Implement tracing spans for data columm RPC requests and responses (#7831)

#7830

beacon_node/lighthouse_tracing/Cargo.toml

@@ -0,0 +1,4 @@
+[package]
+name = "lighthouse_tracing"
+version = "0.1.0"
+edition = { workspace = true }

beacon_node/lighthouse_tracing/src/lib.rs

@@ -0,0 +1,61 @@
+//! This module contains root span identifiers for key code paths in the beacon node.
+//!
+//! TODO: These span identifiers will be used to implement selective tracing export (to be implemented),
+//! where only the listed root spans and their descendants will be exported to the tracing backend.
+
+/// Data Availability checker span identifiers
+pub const SPAN_PENDING_COMPONENTS: &str = "pending_components";
+
+/// Gossip methods root spans
+pub const SPAN_PROCESS_GOSSIP_DATA_COLUMN: &str = "process_gossip_data_column";
+pub const SPAN_PROCESS_GOSSIP_BLOB: &str = "process_gossip_blob";
+pub const SPAN_PROCESS_GOSSIP_BLOCK: &str = "process_gossip_block";
+
+/// Sync methods root spans
+pub const SPAN_SYNCING_CHAIN: &str = "syncing_chain";
+pub const SPAN_OUTGOING_RANGE_REQUEST: &str = "outgoing_range_request";
+pub const SPAN_OUTGOING_CUSTODY_REQUEST: &str = "outgoing_custody_request";
+pub const SPAN_PROCESS_RPC_BLOCK: &str = "process_rpc_block";
+pub const SPAN_PROCESS_RPC_BLOBS: &str = "process_rpc_blobs";
+pub const SPAN_PROCESS_RPC_CUSTODY_COLUMNS: &str = "process_rpc_custody_columns";
+pub const SPAN_PROCESS_CHAIN_SEGMENT: &str = "process_chain_segment";
+
+/// RPC methods root spans
+pub const SPAN_HANDLE_BLOCKS_BY_RANGE_REQUEST: &str = "handle_blocks_by_range_request";
+pub const SPAN_HANDLE_BLOBS_BY_RANGE_REQUEST: &str = "handle_blobs_by_range_request";
+pub const SPAN_HANDLE_DATA_COLUMNS_BY_RANGE_REQUEST: &str = "handle_data_columns_by_range_request";
+pub const SPAN_HANDLE_BLOCKS_BY_ROOT_REQUEST: &str = "handle_blocks_by_root_request";
+pub const SPAN_HANDLE_BLOBS_BY_ROOT_REQUEST: &str = "handle_blobs_by_root_request";
+pub const SPAN_HANDLE_DATA_COLUMNS_BY_ROOT_REQUEST: &str = "handle_data_columns_by_root_request";
+pub const SPAN_HANDLE_LIGHT_CLIENT_UPDATES_BY_RANGE: &str = "handle_light_client_updates_by_range";
+pub const SPAN_HANDLE_LIGHT_CLIENT_BOOTSTRAP: &str = "handle_light_client_bootstrap";
+pub const SPAN_HANDLE_LIGHT_CLIENT_OPTIMISTIC_UPDATE: &str =
+    "handle_light_client_optimistic_update";
+pub const SPAN_HANDLE_LIGHT_CLIENT_FINALITY_UPDATE: &str = "handle_light_client_finality_update";
+
+/// List of all root span names that are allowed to be exported to the tracing backend.
+/// Only these spans and their descendants will be processed to reduce noise from
+/// uninstrumented code paths. New root spans must be added to this list to be traced.
+pub const LH_BN_ROOT_SPAN_NAMES: &[&str] = &[
+    SPAN_SYNCING_CHAIN,
+    SPAN_PENDING_COMPONENTS,
+    SPAN_PROCESS_GOSSIP_DATA_COLUMN,
+    SPAN_PROCESS_GOSSIP_BLOB,
+    SPAN_PROCESS_GOSSIP_BLOCK,
+    SPAN_OUTGOING_RANGE_REQUEST,
+    SPAN_OUTGOING_CUSTODY_REQUEST,
+    SPAN_PROCESS_RPC_BLOCK,
+    SPAN_PROCESS_RPC_BLOBS,
+    SPAN_PROCESS_RPC_CUSTODY_COLUMNS,
+    SPAN_PROCESS_CHAIN_SEGMENT,
+    SPAN_HANDLE_BLOCKS_BY_RANGE_REQUEST,
+    SPAN_HANDLE_BLOBS_BY_RANGE_REQUEST,
+    SPAN_HANDLE_DATA_COLUMNS_BY_RANGE_REQUEST,
+    SPAN_HANDLE_BLOCKS_BY_ROOT_REQUEST,
+    SPAN_HANDLE_BLOBS_BY_ROOT_REQUEST,
+    SPAN_HANDLE_DATA_COLUMNS_BY_ROOT_REQUEST,
+    SPAN_HANDLE_LIGHT_CLIENT_UPDATES_BY_RANGE,
+    SPAN_HANDLE_LIGHT_CLIENT_BOOTSTRAP,
+    SPAN_HANDLE_LIGHT_CLIENT_OPTIMISTIC_UPDATE,
+    SPAN_HANDLE_LIGHT_CLIENT_FINALITY_UPDATE,
+];