ServerMetrics

turbomcp_server::metrics

Struct ServerMetrics 

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pub struct ServerMetrics {
Show 23 fields
    pub requests_total: AtomicU64,
    pub requests_successful: AtomicU64,
    pub requests_failed: AtomicU64,
    pub requests_in_flight: AtomicU64,
    pub errors_total: AtomicU64,
    pub errors_validation: AtomicU64,
    pub errors_auth: AtomicU64,
    pub errors_network: AtomicU64,
    pub errors_timeout: AtomicU64,
    pub total_response_time_us: AtomicU64,
    pub min_response_time_us: AtomicU64,
    pub max_response_time_us: AtomicU64,
    pub tool_calls_total: AtomicU64,
    pub tool_calls_successful: AtomicU64,
    pub tool_calls_failed: AtomicU64,
    pub connections_active: AtomicU64,
    pub connections_total: AtomicU64,
    pub connections_rejected: AtomicU64,
    pub memory_usage_bytes: AtomicU64,
    pub cpu_usage_percent_x100: AtomicU64,
    pub custom: RwLock<HashMap<String, f64>>,
    pub response_time_buckets: ResponseTimeHistogram,
    pub start_time: Instant,

}
Expand description

Production-grade server metrics collector with lock-free atomic operations

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§requests_total: AtomicU64

Total number of requests received since server start

§requests_successful: AtomicU64

Number of requests that completed successfully

§requests_failed: AtomicU64

Number of requests that failed with errors

§requests_in_flight: AtomicU64

Number of requests currently being processed

§errors_total: AtomicU64

Total number of errors across all categories

§errors_validation: AtomicU64

Number of validation/schema errors

§errors_auth: AtomicU64

Number of authentication/authorization errors

§errors_network: AtomicU64

Number of network-related errors

§errors_timeout: AtomicU64

Number of timeout errors

§total_response_time_us: AtomicU64

Sum of all response times in microseconds

§min_response_time_us: AtomicU64

Minimum response time observed (microseconds)

§max_response_time_us: AtomicU64

Maximum response time observed (microseconds)

§tool_calls_total: AtomicU64

Total number of tool calls initiated

§tool_calls_successful: AtomicU64

Number of tool calls that completed successfully

§tool_calls_failed: AtomicU64

Number of tool calls that failed

§connections_active: AtomicU64

Number of currently active connections

§connections_total: AtomicU64

Total connections accepted since server start

§connections_rejected: AtomicU64

Number of connections rejected (rate limiting, etc.)

§memory_usage_bytes: AtomicU64

Current memory usage in bytes

§cpu_usage_percent_x100: AtomicU64

Current CPU usage as percentage × 100 (due to no AtomicF64)

§custom: RwLock<HashMap<String, f64>>

Custom application-specific metrics (rare updates, RwLock acceptable)

§response_time_buckets: ResponseTimeHistogram

Response time histogram for latency distribution analysis

§start_time: Instant

Server start time for uptime calculation

Implementations§

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impl ServerMetrics

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pub fn new() -> Self

Create production-grade metrics collector with comprehensive initialization

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pub fn record_request_start(&self)

Record request start with zero-allocation tracking

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pub fn record_request_success(&self, duration: Duration)

Record successful request completion with timing

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pub fn record_request_failure(&self, error_type: &str, duration: Duration)

Record failed request with error categorization

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pub fn record_tool_call(&self, success: bool)

Record tool call metrics with comprehensive tracking

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pub fn record_connection_established(&self)

Update connection metrics with proper lifecycle tracking

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pub fn record_connection_closed(&self)

Record when a connection is closed/terminated

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pub fn record_connection_rejected(&self)

Record when a connection is rejected due to rate limiting or other policies

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pub fn update_resource_metrics(&self, memory_bytes: u64, cpu_percent: f64)

Update resource metrics (called periodically by monitoring task)

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pub fn record_custom(&self, name: &str, value: f64)

Record custom metric (infrequent operation, lock acceptable)

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pub fn uptime_seconds(&self) -> u64

Calculate uptime in seconds

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pub fn avg_response_time_us(&self) -> f64

Calculate average response time in microseconds

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pub fn request_rate(&self) -> f64

Calculate request rate (requests per second)

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pub fn error_rate_percent(&self) -> f64

Calculate error rate as percentage

Trait Implementations§

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impl Debug for ServerMetrics

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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 ServerMetrics

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fn default() -> Self

Returns the “default value” for a type. Read more

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