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Add VC metric for primary BN latency (#4051)

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## Issue Addressed

NA

## Proposed Changes

In #4024 we added metrics to expose the latency measurements from a VC to each BN. Whilst playing with these new metrics on our infra I realised it would be great to have a single metric to make sure that the primary BN for each VC has a reasonable latency. With the current "metrics for all BNs" it's hard to tell which is the primary.

## Additional Info

NA
This commit is contained in:
Paul Hauner
2023-03-06 04:08:49 +00:00
parent f775404c10
commit 3ad77fb52c
2 changed files with 12 additions and 2 deletions
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10
validator_client/src/latency.rs
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@@ -36,7 +36,7 @@ pub fn start_latency_service<T: SlotClock + 'static, E: EthSpec>(
// Sleep until it's time to perform the measurement.
sleep(sleep_time).await;
for measurement in beacon_nodes.measure_latency().await {
for (i, measurement) in beacon_nodes.measure_latency().await.iter().enumerate() {
if let Some(latency) = measurement.latency {
debug!(
log,
@@ -48,7 +48,13 @@ pub fn start_latency_service<T: SlotClock + 'static, E: EthSpec>(
&metrics::VC_BEACON_NODE_LATENCY,
&[&measurement.beacon_node_id],
latency,
)
);
if i == 0 {
metrics::observe_duration(
&metrics::VC_BEACON_NODE_LATENCY_PRIMARY_ENDPOINT,
latency,
);
}
}
}
}