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Add SendTransactionService

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This commit is contained in:
Michael Vines
2020-06-05 21:23:13 -07:00
parent 2da9b12d67
commit ed351400b2
4 changed files with 481 additions and 87 deletions
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377
core/src/send_transaction_service.rs Normal file
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use crate::cluster_info::ClusterInfo;
use solana_ledger::bank_forks::BankForks;
use solana_metrics::{datapoint_warn, inc_new_counter_info};
use solana_runtime::bank::Bank;
use solana_sdk::{clock::Slot, signature::Signature};
use std::{
collections::HashMap,
net::{SocketAddr, UdpSocket},
sync::{
atomic::{AtomicBool, Ordering},
mpsc::{channel, Receiver, Sender},
Arc, Mutex, RwLock,
},
thread::{self, Builder, JoinHandle},
time::{Duration, Instant},
};
/// Maximum size of the transaction queue
const MAX_TRANSACTION_QUEUE_SIZE: usize = 10_000; // This seems like a lot but maybe it needs to be bigger one day
pub struct SendTransactionService {
thread: JoinHandle<()>,
sender: Mutex<Sender<TransactionInfo>>,
send_socket: UdpSocket,
tpu_address: SocketAddr,
}
struct TransactionInfo {
signature: Signature,
wire_transaction: Vec<u8>,
last_valid_slot: Slot,
}
#[derive(Default, Debug, PartialEq)]
struct ProcessTransactionsResult {
rooted: u64,
expired: u64,
retried: u64,
failed: u64,
retained: u64,
}
impl SendTransactionService {
pub fn new(
cluster_info: &Arc<ClusterInfo>,
bank_forks: &Arc<RwLock<BankForks>>,
exit: &Arc<AtomicBool>,
) -> Self {
let (sender, receiver) = channel::<TransactionInfo>();
let tpu_address = cluster_info.my_contact_info().tpu;
let thread = Self::retry_thread(receiver, bank_forks.clone(), tpu_address, exit.clone());
Self {
thread,
sender: Mutex::new(sender),
send_socket: UdpSocket::bind("0.0.0.0:0").unwrap(),
tpu_address,
}
}
fn retry_thread(
receiver: Receiver<TransactionInfo>,
bank_forks: Arc<RwLock<BankForks>>,
tpu_address: SocketAddr,
exit: Arc<AtomicBool>,
) -> JoinHandle<()> {
let mut last_status_check = Instant::now();
let mut transactions = HashMap::new();
let send_socket = UdpSocket::bind("0.0.0.0:0").unwrap();
Builder::new()
.name("send-tx-svc".to_string())
.spawn(move || loop {
if exit.load(Ordering::Relaxed) {
break;
}
if let Ok(transaction_info) = receiver.recv_timeout(Duration::from_secs(1)) {
if transactions.len() < MAX_TRANSACTION_QUEUE_SIZE {
transactions.insert(transaction_info.signature, transaction_info);
} else {
datapoint_warn!("send_transaction_service-queue-overflow");
}
}
if Instant::now().duration_since(last_status_check).as_secs() >= 5 {
if !transactions.is_empty() {
datapoint_info!(
"send_transaction_service-queue-size",
("len", transactions.len(), i64)
);
let bank_forks = bank_forks.read().unwrap();
let root_bank = bank_forks.root_bank();
let working_bank = bank_forks.working_bank();
let _result = Self::process_transactions(
&working_bank,
&root_bank,
&send_socket,
&tpu_address,
&mut transactions,
);
}
last_status_check = Instant::now();
}
})
.unwrap()
}
fn process_transactions(
working_bank: &Arc<Bank>,
root_bank: &Arc<Bank>,
send_socket: &UdpSocket,
tpu_address: &SocketAddr,
transactions: &mut HashMap<Signature, TransactionInfo>,
) -> ProcessTransactionsResult {
let mut result = ProcessTransactionsResult::default();
transactions.retain(|signature, transaction_info| {
if root_bank.has_signature(signature) {
info!("Transaction is rooted: {}", signature);
result.rooted += 1;
inc_new_counter_info!("send_transaction_service-rooted", 1);
false
} else if transaction_info.last_valid_slot < root_bank.slot() {
info!("Dropping expired transaction: {}", signature);
result.expired += 1;
inc_new_counter_info!("send_transaction_service-expired", 1);
false
} else {
match working_bank.get_signature_status_slot(signature) {
