feat(p2p/tce): add gossipsub message_id to tce logs

Signed-off-by: Simon Paitrault <simon.paitrault@gmail.com>

Author: Freyskeyd

crates/topos-p2p/src/behaviour/gossip.rs

@@ -1,37 +1,25 @@
 use std::collections::hash_map::DefaultHasher;
 use std::collections::HashSet;
 use std::hash::{Hash, Hasher};
-use std::{
-    collections::{HashMap, VecDeque},
-    env,
-    task::Poll,
-    time::Duration,
-};
+use std::{collections::HashMap, task::Poll};
 
+use libp2p::gossipsub::MessageId;
 use libp2p::swarm::{ConnectionClosed, FromSwarm};
 use libp2p::PeerId;
 use libp2p::{
     gossipsub::{self, IdentTopic, Message, MessageAuthenticity},
     identity::Keypair,
     swarm::{NetworkBehaviour, THandlerInEvent, ToSwarm},
 };
-use prost::Message as ProstMessage;
-use topos_core::api::grpc::tce::v1::Batch;
-use topos_metrics::P2P_GOSSIP_BATCH_SIZE;
-use tracing::{debug, error, warn};
+use tracing::{debug, trace, warn};
 
 use crate::error::P2PError;
 use crate::{constants, event::ComposedEvent, TOPOS_ECHO, TOPOS_GOSSIP, TOPOS_READY};
 
 use super::HealthStatus;
 
-const MAX_BATCH_SIZE: usize = 10;
-
 pub struct Behaviour {
-    batch_size: usize,
     gossipsub: gossipsub::Behaviour,
-    pending: HashMap<&'static str, VecDeque<Vec<u8>>>,
-    tick: tokio::time::Interval,
     /// List of connected peers per topic.
     connected_peer: HashMap<&'static str, HashSet<PeerId>>,
     /// The health status of the gossip behaviour
@@ -43,18 +31,16 @@ impl Behaviour {
         &mut self,
         topic: &'static str,
         message: Vec<u8>,
-    ) -> Result<usize, &'static str> {
+    ) -> Result<MessageId, P2PError> {
         match topic {
-            TOPOS_GOSSIP => {
-                if let Ok(msg_id) = self.gossipsub.publish(IdentTopic::new(topic), message) {
-                    debug!("Published on topos_gossip: {:?}", msg_id);
-                }
+            TOPOS_GOSSIP | TOPOS_ECHO | TOPOS_READY => {
+                let msg_id = self.gossipsub.publish(IdentTopic::new(topic), message)?;
+                trace!("Published on topos_gossip: {:?}", msg_id);
+
+                Ok(msg_id)
             }
-            TOPOS_ECHO | TOPOS_READY => self.pending.entry(topic).or_default().push_back(message),
-            _ => return Err("Invalid topic"),
+            _ => Err(P2PError::InvalidGossipTopic(topic)),
         }
-
-        Ok(0)
     }
 
     pub fn subscribe(&mut self) -> Result<(), P2PError> {
@@ -71,10 +57,6 @@ impl Behaviour {
     }
 
     pub async fn new(peer_key: Keypair) -> Self {
-        let batch_size = env::var("TOPOS_GOSSIP_BATCH_SIZE")
-            .map(|v| v.parse::<usize>())
-            .unwrap_or(Ok(MAX_BATCH_SIZE))
-            .unwrap();
         let gossipsub = gossipsub::ConfigBuilder::default()
             .max_transmit_size(2 * 1024 * 1024)
             .validation_mode(gossipsub::ValidationMode::Strict)
@@ -99,21 +81,7 @@ impl Behaviour {
         .unwrap();
 
         Self {
-            batch_size,
             gossipsub,
-            pending: [
-                (TOPOS_ECHO, VecDeque::new()),
-                (TOPOS_READY, VecDeque::new()),
-            ]
-            .into_iter()
-            .collect(),
-            tick: tokio::time::interval(Duration::from_millis(
-                env::var("TOPOS_GOSSIP_INTERVAL")
-                    .map(|v| v.parse::<u64>())
-                    .unwrap_or(Ok(100))
-                    .unwrap(),
-            )),
-
             connected_peer: Default::default(),
             health_status: Default::default(),
         }
@@ -191,26 +159,6 @@ impl NetworkBehaviour for Behaviour {
         &mut self,
         cx: &mut std::task::Context<'_>,
     ) -> Poll<ToSwarm<Self::ToSwarm, THandlerInEvent<Self>>> {
-        if self.tick.poll_tick(cx).is_ready() {
-            // Publish batch
-            for (topic, queue) in self.pending.iter_mut() {
-                if !queue.is_empty() {
-                    let num_of_message = queue.len().min(self.batch_size);
-                    let batch = Batch {
-                        messages: queue.drain(0..num_of_message).collect(),
-                    };
-
-                    debug!("Publishing {} {}", batch.messages.len(), topic);
-                    let msg = batch.encode_to_vec();
-                    P2P_GOSSIP_BATCH_SIZE.observe(batch.messages.len() as f64);
-                    match self.gossipsub.publish(IdentTopic::new(*topic), msg) {
-                        Ok(message_id) => debug!("Published {} {}", topic, message_id),
-                        Err(error) => error!("Failed to publish {}: {}", topic, error),
-                    }
-                }
-            }
-        }
-
         match self.gossipsub.poll(cx) {
             Poll::Pending => return Poll::Pending,
             Poll::Ready(ToSwarm::GenerateEvent(event)) => match event {
@@ -231,6 +179,7 @@ impl NetworkBehaviour for Behaviour {
                                 topic: TOPOS_GOSSIP,
                                 message: data,
                                 source,
+                                id: message_id,
                             },
                         )))
                     }
@@ -240,6 +189,7 @@ impl NetworkBehaviour for Behaviour {
                                 topic: TOPOS_ECHO,
                                 message: data,
                                 source,
+                                id: message_id,
                             },
                         )))
                     }
@@ -249,6 +199,7 @@ impl NetworkBehaviour for Behaviour {
                                 topic: TOPOS_READY,
                                 message: data,
                                 source,
+                                id: message_id,
                             },
                         )))
                     }

