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MetricsCollector

Struct MetricsCollector 

Source
pub struct MetricsCollector {
Show 32 fields pub queries_total: AtomicU64, pub queries_success: AtomicU64, pub queries_error: AtomicU64, pub queries_duration_us: AtomicU64, pub db_queries_total: AtomicU64, pub db_queries_duration_us: AtomicU64, pub validation_errors_total: AtomicU64, pub parse_errors_total: AtomicU64, pub execution_errors_total: AtomicU64, pub http_requests_total: AtomicU64, pub http_responses_2xx: AtomicU64, pub http_responses_4xx: AtomicU64, pub http_responses_5xx: AtomicU64, pub cache_hits: AtomicU64, pub cache_misses: AtomicU64, pub federation_entity_resolutions_total: AtomicU64, pub federation_entity_resolutions_errors: AtomicU64, pub federation_entity_resolution_duration_us: AtomicU64, pub federation_subgraph_requests_total: AtomicU64, pub federation_subgraph_requests_errors: AtomicU64, pub federation_subgraph_request_duration_us: AtomicU64, pub federation_mutations_total: AtomicU64, pub federation_mutations_errors: AtomicU64, pub federation_mutation_duration_us: AtomicU64, pub federation_entity_cache_hits: AtomicU64, pub federation_entity_cache_misses: AtomicU64, pub federation_errors_total: AtomicU64, pub operation_metrics: Arc<OperationMetricsRegistry>, pub http_request_duration: Arc<Histogram>, pub db_query_duration: Arc<Histogram>, pub schema_reloads_total: AtomicU64, pub schema_reload_errors_total: AtomicU64,
}
Expand description

Metrics collector for the server.

All atomic counters are bare AtomicU64; the collector itself is wrapped in Arc<MetricsCollector> at every use site (see AppState::metrics). The previous per-field Arc<AtomicU64> was a redundant second indirection that bloated the struct to ~30 cache lines and made construction 30 atomic refcount bumps (F009). Call sites are unchanged — metrics.foo.fetch_add(...) resolves to a single Arc deref + atomic op.

Fields§

§queries_total: AtomicU64

Total GraphQL queries executed

§queries_success: AtomicU64

Total successful queries

§queries_error: AtomicU64

Total failed queries

§queries_duration_us: AtomicU64

Total query execution time (microseconds)

§db_queries_total: AtomicU64

Total database queries executed

§db_queries_duration_us: AtomicU64

Total database query time (microseconds)

§validation_errors_total: AtomicU64

Total validation errors

§parse_errors_total: AtomicU64

Total parse errors

§execution_errors_total: AtomicU64

Total execution errors

§http_requests_total: AtomicU64

Total HTTP requests

§http_responses_2xx: AtomicU64

Total HTTP 2xx responses

§http_responses_4xx: AtomicU64

Total HTTP 4xx responses

§http_responses_5xx: AtomicU64

Total HTTP 5xx responses

§cache_hits: AtomicU64

Cache hits

§cache_misses: AtomicU64

Cache misses

§federation_entity_resolutions_total: AtomicU64

Federation entity resolutions (total)

§federation_entity_resolutions_errors: AtomicU64

Federation entity resolutions (errors)

§federation_entity_resolution_duration_us: AtomicU64

Federation entity resolution duration (microseconds)

§federation_subgraph_requests_total: AtomicU64

Federation subgraph requests (total)

§federation_subgraph_requests_errors: AtomicU64

Federation subgraph requests (errors)

§federation_subgraph_request_duration_us: AtomicU64

Federation subgraph request duration (microseconds)

§federation_mutations_total: AtomicU64

Federation mutations (total)

§federation_mutations_errors: AtomicU64

Federation mutations (errors)

§federation_mutation_duration_us: AtomicU64

Federation mutation duration (microseconds)

§federation_entity_cache_hits: AtomicU64

Federation entity cache hits

§federation_entity_cache_misses: AtomicU64

Federation entity cache misses

§federation_errors_total: AtomicU64

Federation errors

§operation_metrics: Arc<OperationMetricsRegistry>

Per-operation metrics (histogram + error counter).

Kept behind Arc because the registry is shared with other long-lived readers (export endpoints) that need to hold a clone independently.

§http_request_duration: Arc<Histogram>

HTTP request duration histogram (shared with export endpoints).

§db_query_duration: Arc<Histogram>

Database query duration histogram (shared with export endpoints).

§schema_reloads_total: AtomicU64

Total successful schema reloads

§schema_reload_errors_total: AtomicU64

Total failed schema reload attempts

Implementations§

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impl MetricsCollector

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pub fn new() -> Self

Create new metrics collector.

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impl MetricsCollector

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pub fn record_entity_resolution(&self, duration_us: u64, success: bool)

Record entity resolution completion (all strategies).

§Arguments
  • duration_us - Resolution duration in microseconds
  • success - Whether resolution succeeded
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pub fn record_subgraph_request(&self, duration_us: u64, success: bool)

Record subgraph request completion.

§Arguments
  • duration_us - Request duration in microseconds
  • success - Whether request succeeded (HTTP 2xx)
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pub fn record_mutation(&self, duration_us: u64, success: bool)

Record federation mutation execution.

§Arguments
  • duration_us - Mutation duration in microseconds
  • success - Whether mutation succeeded
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pub fn record_entity_cache_hit(&self)

Record entity cache hit.

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pub fn record_entity_cache_miss(&self)

Record entity cache miss.

Trait Implementations§

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impl Debug for MetricsCollector

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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 MetricsCollector

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fn default() -> MetricsCollector

Returns the “default value” for a type. Read more
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impl From<&MetricsCollector> for PrometheusMetrics

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fn from(collector: &MetricsCollector) -> Self

Converts to this type from the input type.

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