feat: raise fd limit of the binary (#668)

* raise fd limit of the binary

* Remove tracing and return error

* Ignore errors

Cargo.lock

@@ -1437,6 +1437,15 @@ dependencies = [
  "instant",
 ]
 
+[[package]]
+name = "fdlimit"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c4c9e43643f5a3be4ca5b67d26b98031ff9db6806c3440ae32e02e3ceac3f1b"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "ff"
 version = "0.12.1"
@@ -3415,6 +3424,7 @@ dependencies = [
  "confy",
  "dirs-next",
  "eyre",
+ "fdlimit",
  "futures",
  "metrics",
  "metrics-exporter-prometheus",

bin/reth/Cargo.toml

@@ -28,6 +28,7 @@ tracing-futures = "0.2"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 
 # io
+fdlimit = "0.2.1"
 walkdir = "2.3"
 serde = "1.0"
 serde_json = "1.0"

bin/reth/src/node/mod.rs

@@ -8,6 +8,7 @@ use crate::{
     util::chainspec::{chain_spec_value_parser, ChainSpecification, Genesis},
 };
 use clap::{crate_version, Parser};
+use fdlimit::raise_fd_limit;
 use reth_consensus::BeaconConsensus;
 use reth_db::{
     cursor::DbCursorRO,
@@ -85,6 +86,10 @@ impl Command {
     /// Execute `node` command
     // TODO: RPC
     pub async fn execute(&self) -> eyre::Result<()> {
+        // Raise the fd limit of the process.
+        // Does not do anything on windows.
+        raise_fd_limit();
+
         let config: Config = confy::load_path(&self.config).unwrap_or_default();
         info!("reth {} starting", crate_version!());