Oliver Tale-Yazdi
e80c24733f
Changes (partial https://github.com/paritytech/polkadot-sdk/issues/994): - Set log to `0.4.20` everywhere - Lift `log` to the workspace Starting with a simpler one after seeing https://github.com/paritytech/polkadot-sdk/pull/2065 from @jsdw. This sets the `default-features` to `false` in the root and then overwrites that in each create to its original value. This is necessary since otherwise the `default` features are additive and its impossible to disable them in the crate again once they are enabled in the workspace. I am using a tool to do this, so its mostly a test to see that it works as expected. --------- Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
sc-telemetry
Substrate's client telemetry is a part of Substrate that allows ingesting telemetry data with for example Polkadot telemetry.
It works using Tokio's tracing library. The telemetry
information uses tracing's logging to report the telemetry data which is then retrieved by a
tracing Layer. This layer will then send the data through an asynchronous channel to a
background task called [TelemetryWorker] which will send the information to the configured
remote telemetry servers.
If multiple Substrate nodes are running in the same process, it uses a tracing::Span to
identify which Substrate node is reporting the telemetry. Every task spawned using sc-service's
TaskManager automatically inherit this span.
Substrate's nodes initialize/register with the [TelemetryWorker] using a [TelemetryHandle].
This handle can be cloned and passed around. It uses an asynchronous channel to communicate with
the running [TelemetryWorker] dedicated to registration. Registering can happen at any point
in time during the process execution.
License: GPL-3.0-or-later WITH Classpath-exception-2.0