requester

Documentation

Index

• Constants
• func New(log zerolog.Logger, edrMetrics module.ExecutionDataRequesterMetrics, ...) state_synchronization.ExecutionDataRequester
• type ExecutionDataConfig

Constants

const (
	// DefaultFetchTimeout is the default initial timeout for fetching ExecutionData from the
	// db/network. The timeout is increased using an incremental backoff until FetchTimeout.
	DefaultFetchTimeout = 10 * time.Second

	// DefaultMaxFetchTimeout is the default timeout for fetching ExecutionData from the db/network
	DefaultMaxFetchTimeout = 10 * time.Minute

	// DefaultRetryDelay is the default initial delay used in the exponential backoff for failed
	// ExecutionData download retries
	DefaultRetryDelay = 1 * time.Second

	// DefaultMaxRetryDelay is the default maximum delay used in the exponential backoff for failed
	// ExecutionData download retries
	DefaultMaxRetryDelay = 5 * time.Minute

	// DefaultMaxSearchAhead is the default max number of unsent notifications to allow before
	// pausing new fetches.
	DefaultMaxSearchAhead = 5000
)

Functions

func New

func New(
	log zerolog.Logger,
	edrMetrics module.ExecutionDataRequesterMetrics,
	eds state_synchronization.ExecutionDataService,
	processedHeight storage.ConsumerProgress,
	processedNotifications storage.ConsumerProgress,
	state protocol.State,
	headers storage.Headers,
	results storage.ExecutionResults,
	seals storage.Seals,
	cfg ExecutionDataConfig,
) state_synchronization.ExecutionDataRequester

New creates a new execution data requester component

Types

type ExecutionDataConfig

type ExecutionDataConfig struct {
	// The initial value to use as the last processed block height. This should be the
	// first block height to sync - 1
	InitialBlockHeight uint64

	// Max number of unsent notifications to allow before pausing new fetches. After exceeding this
	// limit, the requester will stop processing new finalized block notifications. This prevents
	// unbounded memory use by the requester if it gets stuck fetching a specific height.
	MaxSearchAhead uint64

	// The initial timeout for fetching ExecutionData from the db/network
	FetchTimeout time.Duration

	// The max timeout for fetching ExecutionData from the db/network
	MaxFetchTimeout time.Duration

	// Exponential backoff settings for download retries
	RetryDelay    time.Duration
	MaxRetryDelay time.Duration
}

ExecutionDataConfig contains configuration options for the ExecutionDataRequester