one tier
This commit is contained in:
parent
9e167b8289
commit
48b1b08e3d
@ -4,6 +4,7 @@ members = [
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"web3-proxy",
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"web3-proxy",
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]
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]
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[profile.release]
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# TODO: enable these once rapid development is done
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lto = true
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#[profile.release]
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panic = "abort"
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#lto = true
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#panic = "abort"
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@ -1,20 +1,18 @@
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[shared]
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[shared]
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chain_id = 1
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chain_id = 1
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[balanced_rpc_tiers]
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[balanced_rpcs]
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[balanced_rpc_tiers.0]
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[balanced_rpcs.erigon_archive]
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[balanced_rpc_tiers.0.erigon_archive]
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url = "ws://127.0.0.1:8549"
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url = "ws://127.0.0.1:8549"
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# TODO: double check soft_limit on erigon
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# TODO: double check soft_limit on erigon
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soft_limit = 100_000
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soft_limit = 100_000
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[balanced_rpc_tiers.0.geth]
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[balanced_rpcs.geth]
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url = "ws://127.0.0.1:8546"
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url = "ws://127.0.0.1:8546"
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soft_limit = 200_000
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soft_limit = 200_000
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[balanced_rpc_tiers.0.ankr]
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[balanced_rpcs.ankr]
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url = "https://rpc.ankr.com/eth"
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url = "https://rpc.ankr.com/eth"
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soft_limit = 3_000
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soft_limit = 3_000
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@ -7,15 +7,14 @@ use crate::jsonrpc::JsonRpcRequest;
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use crate::jsonrpc::JsonRpcRequestEnum;
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use crate::jsonrpc::JsonRpcRequestEnum;
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use ethers::prelude::ProviderError;
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use ethers::prelude::ProviderError;
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use ethers::prelude::{HttpClientError, WsClientError};
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use ethers::prelude::{HttpClientError, WsClientError};
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use futures::future;
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use futures::future::join_all;
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use futures::future::join_all;
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use governor::clock::{Clock, QuantaClock};
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use governor::clock::{Clock, QuantaClock};
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use linkedhashmap::LinkedHashMap;
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use linkedhashmap::LinkedHashMap;
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use parking_lot::RwLock;
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use std::fmt;
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use std::fmt;
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use std::sync::atomic::{self, AtomicU64};
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use std::sync::atomic::AtomicU64;
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use std::sync::Arc;
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use std::sync::Arc;
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use std::time::Duration;
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use std::time::Duration;
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use tokio::sync::RwLock;
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use tokio::time::sleep;
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use tokio::time::sleep;
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use tracing::{trace, warn};
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use tracing::{trace, warn};
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@ -37,33 +36,27 @@ type ResponseLruCache =
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// TODO: this debug impl is way too verbose. make something smaller
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// TODO: this debug impl is way too verbose. make something smaller
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// TODO: if Web3ProxyApp is always in an Arc, i think we can avoid having at least some of these internal things in arcs
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// TODO: if Web3ProxyApp is always in an Arc, i think we can avoid having at least some of these internal things in arcs
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pub struct Web3ProxyApp {
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pub struct Web3ProxyApp {
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best_head_block_number: Arc<AtomicU64>,
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/// clock used for rate limiting
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/// clock used for rate limiting
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/// TODO: use tokio's clock (will require a different ratelimiting crate)
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/// TODO: use tokio's clock? (will require a different ratelimiting crate)
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clock: QuantaClock,
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clock: QuantaClock,
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/// Send requests to the best server available
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/// Send requests to the best server available
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balanced_rpc_tiers: Vec<Arc<Web3Connections>>,
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balanced_rpcs: Arc<Web3Connections>,
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/// Send private requests (like eth_sendRawTransaction) to all these servers
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/// Send private requests (like eth_sendRawTransaction) to all these servers
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private_rpcs: Option<Arc<Web3Connections>>,
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private_rpcs: Arc<Web3Connections>,
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response_cache: ResponseLruCache,
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response_cache: ResponseLruCache,
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}
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}
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impl fmt::Debug for Web3ProxyApp {
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impl fmt::Debug for Web3ProxyApp {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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// TODO: the default formatter takes forever to write. this is too quiet though
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// TODO: the default formatter takes forever to write. this is too quiet though
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f.debug_struct("Web3ProxyApp")
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f.debug_struct("Web3ProxyApp").finish_non_exhaustive()
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.field(
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"best_head_block_number",
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&self.best_head_block_number.load(atomic::Ordering::Relaxed),
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)
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.finish_non_exhaustive()
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}
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}
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}
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}
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impl Web3ProxyApp {
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impl Web3ProxyApp {
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pub async fn try_new(
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pub async fn try_new(
