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Code Issues Releases Wiki Activity

Return recoverable error if we fail to retrieve metrics state

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This commit is contained in:
bwbonanno 2023-10-18 08:28:24 -07:00
parent 2b3adef796
commit d8c649b3cd
2 changed files with 19 additions and 8 deletions
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4
index-scheduler/src/error.rs
View File

@ -113,6 +113,8 @@ pub enum Error {
Dump(#[from] dump::Error),
#[error(transparent)]
Heed(#[from] heed::Error),
#[error("Unable to record metrics for request.")]
CannotRecordMetrics,
#[error(transparent)]
Milli(#[from] milli::Error),
#[error("An unexpected crash occurred when processing the task.")]
@ -177,6 +179,7 @@ impl Error {
| Error::TaskCancelationWithEmptyQuery
| Error::Dump(_)
| Error::Heed(_)
| Error::CannotRecordMetrics
| Error::Milli(_)
| Error::ProcessBatchPanicked
| Error::FileStore(_)
@ -223,6 +226,7 @@ impl ErrorCode for Error {
Error::Milli(e) => e.error_code(),
Error::ProcessBatchPanicked => Code::Internal,
Error::Heed(e) => e.error_code(),
Error::CannotRecordMetrics => Code::Internal,
Error::HeedTransaction(e) => e.error_code(),
Error::FileStore(e) => e.error_code(),
Error::IoError(e) => e.error_code(),

23
meilisearch/src/middleware.rs
View File

@ -6,7 +6,9 @@ use actix_web::dev::{self, Service, ServiceRequest, ServiceResponse, Transform};
use actix_web::web::Data;
use actix_web::Error;
use futures_util::future::LocalBoxFuture;
use index_scheduler::Error::CannotRecordMetrics;
use index_scheduler::IndexScheduler;
use meilisearch_types::error::ResponseError;
use prometheus::HistogramTimer;
pub struct RouteMetrics;
@ -49,15 +51,20 @@ where
fn call(&self, req: ServiceRequest) -> Self::Future {
let mut histogram_timer: Option<HistogramTimer> = None;
let data = req.app_data::<Data<IndexScheduler>>();
let metrics_enabled = data
.ok_or("Could not get index scheduler")
.and_then(|index_scheduler| {
index_scheduler.features().map_err(|_| "Could not get features")
})
.and_then(|features| features.check_metrics().map_err(|_| "Metrics not enabled"));
if let Ok(()) = metrics_enabled {
// calling unwrap here is safe because index scheduler is added to app data while creating actix app.
// also, the tests will fail if this is not present.
let index_scheduler = req.app_data::<Data<IndexScheduler>>().unwrap();
let features = match index_scheduler.features() {
Ok(features) => features,
Err(_e) => {
return Box::pin(
async move { Err(ResponseError::from(CannotRecordMetrics).into()) },
);
}
};
if features.check_metrics().is_ok() {
let request_path = req.path();
let is_registered_resource = req.resource_map().has_resource(request_path);
if is_registered_resource {