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feat: expose total_wait_time and avg_wait_time to OpenMetrics #1528

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Merged
levkk merged 1 commit into from
Sep 11, 2026
Merged

feat: expose total_wait_time and avg_wait_time to OpenMetrics #1528

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28 changes: 28 additions & 0 deletions pgdog/src/stats/pools.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,8 @@ impl Pools {
let mut avg_idle_xact_time = vec![];
let mut total_query_time = vec![];
let mut avg_query_time = vec![];
let mut total_wait_time = vec![];
let mut avg_wait_time = vec![];
let mut total_close = vec![];
let mut avg_close = vec![];
let mut total_server_errors = vec![];
Expand Down Expand Up @@ -241,6 +243,16 @@ impl Pools {
measurement: millis(averages.query_time).into(),
});

total_wait_time.push(Measurement {
labels: labels.clone(),
measurement: millis(totals.wait_time).into(),
});

avg_wait_time.push(Measurement {
labels: labels.clone(),
measurement: millis(averages.wait_time).into(),
});

total_close.push(Measurement {
labels: labels.clone(),
measurement: totals.close.into(),
Expand Down Expand Up @@ -604,6 +616,22 @@ impl Pools {
metric_type: None,
}));

metrics.push(Metric::new(PoolMetric {
name: "total_wait_time".into(),
measurements: total_wait_time,
help: "Total time spent waiting for connection.".into(),
unit: None,
metric_type: Some("counter".into()),
}));

metrics.push(Metric::new(PoolMetric {
name: "avg_wait_time".into(),
measurements: avg_wait_time,
help: "Average time spent waiting for connection.".into(),
unit: None,
metric_type: None,
}));

metrics.push(Metric::new(PoolMetric {
name: "total_prepared_evictions".into(),
measurements: total_close,
Expand Down
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