crates/topos-p2p/src/client.rs

@@ -1,4 +1,4 @@
-use futures::future::BoxFuture;
+use futures::TryFutureExt;
 use libp2p::PeerId;
 use tokio::sync::{
     mpsc::{self, error::SendError},
@@ -39,21 +39,24 @@ impl NetworkClient {
         .await
     }
 
-    pub fn publish<T: std::fmt::Debug + prost::Message + 'static>(
+    pub async fn publish<T: std::fmt::Debug + prost::Message + 'static>(
         &self,
         topic: &'static str,
         message: T,
-    ) -> BoxFuture<'static, Result<(), SendError<Command>>> {
+    ) -> Result<String, P2PError> {
         let network = self.sender.clone();
+        let (sender, receiver) = oneshot::channel();
+
+        network
+            .send(Command::Gossip {
+                topic,
+                data: message.encode_to_vec(),
+                sender,
+            })
+            .map_err(CommandExecutionError::from)
+            .await?;
 
-        Box::pin(async move {
-            network
-                .send(Command::Gossip {
-                    topic,
-                    data: message.encode_to_vec(),
-                })
-                .await
-        })
+        receiver.await?.map(|id| id.to_string())
     }
 
     async fn send_command_with_receiver<

crates/topos-p2p/src/command.rs

@@ -1,6 +1,6 @@
 use std::fmt::Display;
 
-use libp2p::PeerId;
+use libp2p::{gossipsub::MessageId, PeerId};
 use tokio::sync::oneshot;
 
 use crate::{behaviour::grpc::connection::OutboundConnection, error::P2PError};
@@ -15,6 +15,7 @@ pub enum Command {
     Gossip {
         topic: &'static str,
         data: Vec<u8>,
+        sender: oneshot::Sender<Result<MessageId, P2PError>>,
     },
 
     /// Ask for the creation of a new proxy connection for a gRPC query.

crates/topos-p2p/src/error.rs

@@ -1,8 +1,11 @@
 use std::io;
 
 use libp2p::{
-    gossipsub::SubscriptionError, kad::NoKnownPeers, noise::Error as NoiseError,
-    request_response::OutboundFailure, TransportError,
+    gossipsub::{PublishError, SubscriptionError},
+    kad::NoKnownPeers,
+    noise::Error as NoiseError,
+    request_response::OutboundFailure,
+    TransportError,
 };
 use thiserror::Error;
 use tokio::sync::{mpsc, oneshot};
@@ -49,6 +52,12 @@ pub enum P2PError {
 
     #[error("Gossip topics subscription failed")]
     GossipTopicSubscriptionFailure,
+
+    #[error("Gossipsub publish failure: {0}")]
+    GossipsubPublishFailure(#[from] PublishError),
+
+    #[error("Invalid gossipsub topics: {0}")]
+    InvalidGossipTopic(&'static str),
 }
 
 #[derive(Error, Debug)]

crates/topos-p2p/src/event.rs

@@ -1,4 +1,4 @@
-use libp2p::{identify, kad, PeerId};
+use libp2p::{gossipsub::MessageId, identify, kad, PeerId};
 
 use crate::behaviour::{grpc, HealthStatus};
 
@@ -10,6 +10,7 @@ pub enum GossipEvent {
         source: Option<PeerId>,
         topic: &'static str,
         message: Vec<u8>,
+        id: MessageId,
     },
 }
 