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chain_id: usize,
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chain_id: usize,
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balanced_rpc_tiers: Vec<Vec<Web3ConnectionConfig>>,
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balanced_rpcs: Vec<Web3ConnectionConfig>,
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private_rpcs: Vec<Web3ConnectionConfig>,
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private_rpcs: Vec<Web3ConnectionConfig>,
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) -> anyhow::Result<Web3ProxyApp> {
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) -> anyhow::Result<Web3ProxyApp> {
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let clock = QuantaClock::default();
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let clock = QuantaClock::default();
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@ -80,28 +73,21 @@ impl Web3ProxyApp {
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.build()?;
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.build()?;
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// TODO: attach context to this error
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// TODO: attach context to this error
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let balanced_rpc_tiers =
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let balanced_rpcs = Web3Connections::try_new(
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future::join_all(balanced_rpc_tiers.into_iter().map(|balanced_rpc_tier| {
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Web3Connections::try_new(
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chain_id,
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chain_id,
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best_head_block_number.clone(),
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best_head_block_number.clone(),
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balanced_rpc_tier,
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balanced_rpcs,
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Some(http_client.clone()),
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Some(http_client.clone()),
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&clock,
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&clock,
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true,
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true,
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)
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)
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}))
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.await?;
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.await
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.into_iter()
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.collect::<anyhow::Result<Vec<Arc<Web3Connections>>>>()?;
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// TODO: attach context to this error
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// TODO: attach context to this error
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let private_rpcs = if private_rpcs.is_empty() {
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let private_rpcs = if private_rpcs.is_empty() {
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warn!("No private relays configured. Any transactions will be broadcast to the public mempool!");
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warn!("No private relays configured. Any transactions will be broadcast to the public mempool!");
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// TODO: instead of None, set it to a list of all the rpcs from balanced_rpc_tiers. that way we broadcast very loudly
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balanced_rpcs.clone()
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None
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} else {
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} else {
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Some(
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Web3Connections::try_new(
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Web3Connections::try_new(
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chain_id,
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chain_id,
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best_head_block_number.clone(),
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best_head_block_number.clone(),
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@ -110,14 +96,12 @@ impl Web3ProxyApp {
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&clock,
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&clock,
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false,
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false,
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)
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)
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.await?,
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.await?
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)
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};
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};
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Ok(Web3ProxyApp {
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Ok(Web3ProxyApp {
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best_head_block_number,
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clock,
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clock,
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balanced_rpc_tiers,
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balanced_rpcs,
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private_rpcs,
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private_rpcs,
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response_cache: Default::default(),
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response_cache: Default::default(),
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})
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})
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@ -180,17 +164,15 @@ impl Web3ProxyApp {
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// TODO: apparently json_body can be a vec of multiple requests. should we split them up? we need to respond with a Vec too
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// TODO: apparently json_body can be a vec of multiple requests. should we split them up? we need to respond with a Vec too
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if self.private_rpcs.is_some() && request.method == "eth_sendRawTransaction" {
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if request.method == "eth_sendRawTransaction" {
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let private_rpcs = self.private_rpcs.as_ref().unwrap();
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// there are private rpcs configured and the request is eth_sendSignedTransaction. send to all private rpcs
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// there are private rpcs configured and the request is eth_sendSignedTransaction. send to all private rpcs
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loop {
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loop {
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// TODO: think more about this lock. i think it won't actually help the herd. it probably makes it worse if we have a tight lag_limit
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// TODO: think more about this lock. i think it won't actually help the herd. it probably makes it worse if we have a tight lag_limit
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match private_rpcs.get_upstream_servers() {
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match self.private_rpcs.get_upstream_servers() {
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Ok(active_request_handles) => {
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Ok(active_request_handles) => {
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let (tx, rx) = flume::unbounded();
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let (tx, rx) = flume::unbounded();
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let connections = private_rpcs.clone();
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let connections = self.private_rpcs.clone();
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let method = request.method.clone();
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let method = request.method.clone();
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let params = request.params.clone();
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let params = request.params.clone();
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@ -221,18 +203,17 @@ impl Web3ProxyApp {
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return Ok(response);
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return Ok(response);
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}
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}
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}
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}
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Err(not_until) => {
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Err(None) => {
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// TODO: return a 502?
