MeiliSearch/meilisearch/src/metrics.rs
2023-05-25 11:08:16 +02:00

44 lines
1.7 KiB
Rust

use lazy_static::lazy_static;
use prometheus::{
opts, register_histogram_vec, register_int_counter_vec, register_int_gauge,
register_int_gauge_vec, HistogramVec, IntCounterVec, IntGauge, IntGaugeVec,
};
/// Create evenly distributed buckets
fn create_buckets() -> [f64; 29] {
(0..10)
.chain((10..100).step_by(10))
.chain((100..=1000).step_by(100))
.map(|i| i as f64 / 1000.)
.collect::<Vec<_>>()
.try_into()
.unwrap()
}
lazy_static! {
pub static ref HTTP_RESPONSE_TIME_CUSTOM_BUCKETS: [f64; 29] = create_buckets();
pub static ref HTTP_REQUESTS_TOTAL: IntCounterVec = register_int_counter_vec!(
opts!("http_requests_total", "HTTP requests total"),
&["method", "path"]
)
.expect("Can't create a metric");
pub static ref MEILISEARCH_DB_SIZE_BYTES: IntGauge =
register_int_gauge!(opts!("meilisearch_db_size_bytes", "Meilisearch Db Size In Bytes"))
.expect("Can't create a metric");
pub static ref MEILISEARCH_INDEX_COUNT: IntGauge =
register_int_gauge!(opts!("meilisearch_index_count", "Meilisearch Index Count"))
.expect("Can't create a metric");
pub static ref MEILISEARCH_INDEX_DOCS_COUNT: IntGaugeVec = register_int_gauge_vec!(
opts!("meilisearch_index_docs_count", "Meilisearch Index Docs Count"),
&["index"]
)
.expect("Can't create a metric");
pub static ref HTTP_RESPONSE_TIME_SECONDS: HistogramVec = register_histogram_vec!(
"http_response_time_seconds",
"HTTP response times",
&["method", "path"],
HTTP_RESPONSE_TIME_CUSTOM_BUCKETS.to_vec()
)
.expect("Can't create a metric");
}