Enable the outbound rate limiter by default, and update blobs method quotas (#6093)

* Enable the outbound rate limiter by default, and update blobs method quotas.

* Lint and book updates.

beacon_node/lighthouse_network/src/rpc/config.rs

@@ -103,8 +103,13 @@ impl RateLimiterConfig {
     pub const DEFAULT_GOODBYE_QUOTA: Quota = Quota::one_every(10);
     pub const DEFAULT_BLOCKS_BY_RANGE_QUOTA: Quota = Quota::n_every(1024, 10);
     pub const DEFAULT_BLOCKS_BY_ROOT_QUOTA: Quota = Quota::n_every(128, 10);
-    pub const DEFAULT_BLOBS_BY_RANGE_QUOTA: Quota = Quota::n_every(768, 10);
+    // `BlocksByRange` and `BlobsByRange` are sent together during range sync.
-    pub const DEFAULT_BLOBS_BY_ROOT_QUOTA: Quota = Quota::n_every(128, 10);
+    // It makes sense for blocks and blobs quotas to be equivalent in terms of the number of blocks:
+    // 1024 blocks * 6 max blobs per block.
+    // This doesn't necessarily mean that we are sending this many blobs, because the quotas are
+    // measured against the maximum request size.
+    pub const DEFAULT_BLOBS_BY_RANGE_QUOTA: Quota = Quota::n_every(6144, 10);
+    pub const DEFAULT_BLOBS_BY_ROOT_QUOTA: Quota = Quota::n_every(768, 10);
     pub const DEFAULT_LIGHT_CLIENT_BOOTSTRAP_QUOTA: Quota = Quota::one_every(10);
     pub const DEFAULT_LIGHT_CLIENT_OPTIMISTIC_UPDATE_QUOTA: Quota = Quota::one_every(10);
     pub const DEFAULT_LIGHT_CLIENT_FINALITY_UPDATE_QUOTA: Quota = Quota::one_every(10);

beacon_node/src/cli.rs

@@ -372,12 +372,17 @@ pub fn cli_app() -> Command {
         .arg(
             Arg::new("self-limiter")
             .long("self-limiter")
+            .help("This flag is deprecated and has no effect.")
+            .hide(true)
+            .action(ArgAction::SetTrue)
+                .help_heading(FLAG_HEADER)
+            .display_order(0)
+        )
+        .arg(
+            Arg::new("disable-self-limiter")
+                .long("disable-self-limiter")
                 .help(
-                "Enables the outbound rate limiter (requests made by this node). \
+                    "Disables the outbound rate limiter (requests sent by this node)."
-                Use the self-limiter-protocol flag to set per protocol configurations. \
-                If the self rate limiter is enabled and a protocol is not \
-                present in the configuration, the quotas used for the inbound rate limiter will be \
-                used."
                 )
                 .action(ArgAction::SetTrue)
                 .help_heading(FLAG_HEADER)
@@ -397,7 +402,7 @@ pub fn cli_app() -> Command {
             )
             .action(ArgAction::Append)
             .value_delimiter(';')
-            .requires("self-limiter")
+            .conflicts_with("disable-self-limiter")
             .display_order(0)
         )
         .arg(

beacon_node/src/config.rs

@@ -1416,16 +1416,15 @@ pub fn set_network_config(
     // Light client server config.
     config.enable_light_client_server = parse_flag(cli_args, "light-client-server");
 
-    // The self limiter is disabled by default. If the `self-limiter` flag is provided
+    // The self limiter is enabled by default. If the `self-limiter-protocols` flag is not provided,
-    // without the `self-limiter-protocols` flag, the default params will be used.
+    // the default params will be used.
-    if parse_flag(cli_args, "self-limiter") {
+    config.outbound_rate_limiter_config = if parse_flag(cli_args, "disable-self-limiter") {
-        config.outbound_rate_limiter_config =
+        None
-            if let Some(protocols) = cli_args.get_one::<String>("self-limiter-protocols") {
+    } else if let Some(protocols) = cli_args.get_one::<String>("self-limiter-protocols") {
         Some(protocols.parse()?)
     } else {
         Some(Default::default())
     };
-    }
 
     // Proposer-only mode overrides a number of previous configuration parameters.
     // Specifically, we avoid subscribing to long-lived subnets and wish to maintain a minimal set

book/src/help_bn.md

@@ -505,6 +505,8 @@ Flags:
       --disable-quic
           Disables the quic transport. The node will rely solely on the TCP
           transport for libp2p connections.
+      --disable-self-limiter
+          Disables the outbound rate limiter (requests sent by this node).
       --disable-upnp
           Disables UPnP support. Setting this will prevent Lighthouse from
           attempting to automatically establish external port mappings.
@@ -575,12 +577,6 @@ Flags:
           When present, Lighthouse will forget the payload statuses of any
           already-imported blocks. This can assist in the recovery from a
           consensus failure caused by the execution layer.
-      --self-limiter
-          Enables the outbound rate limiter (requests made by this node). Use
-          the self-limiter-protocol flag to set per protocol configurations. If
-          the self rate limiter is enabled and a protocol is not present in the
-          configuration, the quotas used for the inbound rate limiter will be
-          used.
       --shutdown-after-sync
           Shutdown beacon node as soon as sync is completed. Backfill sync will
           not be performed before shutdown.