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AuthorityOverloadConfig

iota_config::node

Struct AuthorityOverloadConfig 

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pub struct AuthorityOverloadConfig {
    pub max_txn_age_in_queue: Duration,
    pub overload_monitor_interval: Duration,
    pub execution_queue_latency_soft_limit: Duration,
    pub execution_queue_latency_hard_limit: Duration,
    pub max_load_shedding_percentage: u32,
    pub min_load_shedding_percentage_above_hard_limit: u32,
    pub safe_transaction_ready_rate: u32,
    pub check_system_overload_at_signing: bool,
    pub check_system_overload_at_execution: bool,
    pub max_transaction_manager_queue_length: usize,
    pub max_transaction_manager_per_object_queue_length: usize,
    pub max_transaction_manager_queue_length_soft_limit_pct: u32,
}
Expand description

Configuration for the threshold(s) at which we consider the system to be overloaded. When one of the threshold is passed, the node may stop processing new transactions and/or certificates until the congestion resolves.

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§max_txn_age_in_queue: Duration

Maximum time a transaction can wait in the transaction manager execution queue before it triggers an overload detection on the object it depends on.

§overload_monitor_interval: Duration

The interval of checking overload signal.

§execution_queue_latency_soft_limit: Duration

The execution queueing latency when entering load shedding mode.

§execution_queue_latency_hard_limit: Duration

The execution queueing latency when entering aggressive load shedding mode.

§max_load_shedding_percentage: u32

The maximum percentage of transactions to shed in load shedding mode.

§min_load_shedding_percentage_above_hard_limit: u32

When in aggressive load shedding mode, the minimum percentage of transactions to shed.

§safe_transaction_ready_rate: u32

If transaction ready rate is below this rate, we consider the validator is well under used, and will not enter load shedding mode.

§check_system_overload_at_signing: bool

When set to true, transaction signing may be rejected when the validator is overloaded.

§check_system_overload_at_execution: bool

When set to true, transaction execution may be rejected when the validator is overloaded.

§max_transaction_manager_queue_length: usize

Reject a transaction if transaction manager queue length is above this threshold. 100_000 = 10k TPS * 5s resident time in transaction manager (pending + executing) * 2.

§max_transaction_manager_per_object_queue_length: usize

Reject a transaction if the number of pending transactions depending on the object is above the threshold.

§max_transaction_manager_queue_length_soft_limit_pct: u32

Percentage of max_transaction_manager_queue_length at which graduated load shedding begins in the certificate-less (P-COOL) mode. Read via the same-named accessor, which clamps the value to <=100.

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impl AuthorityOverloadConfig

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pub fn max_transaction_manager_queue_length_soft_limit_pct(&self) -> u32

Returns the soft-limit percentage, clamped to <=100 to guard against out-of-range operator-supplied values.

Trait Implementations§

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impl Clone for AuthorityOverloadConfig

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fn clone(&self) -> AuthorityOverloadConfig

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for AuthorityOverloadConfig

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for AuthorityOverloadConfig

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for AuthorityOverloadConfig

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for AuthorityOverloadConfig

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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