ryerraguntla commented on code in PR #3516: URL: https://github.com/apache/iggy/pull/3516#discussion_r3448986964
########## core/connectors/sources/otlp_source/src/lib.rs: ########## @@ -0,0 +1,139 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +use async_trait::async_trait; +use iggy_connector_sdk::{ + ConnectorState, Error, ProducedMessage, ProducedMessages, Schema, Source, source_connector, +}; +use serde::{Deserialize, Serialize}; +use tokio::sync::{Mutex, mpsc, oneshot}; +use tokio::task::JoinHandle; +use tracing::info; + +pub mod convert; +pub mod server; + +source_connector!(OtlpSource); + +#[derive(Debug)] +pub struct OtlpSource { + id: u32, + config: OtlpSourceConfig, + rx: Mutex<Option<mpsc::Receiver<ProducedMessage>>>, + shutdown_tx: Mutex<Option<oneshot::Sender<()>>>, + server_task: Mutex<Option<JoinHandle<()>>>, +} + +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct OtlpSourceConfig { + pub listen_addr: String, + #[serde(default = "default_channel_capacity")] + pub channel_capacity: usize, + #[serde(default = "default_batch_size")] + pub batch_size: usize, +} + +fn default_channel_capacity() -> usize { + 50_000 +} + +fn default_batch_size() -> usize { + 1_000 +} + +impl OtlpSource { + pub fn new(id: u32, config: OtlpSourceConfig, _state: Option<ConnectorState>) -> Self { + OtlpSource { + id, + config, + rx: Mutex::new(None), + shutdown_tx: Mutex::new(None), + server_task: Mutex::new(None), + } + } +} + +#[async_trait] +impl Source for OtlpSource { + async fn open(&mut self) -> Result<(), Error> { + let addr = self + .config + .listen_addr + .parse() + .map_err(|err| Error::InitError(format!("Invalid listen address: {err}")))?; + + let (tx, rx) = mpsc::channel(self.config.channel_capacity); + let (shutdown_tx, shutdown_rx) = oneshot::channel(); + Review Comment: Bind race: tokio::spawn(server::run_grpc_server(addr, tx, shutdown_rx)) at line 80, then Ok(()) returned at line 90 without any signal from the server that bind succeeded. If bind fails (EADDRINUSE, EPERM), server task exits, tx dropped, rx.recv() at line 99 returns None. poll() returns Ok(empty) (line 102-106). SDK loop serializes empty batch, runtime source_forwarding_loop sends 0 Iggy messages, loops forever at CPU speed. Connector status stays Running with no data and no error. **Fix:** bind TcpListener synchronously inside open() before tokio::spawn, pass bound listener to server task. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
