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sentry: Reduce trace sample rate for download endpoint #5423

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merged 2 commits into from Nov 17, 2022
Merged

sentry: Reduce trace sample rate for download endpoint #5423

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401fa88
sentry: Implement basic `traces_sampler` function
Turbo87 Nov 5, 2022
03b0fc8
sentry: Reduce trace sample rate for download endpoint
Turbo87 Nov 5, 2022
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18 changes: 16 additions & 2 deletions src/sentry/mod.rs
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Expand Up @@ -2,7 +2,8 @@ mod middleware;

use crate::env_optional;
pub use middleware::CustomSentryMiddleware as SentryMiddleware;
use sentry::{ClientInitGuard, ClientOptions, IntoDsn};
use sentry::{ClientInitGuard, ClientOptions, IntoDsn, TransactionContext};
use std::sync::Arc;

/// Initializes the Sentry SDK from the environment variables.
///
Expand All @@ -28,13 +29,26 @@ pub fn init() -> ClientInitGuard {

let traces_sample_rate = env_optional("SENTRY_TRACES_SAMPLE_RATE").unwrap_or(0.0);

let traces_sampler = move |ctx: &TransactionContext| -> f32 {
let is_download_endpoint =
ctx.name().starts_with("/api/v1/crates/") && ctx.name().ends_with("/download");

if is_download_endpoint {
// Reduce the sample rate for the download endpoint, since we have significantly
// more traffic on that endpoint compared to the rest
traces_sample_rate / 10.
} else {
traces_sample_rate
}
};

let opts = ClientOptions {
auto_session_tracking: true,
dsn,
environment,
release,
session_mode: sentry::SessionMode::Request,
traces_sample_rate,
traces_sampler: Some(Arc::new(traces_sampler)),
..Default::default()
};

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