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return Err(anyhow::anyhow!("no private rpcs!"));
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}
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Err(Some(not_until)) => {
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// TODO: move this to a helper function
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// TODO: move this to a helper function
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// sleep (TODO: with a lock?) until our rate limits should be available
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// sleep (TODO: with a lock?) until our rate limits should be available
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// TODO: if a server catches up sync while we are waiting, we could stop waiting
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// TODO: if a server catches up sync while we are waiting, we could stop waiting
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if let Some(not_until) = not_until {
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let deadline = not_until.wait_time_from(self.clock.now());
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let deadline = not_until.wait_time_from(self.clock.now());
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sleep(deadline).await;
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sleep(deadline).await;
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} else {
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// TODO: what should we do here?
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return Err(anyhow::anyhow!("no private rpcs!"));
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}
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}
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}
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};
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};
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}
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}
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@ -241,42 +222,23 @@ impl Web3ProxyApp {
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// try to send to each tier, stopping at the first success
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// try to send to each tier, stopping at the first success
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// if no tiers are synced, fallback to privates
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// if no tiers are synced, fallback to privates
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loop {
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loop {
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// there are multiple tiers. save the earliest not_until (if any). if we don't return, we will sleep until then and then try again
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let best_block_number = self.balanced_rpcs.head_block_number();
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let mut earliest_not_until = None;
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// TODO: how can we better build this iterator?
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let rpc_iter = if let Some(private_rpcs) = self.private_rpcs.as_ref() {
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self.balanced_rpc_tiers.iter().chain(vec![private_rpcs])
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} else {
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self.balanced_rpc_tiers.iter().chain(vec![])
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};
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for balanced_rpcs in rpc_iter {
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let best_head_block_number =
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self.best_head_block_number.load(atomic::Ordering::Acquire);
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let best_rpc_block_number = balanced_rpcs.head_block_number();
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if best_rpc_block_number < best_head_block_number {
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continue;
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}
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// TODO: building this cache key is slow and its large, but i don't see a better way right now
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// TODO: building this cache key is slow and its large, but i don't see a better way right now
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// TODO: inspect the params and see if a block is specified. if so, use that block number instead of current_block
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// TODO: inspect the params and see if a block is specified. if so, use that block number instead of current_block
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let cache_key = (
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let cache_key = (
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best_head_block_number,
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best_block_number,
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request.method.clone(),
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request.method.clone(),
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request.params.clone().map(|x| x.to_string()),
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request.params.clone().map(|x| x.to_string()),
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);
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);
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if let Some(cached) = self.response_cache.read().await.get(&cache_key) {
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if let Some(cached) = self.response_cache.read().get(&cache_key) {
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// TODO: this still serializes every time
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// TODO: this still serializes every time
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// TODO: return a reference in the other places so that this works without a clone?
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// TODO: return a reference in the other places so that this works without a clone?
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return Ok(cached.to_owned());
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return Ok(cached.to_owned());
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}
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}
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// TODO: what allowed lag?
