Max Inden
0a2636d20c
* *: Update to libp2p v0.32.0 * Cargo.lock: Update async-tls to 0.10.2 * client/network/request_response: Adjust to new request response events * client/network/request_response.rs: Clean up silently failing responses * client/network/discovery: Lazily instantiate mdns * client/network/discovery: Exclude MdnsWrapper for target_os unknown * client/network/discovery: Fix indentation * client/network/request-response: Use LruCache to track pending resp time * client/network/request_responses: Fix early connection closed error * client/network/request-response: Replace debug_assert with debug * client/network/request-response: Fix typo * client/network/request-response: Don't emit event on send_response fail * client/network/request-response: Revert waker.wake_by_ref() * client/network/request-resp: Make duration in InboundRequest optional * client/network/req-resp: Don't emit two events for busy builder When a response builder is busy incoming requests are dropped. Previously this was reported both via a `ResponseFailure::Busy` and a `ReponseFailure::Network(InboundFailure::Omisssion)` event. With this commit the former is removed, leaving only the latter in place.
Telemetry utilities.
Calling init_telemetry registers a global slog logger using slog_scope::set_global_logger.
After that, calling slog_scope::with_logger will return a logger that sends information to
the telemetry endpoints. The telemetry! macro is a short-cut for calling
slog_scope::with_logger followed with slog_log!.
Note that you are supposed to only ever use telemetry! and not slog_scope::with_logger at
the moment. Substrate may eventually be reworked to get proper slog support, including sending
information to the telemetry.
The [Telemetry] struct implements Stream and must be polled regularly (or sent to a
background thread/task) in order for the telemetry to properly function. Dropping the object
will also deregister the global logger and replace it with a logger that discards messages.
The Stream generates [TelemetryEvent]s.
Note
: Cloning the [
Telemetry] and polling from multiple clones has an unspecified behaviour.
Example
use futures::prelude::*;
let telemetry = sc_telemetry::init_telemetry(sc_telemetry::TelemetryConfig {
endpoints: sc_telemetry::TelemetryEndpoints::new(vec![
// The `0` is the maximum verbosity level of messages to send to this endpoint.
("wss://example.com".into(), 0)
]).expect("Invalid URL or multiaddr provided"),
// Can be used to pass an external implementation of WebSockets.
wasm_external_transport: None,
});
// The `telemetry` object implements `Stream` and must be processed.
std::thread::spawn(move || {
futures::executor::block_on(telemetry.for_each(|_| future::ready(())));
});
// Sends a message on the telemetry.
sc_telemetry::telemetry!(sc_telemetry::SUBSTRATE_INFO; "test";
"foo" => "bar",
)
License: GPL-3.0-or-later WITH Classpath-exception-2.0