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Prometheus metrics for RPC calls (#7088)

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* WS and HTTP middlewares added

* Prometheus endpoint added

* Counters renamed

* Proper style for inc

* Metrics initialization re-written

* Rework to handler middleware

* Introduce transport prefix for metrics

* String shortened

* Commented code removed, new line inserted

* One more string shortened

* Wasm build fixed

* Wasm build fixed once again

* Rework to shared metrics

* Added collectors label

* Tilde removed from cargo

* Switch to owned metrics in parameters
This commit is contained in:
Anton Gavrilov
2020-09-18 15:15:19 +02:00
committed by GitHub
parent 22ea00a169
commit 2c5a82f8f1
6 changed files with 157 additions and 29 deletions
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substrate/client/service/src/lib.rs
+29 -9
View File
@@ -97,7 +97,7 @@ impl<T> MallocSizeOfWasm for T {}
/// RPC handlers that can perform RPC queries.
#[derive(Clone)]
pub struct RpcHandlers(Arc<jsonrpc_core::MetaIoHandler<sc_rpc::Metadata>>);
pub struct RpcHandlers(Arc<jsonrpc_core::MetaIoHandler<sc_rpc::Metadata, sc_rpc_server::RpcMiddleware>>);
impl RpcHandlers {
/// Starts an RPC query.
@@ -118,7 +118,8 @@ impl RpcHandlers {
}
/// Provides access to the underlying `MetaIoHandler`
pub fn io_handler(&self) -> Arc<jsonrpc_core::MetaIoHandler<sc_rpc::Metadata>> {
pub fn io_handler(&self)
-> Arc<jsonrpc_core::MetaIoHandler<sc_rpc::Metadata, sc_rpc_server::RpcMiddleware>> {
self.0.clone()
}
}
@@ -382,9 +383,13 @@ mod waiting {
/// Starts RPC servers that run in their own thread, and returns an opaque object that keeps them alive.
#[cfg(not(target_os = "unknown"))]
fn start_rpc_servers<H: FnMut(sc_rpc::DenyUnsafe) -> sc_rpc_server::RpcHandler<sc_rpc::Metadata>>(
fn start_rpc_servers<
H: FnMut(sc_rpc::DenyUnsafe, sc_rpc_server::RpcMiddleware)
-> sc_rpc_server::RpcHandler<sc_rpc::Metadata>
>(
config: &Configuration,
mut gen_handler: H
mut gen_handler: H,
rpc_metrics: Option<&sc_rpc_server::RpcMetrics>
) -> Result<Box<dyn std::any::Any + Send + Sync>, error::Error> {
fn maybe_start_server<T, F>(address: Option<SocketAddr>, mut start: F) -> Result<Option<T>, io::Error>
where F: FnMut(&SocketAddr) -> Result<T, io::Error>,
@@ -414,13 +419,21 @@ fn start_rpc_servers<H: FnMut(sc_rpc::DenyUnsafe) -> sc_rpc_server::RpcHandler<s
}
Ok(Box::new((
config.rpc_ipc.as_ref().map(|path| sc_rpc_server::start_ipc(&*path, gen_handler(sc_rpc::DenyUnsafe::No))),
config.rpc_ipc.as_ref().map(|path| sc_rpc_server::start_ipc(
&*path, gen_handler(
sc_rpc::DenyUnsafe::No,
sc_rpc_server::RpcMiddleware::new(rpc_metrics.cloned(), "ipc")
)
)),
maybe_start_server(
config.rpc_http,
|address| sc_rpc_server::start_http(
address,
config.rpc_cors.as_ref(),
gen_handler(deny_unsafe(&address, &config.rpc_methods)),
gen_handler(
deny_unsafe(&address, &config.rpc_methods),
sc_rpc_server::RpcMiddleware::new(rpc_metrics.cloned(), "http")
),
),
)?.map(|s| waiting::HttpServer(Some(s))),
maybe_start_server(
@@ -429,7 +442,10 @@ fn start_rpc_servers<H: FnMut(sc_rpc::DenyUnsafe) -> sc_rpc_server::RpcHandler<s
address,
config.rpc_ws_max_connections,
config.rpc_cors.as_ref(),
gen_handler(deny_unsafe(&address, &config.rpc_methods)),
gen_handler(
deny_unsafe(&address, &config.rpc_methods),
sc_rpc_server::RpcMiddleware::new(rpc_metrics.cloned(), "ws")
),
),
)?.map(|s| waiting::WsServer(Some(s))),
)))
@@ -437,9 +453,13 @@ fn start_rpc_servers<H: FnMut(sc_rpc::DenyUnsafe) -> sc_rpc_server::RpcHandler<s
/// Starts RPC servers that run in their own thread, and returns an opaque object that keeps them alive.
#[cfg(target_os = "unknown")]
fn start_rpc_servers<H: FnMut(sc_rpc::DenyUnsafe) -> sc_rpc_server::RpcHandler<sc_rpc::Metadata>>(
fn start_rpc_servers<
H: FnMut(sc_rpc::DenyUnsafe, sc_rpc_server::RpcMiddleware)
-> sc_rpc_server::RpcHandler<sc_rpc::Metadata>
>(
_: &Configuration,
_: H
_: H,
_: Option<&sc_rpc_server::RpcMetrics>
) -> Result<Box<dyn std::any::Any + Send + Sync>, error::Error> {
Ok(Box::new(()))
}