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match self.balanced_rpcs.next_upstream_server().await {
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match balanced_rpcs.next_upstream_server().await {
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Ok(active_request_handle) => {
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Ok(active_request_handle) => {
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let response = active_request_handle
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let response = active_request_handle
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.request(&request.method, &request.params)
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.request(&request.method, &request.params)
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@ -296,7 +258,7 @@ impl Web3ProxyApp {
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};
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};
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// TODO: small race condidition here. parallel requests with the same query will both be saved to the cache
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// TODO: small race condidition here. parallel requests with the same query will both be saved to the cache
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let mut response_cache = self.response_cache.write().await;
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let mut response_cache = self.response_cache.write();
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// TODO: cache the warp::reply to save us serializing every time
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// TODO: cache the warp::reply to save us serializing every time
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response_cache.insert(cache_key, response.clone());
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response_cache.insert(cache_key, response.clone());
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@ -305,6 +267,8 @@ impl Web3ProxyApp {
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response_cache.pop_front();
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response_cache.pop_front();
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}
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}
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drop(response_cache);
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response
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response
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}
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}
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Err(e) => {
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Err(e) => {
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@ -330,9 +294,7 @@ impl Web3ProxyApp {
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data = None;
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data = None;
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}
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}
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}
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}
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} else if let Some(e) =
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} else if let Some(e) = e.downcast_ref::<WsClientError>() {
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e.downcast_ref::<WsClientError>()
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{
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match &*e {
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match &*e {
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WsClientError::JsonRpcError(e) => {
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WsClientError::JsonRpcError(e) => {
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code = e.code;
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code = e.code;
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@ -380,42 +342,18 @@ impl Web3ProxyApp {
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}
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}
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Err(None) => {
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Err(None) => {
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// TODO: this is too verbose. if there are other servers in other tiers, we use those!
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// TODO: this is too verbose. if there are other servers in other tiers, we use those!
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// warn!("No servers in sync!");
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warn!("No servers in sync!");
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return Err(anyhow::anyhow!("no servers in sync"));
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}
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}
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Err(Some(not_until)) => {
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Err(Some(not_until)) => {
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// save the smallest not_until. if nothing succeeds, return an Err with not_until in it
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// TODO: move this to a helper function
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// TODO: helper function for this
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// sleep (TODO: with a lock?) until our rate limits should be available
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if earliest_not_until.is_none() {
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// TODO: if a server catches up sync while we are waiting, we could stop waiting
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earliest_not_until.replace(not_until);
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let deadline = not_until.wait_time_from(self.clock.now());
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} else {
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let earliest_possible =
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earliest_not_until.as_ref().unwrap().earliest_possible();
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let new_earliest_possible = not_until.earliest_possible();
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if earliest_possible > new_earliest_possible {
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earliest_not_until = Some(not_until);
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}
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}
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}
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}
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}
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// we haven't returned an Ok
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// if we did return a rate limit error, sleep and try again
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if let Some(earliest_not_until) = earliest_not_until {
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let deadline = earliest_not_until.wait_time_from(self.clock.now());
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// TODO: max wait
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sleep(deadline).await;
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sleep(deadline).await;
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} else {
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}
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// TODO: how long should we wait?
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}
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// TODO: max wait time?
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warn!("No servers in sync!");
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// TODO: return a 502?
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return Err(anyhow::anyhow!("no servers in sync"));
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};
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}
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}
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}
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}
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}
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}
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@ -1,7 +1,7 @@
|
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use argh::FromArgs;
|
use argh::FromArgs;
|
||||||
use governor::clock::QuantaClock;
|
use governor::clock::QuantaClock;
|
||||||
use serde::Deserialize;
|
use serde::Deserialize;
|
||||||
use std::collections::{BTreeMap, HashMap};
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use std::collections::HashMap;
|
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use std::sync::Arc;
|
use std::sync::Arc;
|
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|
|
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use crate::connection::Web3Connection;
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use crate::connection::Web3Connection;
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@ -22,8 +22,7 @@ pub struct CliConfig {
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#[derive(Deserialize)]
|
#[derive(Deserialize)]
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pub struct RpcConfig {
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pub struct RpcConfig {
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pub shared: RpcSharedConfig,
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pub shared: RpcSharedConfig,
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// BTreeMap so that iterating keeps the same order. we want tier 0 before tier 1!
