add timeout for rpc connections (#263)

node/log_entry_sync/Cargo.toml

@@ -24,3 +24,5 @@ futures-util = "0.3.28"
 thiserror = "1.0.44"
 lazy_static = "1.4.0"
 metrics = { workspace = true }
+reqwest = {version = "0.11", features = ["json"]}
+url = { version = "2.4", default-features = false }

node/log_entry_sync/src/sync_manager/config.rs

@@ -1,3 +1,5 @@
+use std::time::Duration;
+
 use crate::ContractAddress;
 
 pub struct LogSyncConfig {
@@ -34,6 +36,9 @@ pub struct LogSyncConfig {
     pub watch_loop_wait_time_ms: u64,
     // force to sync log from start block number
     pub force_log_sync_from_start_block_number: bool,
+
+    // the timeout for blockchain rpc connection
+    pub blockchain_rpc_timeout: Duration,
 }
 
 #[derive(Clone)]
@@ -61,6 +66,7 @@ impl LogSyncConfig {
         remove_finalized_block_interval_minutes: u64,
         watch_loop_wait_time_ms: u64,
         force_log_sync_from_start_block_number: bool,
+        blockchain_rpc_timeout: Duration,
     ) -> Self {
         Self {
             rpc_endpoint_url,
@@ -77,6 +83,7 @@ impl LogSyncConfig {
             remove_finalized_block_interval_minutes,
             watch_loop_wait_time_ms,
             force_log_sync_from_start_block_number,
+            blockchain_rpc_timeout,
         }
     }
 }

node/log_entry_sync/src/sync_manager/log_entry_fetcher.rs

@@ -1,6 +1,6 @@
 use crate::sync_manager::log_query::LogQuery;
 use crate::sync_manager::RETRY_WAIT_MS;
-use crate::ContractAddress;
+use crate::{ContractAddress, LogSyncConfig};
 use anyhow::{anyhow, bail, Result};
 use append_merkle::{Algorithm, Sha3Algorithm};
 use contract_interface::{SubmissionNode, SubmitFilter, ZgsFlow};
@@ -12,7 +12,6 @@ use futures::StreamExt;
 use jsonrpsee::tracing::{debug, error, info, warn};
 use shared_types::{DataRoot, Transaction};
 use std::collections::{BTreeMap, HashMap};
-use std::str::FromStr;
 use std::sync::Arc;
 use std::time::Duration;
 use storage::log_store::{tx_store::BlockHashAndSubmissionIndex, Store};
@@ -34,28 +33,29 @@ pub struct LogEntryFetcher {
 }
 
 impl LogEntryFetcher {
-    pub async fn new(
-        url: &str,
-        contract_address: ContractAddress,
-        log_page_size: u64,
-        confirmation_delay: u64,
-        rate_limit_retries: u32,
-        timeout_retries: u32,
-        initial_backoff: u64,
-    ) -> Result<Self> {
+    pub async fn new(config: &LogSyncConfig) -> Result<Self> {
         let provider = Arc::new(Provider::new(
             RetryClientBuilder::default()
-                .rate_limit_retries(rate_limit_retries)
-                .timeout_retries(timeout_retries)
-                .initial_backoff(Duration::from_millis(initial_backoff))
-                .build(Http::from_str(url)?, Box::new(HttpRateLimitRetryPolicy)),
+                .rate_limit_retries(config.rate_limit_retries)
+                .timeout_retries(config.timeout_retries)
+                .initial_backoff(Duration::from_millis(config.initial_backoff))
+                .build(
+                    Http::new_with_client(
+                        url::Url::parse(&config.rpc_endpoint_url)?,
+                        reqwest::Client::builder()
+                            .timeout(config.blockchain_rpc_timeout)
+                            .connect_timeout(config.blockchain_rpc_timeout)
+                            .build()?,
+                    ),
+                    Box::new(HttpRateLimitRetryPolicy),
+                ),
         ));
         // TODO: `error` types are removed from the ABI json file.
         Ok(Self {
-            contract_address,
+            contract_address: config.contract_address,
             provider,
-            log_page_size,
-            confirmation_delay,
+            log_page_size: config.log_page_size,
+            confirmation_delay: config.confirmation_block_count,
         })
     }
 

node/log_entry_sync/src/sync_manager/mod.rs

@@ -86,16 +86,7 @@ impl LogSyncManager {
                         .expect("shutdown send error")
                 },
                 async move {
-                    let log_fetcher = LogEntryFetcher::new(
-                        &config.rpc_endpoint_url,
-                        config.contract_address,
-                        config.log_page_size,
-                        config.confirmation_block_count,
-                        config.rate_limit_retries,
-                        config.timeout_retries,
-                        config.initial_backoff,
-                    )
-                    .await?;
+                    let log_fetcher = LogEntryFetcher::new(&config).await?;
                     let data_cache = DataCache::new(config.cache_config.clone());
 
                     let block_hash_cache = Arc::new(RwLock::new(

node/src/config/convert.rs

@@ -146,6 +146,7 @@ impl ZgsConfig {
             self.remove_finalized_block_interval_minutes,
             self.watch_loop_wait_time_ms,
             self.force_log_sync_from_start_block_number,
+            Duration::from_secs(self.blockchain_rpc_timeout_secs),
         ))
     }
 

node/src/config/mod.rs

@@ -49,6 +49,8 @@ build_config! {
     (remove_finalized_block_interval_minutes, (u64), 30)
     (watch_loop_wait_time_ms, (u64), 500)
 
+    (blockchain_rpc_timeout_secs, (u64), 120)
+
     // chunk pool
     (chunk_pool_write_window_size, (usize), 4)
     (chunk_pool_max_cached_chunks_all, (usize), 4*1024*1024)    // 1G