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Code Issues Packages Projects Releases Wiki Activity

Report tasks metrics to Prometheus (#5619)

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Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
Pierre Krieger
2020-04-15 11:10:03 +02:00
committed by GitHub
parent b267b1728f
commit cff1390456
6 changed files with 211 additions and 42 deletions
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substrate/client/service/src/lib.rs
+13 -7
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@@ -29,7 +29,7 @@ mod builder;
mod status_sinks;
mod task_manager;
use std::{borrow::Cow, io, pin::Pin};
use std::{io, pin::Pin};
use std::marker::PhantomData;
use std::net::SocketAddr;
use std::collections::HashMap;
@@ -139,12 +139,18 @@ pub trait AbstractService: 'static + Future<Output = Result<(), Error>> +
fn telemetry(&self) -> Option<sc_telemetry::Telemetry>;
/// Spawns a task in the background that runs the future passed as parameter.
fn spawn_task(&self, name: impl Into<Cow<'static, str>>, task: impl Future<Output = ()> + Send + 'static);
///
/// Information about this task will be reported to Prometheus.
///
/// The task name is a `&'static str` as opposed to a `String`. The reason for that is that
/// in order to avoid memory consumption issues with the Prometheus metrics, the set of
/// possible task names has to be bounded.
fn spawn_task(&self, name: &'static str, task: impl Future<Output = ()> + Send + 'static);
/// Spawns a task in the background that runs the future passed as
/// parameter. The given task is considered essential, i.e. if it errors we
/// trigger a service exit.
fn spawn_essential_task(&self, name: impl Into<Cow<'static, str>>, task: impl Future<Output = ()> + Send + 'static);
fn spawn_essential_task(&self, name: &'static str, task: impl Future<Output = ()> + Send + 'static);
/// Returns a handle for spawning tasks.
fn spawn_task_handle(&self) -> SpawnTaskHandle;
@@ -220,11 +226,11 @@ where
self.keystore.clone()
}
fn spawn_task(&self, name: impl Into<Cow<'static, str>>, task: impl Future<Output = ()> + Send + 'static) {
fn spawn_task(&self, name: &'static str, task: impl Future<Output = ()> + Send + 'static) {
self.task_manager.spawn(name, task)
}
fn spawn_essential_task(&self, name: impl Into<Cow<'static, str>>, task: impl Future<Output = ()> + Send + 'static) {
fn spawn_essential_task(&self, name: &'static str, task: impl Future<Output = ()> + Send + 'static) {
let mut essential_failed = self.essential_failed_tx.clone();
let essential_task = std::panic::AssertUnwindSafe(task)
.catch_unwind()
@@ -312,8 +318,8 @@ impl<TBl, TCl, TSc, TNetStatus, TNet, TTxPool, TOc> Spawn for
&self,
future: FutureObj<'static, ()>
) -> Result<(), SpawnError> {
self.task_manager.scheduler().unbounded_send((Box::pin(future), From::from("unnamed")))
.map_err(|_| SpawnError::shutdown())
self.task_manager.spawn_handle().spawn("unnamed", future);
Ok(())
}
}