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constants.go
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constants.go
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package process
import "time"
// BlockHeaderState specifies which is the state of the block header received
type BlockHeaderState int
const (
// BHReceived defines ID of a received block header
BHReceived BlockHeaderState = iota
// BHReceivedTooLate defines ID of a late received block header
BHReceivedTooLate
// BHProcessed defines ID of a processed block header
BHProcessed
// BHProposed defines ID of a proposed block header
BHProposed
// BHNotarized defines ID of a notarized block header
BHNotarized
)
// TransactionType specifies the type of the transaction
type TransactionType int
const (
// MoveBalance defines ID of a payment transaction - moving balances
MoveBalance TransactionType = iota
// SCDeployment defines ID of a transaction to store a smart contract
SCDeployment
// SCInvoking defines ID of a transaction of type smart contract call
SCInvoking
// BuiltInFunctionCall defines ID of a builtin function call
BuiltInFunctionCall
// RelayedTx defines ID of a transaction of type relayed
RelayedTx
// RelayedTxV2 defines the ID of a slim relayed transaction version
RelayedTxV2
// RewardTx defines ID of a reward transaction
RewardTx
// InvalidTransaction defines unknown transaction type
InvalidTransaction
)
// BlockFinality defines the block finality which is used in meta-chain/shards (the real finality in shards is given
// by meta-chain)
const BlockFinality = 1
// MetaBlockValidity defines the block validity which is when checking a metablock
const MetaBlockValidity = 1
// EpochChangeGracePeriod defines the allowed round numbers till the shard has to change the epoch
const EpochChangeGracePeriod = 1
// MaxHeaderRequestsAllowed defines the maximum number of missing cross-shard headers (gaps) which could be requested
// in one round, when node processes a received block
const MaxHeaderRequestsAllowed = 20
// NumTxPerSenderBatchForFillingMiniblock defines the number of transactions to be drawn
// from the transactions pool, for a specific sender, in a single pass.
// Drawing transactions for a miniblock happens in multiple passes, until "MaxItemsInBlock" are drawn.
const NumTxPerSenderBatchForFillingMiniblock = 10
// NonceDifferenceWhenSynced defines the difference between probable highest nonce seen from network and node's last
// committed block nonce, after which, node is considered himself not synced
const NonceDifferenceWhenSynced = 0
// MaxSyncWithErrorsAllowed defines the maximum allowed number of sync with errors,
// before a special action to be applied
const MaxSyncWithErrorsAllowed = 10
// MaxHeadersToRequestInAdvance defines the maximum number of headers which will be requested in advance,
// if they are missing
const MaxHeadersToRequestInAdvance = 20
// RoundModulusTrigger defines a round modulus on which a trigger for an action will be released
const RoundModulusTrigger = 5
// RoundModulusTriggerWhenSyncIsStuck defines a round modulus on which a trigger for an action when sync is stuck will be released
const RoundModulusTriggerWhenSyncIsStuck = 20
// MaxRoundsWithoutCommittedBlock defines the maximum rounds to wait for a new block to be committed,
// before a special action to be applied
const MaxRoundsWithoutCommittedBlock = 10
// MinForkRound represents the minimum fork round set by a notarized header received
const MinForkRound = uint64(0)
// MaxMetaNoncesBehind defines the maximum difference between the current meta block nonce and the processed meta block
// nonce before a shard is considered stuck
const MaxMetaNoncesBehind = 15
// MaxMetaNoncesBehindForGlobalStuck defines the maximum difference between the current meta block nonce and the processed
// meta block nonce for any shard, where the chain is considered stuck and enters recovery
const MaxMetaNoncesBehindForGlobalStuck = 30
// MaxShardNoncesBehind defines the maximum difference between the current shard block nonce and the last notarized
// shard block nonce by meta, before meta is considered stuck
const MaxShardNoncesBehind = 15
// MaxRoundsWithoutNewBlockReceived defines the maximum number of rounds to wait for a new block to be received,
// before a special action to be applied
const MaxRoundsWithoutNewBlockReceived = 10
// MaxMetaHeadersAllowedInOneShardBlock defines the maximum number of meta headers allowed to be included in one shard block
const MaxMetaHeadersAllowedInOneShardBlock = 50
// MaxShardHeadersAllowedInOneMetaBlock defines the maximum number of shard headers allowed to be included in one meta block
const MaxShardHeadersAllowedInOneMetaBlock = 60
// MinShardHeadersFromSameShardInOneMetaBlock defines the minimum number of shard headers from the same shard,
// which would be included in one meta block if they are available
const MinShardHeadersFromSameShardInOneMetaBlock = 10
// MaxNumOfTxsToSelect defines the maximum number of transactions that should be selected from the cache
const MaxNumOfTxsToSelect = 30000
// MaxGasBandwidthPerBatchPerSender defines the maximum gas bandwidth that should be selected for a sender per batch from the cache
const MaxGasBandwidthPerBatchPerSender = 5000000
// MaxRoundsToKeepUnprocessedMiniBlocks defines the maximum number of rounds for which unprocessed miniblocks are kept in pool
// TODO extract this in configs (EN-11896)
const MaxRoundsToKeepUnprocessedMiniBlocks = 300
// MaxRoundsToKeepUnprocessedTransactions defines the maximum number of rounds for which unprocessed transactions are kept in pool
// TODO extract this in configs (EN-11896)
const MaxRoundsToKeepUnprocessedTransactions = 300
// MaxHeadersToWhitelistInAdvance defines the maximum number of headers whose miniblocks will be whitelisted in advance
const MaxHeadersToWhitelistInAdvance = 300
// MaxGasFeeHigherFactorAccepted defines the maximum higher factor of gas fee put inside a transaction compared with
// the real gas used, after which the transaction will be considered an attack and all the gas will be consumed and
// nothing will be refunded to the sender
const MaxGasFeeHigherFactorAccepted = 10
// TimeDurationMultiplierForProcessBlockWhenSync represents the constant that will be multiplied with the round duration
// when considering the maximum available time window for block processing when syncing blocks
const TimeDurationMultiplierForProcessBlockWhenSync = time.Duration(2)