Files
neon/proxy/src/error.rs
Conrad Ludgate 4932963bac [proxy]: dont log user errors from postgres (#12412)
## Problem

#8843 

User initiated sql queries are being classified as "postgres" errors,
whereas they're really user errors.

## Summary of changes

Classify user-initiated postgres errors as user errors if they are
related to a sql query that we ran on their behalf. Do not log those
errors.
2025-07-01 13:03:34 +00:00

85 lines
2.5 KiB
Rust

use std::fmt;
use anyhow::Context;
use measured::FixedCardinalityLabel;
use tokio::task::JoinError;
/// Marks errors that may be safely shown to a client.
/// This trait can be seen as a specialized version of [`ToString`].
///
/// NOTE: This trait should not be implemented for [`anyhow::Error`], since it
/// is way too convenient and tends to proliferate all across the codebase,
/// ultimately leading to accidental leaks of sensitive data.
pub(crate) trait UserFacingError: ReportableError {
/// Format the error for client, stripping all sensitive info.
///
/// Although this might be a no-op for many types, it's highly
/// recommended to override the default impl in case error type
/// contains anything sensitive: various IDs, IP addresses etc.
#[inline(always)]
fn to_string_client(&self) -> String {
self.to_string()
}
}
#[derive(Copy, Clone, Debug, Eq, PartialEq, FixedCardinalityLabel)]
#[label(singleton = "type")]
pub enum ErrorKind {
/// Wrong password, unknown endpoint, protocol violation, etc...
User,
/// Network error between user and proxy. Not necessarily user error
#[label(rename = "clientdisconnect")]
ClientDisconnect,
/// Proxy self-imposed user rate limits
#[label(rename = "ratelimit")]
RateLimit,
/// Proxy self-imposed service-wise rate limits
#[label(rename = "serviceratelimit")]
ServiceRateLimit,
/// Proxy quota limit violation
#[label(rename = "quota")]
Quota,
/// internal errors
Service,
/// Error communicating with control plane
#[label(rename = "controlplane")]
ControlPlane,
/// Postgres error
Postgres,
/// Error communicating with compute
Compute,
}
impl ErrorKind {
pub(crate) fn to_metric_label(self) -> &'static str {
match self {
ErrorKind::User => "user",
ErrorKind::ClientDisconnect => "clientdisconnect",
ErrorKind::RateLimit => "ratelimit",
ErrorKind::ServiceRateLimit => "serviceratelimit",
ErrorKind::Quota => "quota",
ErrorKind::Service => "service",
ErrorKind::ControlPlane => "controlplane",
ErrorKind::Postgres => "postgres",
ErrorKind::Compute => "compute",
}
}
}
pub(crate) trait ReportableError: fmt::Display + Send + 'static {
fn get_error_kind(&self) -> ErrorKind;
}
/// Flattens `Result<Result<T>>` into `Result<T>`.
pub fn flatten_err<T>(r: Result<anyhow::Result<T>, JoinError>) -> anyhow::Result<T> {
r.context("join error").and_then(|x| x)
}