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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| use crate::cluster_info::ClusterInfo; | ||
| use solana_sdk::pubkey::Pubkey; | ||
| use std::{ | ||
| collections::HashSet, | ||
| sync::atomic::{AtomicBool, Ordering}, | ||
| sync::Arc, | ||
| }; | ||
|
|
||
| pub enum RpcHealthStatus { | ||
| Ok, | ||
| Behind, // Validator is behind its trusted validators | ||
| } | ||
|
|
||
| pub struct RpcHealth { | ||
| cluster_info: Arc<ClusterInfo>, | ||
| trusted_validators: Option<HashSet<Pubkey>>, | ||
| health_check_slot_distance: u64, | ||
| override_health_check: Arc<AtomicBool>, | ||
| } | ||
|
|
||
| impl RpcHealth { | ||
| pub fn new( | ||
| cluster_info: Arc<ClusterInfo>, | ||
| trusted_validators: Option<HashSet<Pubkey>>, | ||
| health_check_slot_distance: u64, | ||
| override_health_check: Arc<AtomicBool>, | ||
| ) -> Self { | ||
| Self { | ||
| cluster_info, | ||
| trusted_validators, | ||
| health_check_slot_distance, | ||
| override_health_check, | ||
| } | ||
| } | ||
|
|
||
| pub fn check(&self) -> RpcHealthStatus { | ||
| if self.override_health_check.load(Ordering::Relaxed) { | ||
| RpcHealthStatus::Ok | ||
| } else if let Some(trusted_validators) = &self.trusted_validators { | ||
| let (latest_account_hash_slot, latest_trusted_validator_account_hash_slot) = { | ||
| ( | ||
| self.cluster_info | ||
| .get_accounts_hash_for_node(&self.cluster_info.id(), |hashes| { | ||
| hashes | ||
| .iter() | ||
| .max_by(|a, b| a.0.cmp(&b.0)) | ||
| .map(|slot_hash| slot_hash.0) | ||
| }) | ||
| .flatten() | ||
| .unwrap_or(0), | ||
| trusted_validators | ||
| .iter() | ||
| .map(|trusted_validator| { | ||
| self.cluster_info | ||
| .get_accounts_hash_for_node(&trusted_validator, |hashes| { | ||
| hashes | ||
| .iter() | ||
| .max_by(|a, b| a.0.cmp(&b.0)) | ||
| .map(|slot_hash| slot_hash.0) | ||
| }) | ||
| .flatten() | ||
| .unwrap_or(0) | ||
| }) | ||
| .max() | ||
| .unwrap_or(0), | ||
| ) | ||
| }; | ||
|
|
||
| // This validator is considered healthy if its latest account hash slot is within | ||
| // `health_check_slot_distance` of the latest trusted validator's account hash slot | ||
| if latest_account_hash_slot > 0 | ||
| && latest_trusted_validator_account_hash_slot > 0 | ||
| && latest_account_hash_slot | ||
| > latest_trusted_validator_account_hash_slot | ||
| .saturating_sub(self.health_check_slot_distance) | ||
| { | ||
| RpcHealthStatus::Ok | ||
| } else { | ||
| warn!( | ||
| "health check: me={}, latest trusted_validator={}", | ||
| latest_account_hash_slot, latest_trusted_validator_account_hash_slot | ||
| ); | ||
| RpcHealthStatus::Behind | ||
| } | ||
| } else { | ||
| // No trusted validator point of reference available, so this validator is healthy | ||
| // because it's running | ||
| RpcHealthStatus::Ok | ||
| } | ||
| } | ||
| } |
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