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pub balanced_rpcs: HashMap<String, Web3ConnectionConfig>,
|
||||||
pub balanced_rpc_tiers: BTreeMap<String, HashMap<String, Web3ConnectionConfig>>,
|
|
||||||
pub private_rpcs: Option<HashMap<String, Web3ConnectionConfig>>,
|
pub private_rpcs: Option<HashMap<String, Web3ConnectionConfig>>,
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -44,11 +43,7 @@ pub struct Web3ConnectionConfig {
|
|||||||
impl RpcConfig {
|
impl RpcConfig {
|
||||||
/// Create a Web3ProxyApp from config
|
/// Create a Web3ProxyApp from config
|
||||||
pub async fn try_build(self) -> anyhow::Result<Web3ProxyApp> {
|
pub async fn try_build(self) -> anyhow::Result<Web3ProxyApp> {
|
||||||
let balanced_rpc_tiers = self
|
let balanced_rpcs = self.balanced_rpcs.into_values().collect();
|
||||||
.balanced_rpc_tiers
|
|
||||||
.into_values()
|
|
||||||
.map(|x| x.into_values().collect())
|
|
||||||
.collect();
|
|
||||||
|
|
||||||
let private_rpcs = if let Some(private_rpcs) = self.private_rpcs {
|
let private_rpcs = if let Some(private_rpcs) = self.private_rpcs {
|
||||||
private_rpcs.into_values().collect()
|
private_rpcs.into_values().collect()
|
||||||
@ -56,7 +51,7 @@ impl RpcConfig {
|
|||||||
vec![]
|
vec![]
|
||||||
};
|
};
|
||||||
|
|
||||||
Web3ProxyApp::try_new(self.shared.chain_id, balanced_rpc_tiers, private_rpcs).await
|
Web3ProxyApp::try_new(self.shared.chain_id, balanced_rpcs, private_rpcs).await
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -45,6 +45,7 @@ pub struct Web3Connection {
|
|||||||
/// used for load balancing to the least loaded server
|
/// used for load balancing to the least loaded server
|
||||||
soft_limit: u32,
|
soft_limit: u32,
|
||||||
head_block_number: AtomicU64,
|
head_block_number: AtomicU64,
|
||||||
|
/// the same clock that is used by the rate limiter
|
||||||
clock: QuantaClock,
|
clock: QuantaClock,
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -268,6 +269,7 @@ impl Web3Connection {
|
|||||||
}
|
}
|
||||||
|
|
||||||
pub async fn wait_for_request_handle(self: &Arc<Self>) -> ActiveRequestHandle {
|
pub async fn wait_for_request_handle(self: &Arc<Self>) -> ActiveRequestHandle {
|
||||||
|
// TODO: maximum wait time
|
||||||
loop {
|
loop {
|
||||||
match self.try_request_handle() {
|
match self.try_request_handle() {
|
||||||
Ok(pending_request_handle) => return pending_request_handle,
|
Ok(pending_request_handle) => return pending_request_handle,
|
||||||
@ -288,7 +290,7 @@ impl Web3Connection {
|
|||||||
match ratelimiter.check() {
|
match ratelimiter.check() {
|
||||||
Ok(_) => {
|
Ok(_) => {
|
||||||
// rate limit succeeded
|
// rate limit succeeded
|
||||||
return Ok(ActiveRequestHandle(self.clone()));
|
return Ok(ActiveRequestHandle::new(self.clone()));
|
||||||
}
|
}
|
||||||
Err(not_until) => {
|
Err(not_until) => {
|
||||||
// rate limit failed
|
// rate limit failed
|
||||||
|
@ -345,7 +345,7 @@ impl Web3Connections {
|
|||||||
}
|
}
|
||||||
|
|
||||||
/// get all rpc servers that are not rate limited
|
/// get all rpc servers that are not rate limited
|
||||||
/// even fetches if they aren't in sync. This is useful for broadcasting signed transactions
|
/// returns servers even if they aren't in sync. This is useful for broadcasting signed transactions
|
||||||
pub fn get_upstream_servers(
|
pub fn get_upstream_servers(
|
||||||
&self,
|
&self,
|
||||||
) -> Result<Vec<ActiveRequestHandle>, Option<NotUntil<QuantaInstant>>> {
|
) -> Result<Vec<ActiveRequestHandle>, Option<NotUntil<QuantaInstant>>> {
|
||||||
|
Loading…
Reference in New Issue
Block a user