@@ -50,7 +51,11 @@ impl From<void::Void> for ComposedEvent {
 #[derive(Debug)]
 pub enum Event {
     /// An event emitted when a gossip message is received
-    Gossip { from: PeerId, data: Vec<u8> },
+    Gossip {
+        from: PeerId,
+        data: Vec<u8>,
+        id: String,
+    },
     /// An event emitted when the p2p layer becomes healthy
     Healthy,
     /// An event emitted when the p2p layer becomes unhealthy

crates/topos-p2p/src/runtime/handle_command.rs

@@ -5,7 +5,7 @@ use crate::{
 
 use rand::{thread_rng, Rng};
 use topos_metrics::P2P_MESSAGE_SENT_ON_GOSSIPSUB_TOTAL;
-use tracing::{debug, error, warn};
+use tracing::{error, trace, warn};
 
 impl Runtime {
     pub(crate) async fn handle_command(&mut self, command: Command) {
@@ -64,12 +64,17 @@ impl Runtime {
             Command::Gossip {
                 topic,
                 data: message,
+                sender,
             } => match self.swarm.behaviour_mut().gossipsub.publish(topic, message) {
                 Ok(message_id) => {
-                    debug!("Published message to {topic}");
+                    trace!("Published message to {topic}");
                     P2P_MESSAGE_SENT_ON_GOSSIPSUB_TOTAL.inc();
+                    _ = sender.send(Ok(message_id));
+                }
+                Err(err) => {
+                    error!("Failed to publish message to {topic}: {err}");
+                    _ = sender.send(Err(err));
                 }
-                Err(err) => error!("Failed to publish message to {topic}: {err}"),
             },
         }
     }

crates/topos-p2p/src/runtime/handle_event/gossipsub.rs

@@ -1,13 +1,10 @@
 use topos_metrics::{
-    P2P_EVENT_STREAM_CAPACITY_TOTAL, P2P_MESSAGE_DESERIALIZE_FAILURE_TOTAL,
-    P2P_MESSAGE_RECEIVED_ON_ECHO_TOTAL, P2P_MESSAGE_RECEIVED_ON_GOSSIP_TOTAL,
-    P2P_MESSAGE_RECEIVED_ON_READY_TOTAL,
+    P2P_EVENT_STREAM_CAPACITY_TOTAL, P2P_MESSAGE_RECEIVED_ON_ECHO_TOTAL,
+    P2P_MESSAGE_RECEIVED_ON_GOSSIP_TOTAL, P2P_MESSAGE_RECEIVED_ON_READY_TOTAL,
 };
 use tracing::{debug, error};
 
 use crate::{constants, event::GossipEvent, Event, Runtime, TOPOS_ECHO, TOPOS_GOSSIP, TOPOS_READY};
-use prost::Message;
-use topos_core::api::grpc::tce::v1::Batch;
 
 use super::{EventHandler, EventResult};
 
@@ -18,57 +15,36 @@ impl EventHandler<GossipEvent> for Runtime {
             source: Some(source),
             message,
             topic,
+            id,
         } = event
         {
             if self.event_sender.capacity() < *constants::CAPACITY_EVENT_STREAM_BUFFER {
                 P2P_EVENT_STREAM_CAPACITY_TOTAL.inc();
             }
 
             debug!("Received message from {:?} on topic {:?}", source, topic);
-            match topic {
-                TOPOS_GOSSIP => {
-                    P2P_MESSAGE_RECEIVED_ON_GOSSIP_TOTAL.inc();
 
-                    if let Err(e) = self
-                        .event_sender
-                        .send(Event::Gossip {
-                            from: source,
-                            data: message,
-                        })
-                        .await
-                    {
-                        error!("Failed to send gossip event to runtime: {:?}", e);
-                    }
-                }
-                TOPOS_ECHO | TOPOS_READY => {
-                    if topic == TOPOS_ECHO {
-                        P2P_MESSAGE_RECEIVED_ON_ECHO_TOTAL.inc();
-                    } else {
-                        P2P_MESSAGE_RECEIVED_ON_READY_TOTAL.inc();
-                    }
-                    if let Ok(Batch { messages }) = Batch::decode(&message[..]) {
-                        for message in messages {
-                            if let Err(e) = self
-                                .event_sender
-                                .send(Event::Gossip {
-                                    from: source,
-                                    data: message,
-                                })
-                                .await
-                            {
-                                error!("Failed to send gossip {} event to runtime: {:?}", topic, e);
-                            }
-                        }
-                    } else {
-                        P2P_MESSAGE_DESERIALIZE_FAILURE_TOTAL
-                            .with_label_values(&[topic])
-                            .inc();
-                    }
-                }
+            match topic {
+                TOPOS_GOSSIP => P2P_MESSAGE_RECEIVED_ON_GOSSIP_TOTAL.inc(),
+                TOPOS_ECHO => P2P_MESSAGE_RECEIVED_ON_ECHO_TOTAL.inc(),
+                TOPOS_READY => P2P_MESSAGE_RECEIVED_ON_READY_TOTAL.inc(),
                 _ => {
                     error!("Received message on unknown topic {:?}", topic);
+                    return Ok(());
                 }
             }
+
+            if let Err(e) = self
+                .event_sender
+                .send(Event::Gossip {
+                    from: source,
+                    data: message,
+                    id: id.to_string(),
+                })
+                .await
+            {
+                error!("Failed to send gossip event to runtime: {:?}", e);
+            }
         }
 
         Ok(())