Struct HealthCheckConfig 

pub struct HealthCheckConfig {
    pub check_type: HealthCheckType,
    pub expected_status: u16,
    pub healthy_threshold: u32,
    pub interval_ms: u64,
    pub passive_healthy_threshold: Option<u32>,
    pub passive_unhealthy_threshold: Option<u32>,
    pub path: String,
    pub timeout_ms: u64,
    pub unhealthy_threshold: u32,
}

Per-cluster health check settings (active and passive).

Active checking configures periodic probing of upstream endpoints. Passive checking observes real request outcomes (5xx responses, connection errors) to update health state.

let yaml = r#"
type: http
path: "/healthz"
expected_status: 200
interval_ms: 5000
timeout_ms: 2000
healthy_threshold: 2
unhealthy_threshold: 3
passive_unhealthy_threshold: 5
passive_healthy_threshold: 3
"#;
let hc: HealthCheckConfig = serde_yaml::from_str(yaml).unwrap();
assert_eq!(hc.check_type, HealthCheckType::Http);
assert_eq!(hc.path, "/healthz");
assert_eq!(hc.interval_ms, 5000);
assert_eq!(hc.passive_unhealthy_threshold, Some(5));
assert_eq!(hc.passive_healthy_threshold, Some(3));

Fields

check_type: HealthCheckType

Probe type: Http, Tcp, or Grpc.

expected_status: u16

Expected HTTP status code for a healthy response.

healthy_threshold: u32

Consecutive successes required to mark an endpoint healthy.

interval_ms: u64

Probe interval in milliseconds.

passive_healthy_threshold: Option<u32>

Consecutive successes to mark an endpoint healthy again via passive observation. None disables passive recovery (active checks must recover it).

passive_unhealthy_threshold: Option<u32>

Consecutive response failures (5xx or connect error) to mark an endpoint unhealthy via passive observation. None disables passive checking.

path: String

HTTP path to probe (only used for http type).

timeout_ms: u64

Probe timeout in milliseconds. Must be less than interval_ms.

unhealthy_threshold: u32

Consecutive failures required to mark an endpoint unhealthy.

Trait Implementations

impl Clone for HealthCheckConfig

fn clone(&self) -> HealthCheckConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HealthCheckConfig

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HealthCheckConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for HealthCheckConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.