(t *testing.T) (cluster.Manager, *cluster.Cluster)
• type Procedure
  • func (p *Procedure) Cancel(_ context.Context) error
  • func (p *Procedure) ID() uint64
  • func (p *Procedure) Start(ctx context.Context) error
  • func (p *Procedure) State() procedure.State
  • func (p *Procedure) Typ() procedure.Typ

Functions

func AllocNodeShards

func AllocNodeShards(shardTotal uint32, minNodeCount uint32, allNodes []cluster.RegisteredNode, shardIDs []storage.ShardID) ([]storage.ShardNode, error)

AllocNodeShards Allocates shard ids across the registered nodes, and caller should ensure `minNodeCount <= len(allNodes)`.

func NewProcedure

func NewProcedure(dispatch eventdispatch.Dispatch, cluster *cluster.Cluster, id uint64, shardIDs []storage.ShardID) procedure.Procedure

func Prepare

func Prepare(t *testing.T) (cluster.Manager, *cluster.Cluster)

Prepare a test cluster which has scattered shards and created test schema. Notice: sleep(5s) will be called in this function.

Types

type Procedure

type Procedure struct {
	// contains filtered or unexported fields
}

func (*Procedure) Cancel

func (p *Procedure) Cancel(_ context.Context) error

func (*Procedure) ID

func (p *Procedure) ID() uint64

func (*Procedure) Start

func (p *Procedure) Start(ctx context.Context) error

func (*Procedure) State

func (p *Procedure) State() procedure.State

func (*Procedure) Typ

func (p *Procedure) Typ() procedure.Typ