None => {
// Transaction is unknown to the working bank, it might have been
// dropped or landed in another fork. Re-send it
info!("Retrying transaction: {}", signature);
result.retried += 1;
inc_new_counter_info!("send_transaction_service-retry", 1);
Self::send_transaction(
&send_socket,
&tpu_address,
&transaction_info.wire_transaction,
);
true
}
Some((_slot, status)) => {
if status.is_err() {
info!("Dropping failed transaction: {}", signature);
result.failed += 1;
inc_new_counter_info!("send_transaction_service-failed", 1);
false
} else {
result.retained += 1;
true
}
}
}
}
});
result
}
fn send_transaction(
send_socket: &UdpSocket,
tpu_address: &SocketAddr,
wire_transaction: &[u8],
) {
if let Err(err) = send_socket.send_to(wire_transaction, tpu_address) {
warn!("Failed to send transaction to {}: {:?}", tpu_address, err);
}
}
pub fn send(&self, signature: Signature, wire_transaction: Vec<u8>, last_valid_slot: Slot) {
inc_new_counter_info!("send_transaction_service-enqueue", 1, 1);
Self::send_transaction(&self.send_socket, &self.tpu_address, &wire_transaction);
self.sender
.lock()
.unwrap()
.send(TransactionInfo {
signature,
wire_transaction,
last_valid_slot,
})
.unwrap_or_else(|err| warn!("Failed to enqueue transaction: {}", err));
}
pub fn join(self) -> thread::Result<()> {
self.thread.join()
}
}
#[cfg(test)]
mod test {
use super::*;
use crate::rpc::tests::new_bank_forks;
use solana_sdk::{pubkey::Pubkey, signature::Signer};
#[test]
fn service_exit() {
let cluster_info = Arc::new(ClusterInfo::default());
let bank_forks = new_bank_forks().0;
let exit = Arc::new(AtomicBool::new(false));
let send_tranaction_service =
SendTransactionService::new(&cluster_info, &bank_forks, &exit);
exit.store(true, Ordering::Relaxed);
send_tranaction_service.join().unwrap();
}
#[test]
fn process_transactions() {
solana_logger::setup();
let (bank_forks, mint_keypair, _voting_keypair) = new_bank_forks();
let cluster_info = ClusterInfo::default();
let send_socket = UdpSocket::bind("0.0.0.0:0").unwrap();
let tpu_address = cluster_info.my_contact_info().tpu;
let root_bank = Arc::new(Bank::new_from_parent(
&bank_forks.read().unwrap().working_bank(),
&Pubkey::default(),
1,
));
let rooted_signature = root_bank
.transfer(1, &mint_keypair, &mint_keypair.pubkey())
.unwrap();
let working_bank = Arc::new(Bank::new_from_parent(&root_bank, &Pubkey::default(), 2));
let non_rooted_signature = working_bank
.transfer(2, &mint_keypair, &mint_keypair.pubkey())
.unwrap();
let failed_signature = {
let blockhash = working_bank.last_blockhash();
let transaction = solana_sdk::system_transaction::transfer(
&mint_keypair,
&Pubkey::default(),
1,
blockhash,
);
let signature = transaction.signatures[0];
working_bank.process_transaction(&transaction).unwrap_err();
signature
};
let mut transactions = HashMap::new();
info!("Expired transactions are dropped..");
transactions.insert(
Signature::default(),
TransactionInfo {
signature: Signature::default(),
wire_transaction: vec![],
last_valid_slot: root_bank.slot() - 1,
},
);
let result = SendTransactionService::process_transactions(
&working_bank,
&root_bank,
&send_socket,
&tpu_address,
&mut transactions,
);
assert!(transactions.is_empty());
assert_eq!(
result,
ProcessTransactionsResult {
expired: 1,
..ProcessTransactionsResult::default()
}
);
info!("Rooted transactions are dropped...");
transactions.insert(
rooted_signature,
TransactionInfo {
signature: rooted_signature,
wire_transaction: vec![],
last_valid_slot: working_bank.slot(),
},
);
let result = SendTransactionService::process_transactions(
&working_bank,
&root_bank,
&send_socket,
&tpu_address,
&mut transactions,
);
assert!(transactions.is_empty());
assert_eq!(
result,
ProcessTransactionsResult {
rooted: 1,
..ProcessTransactionsResult::default()
}
);
info!("Failed transactions are dropped...");
transactions.insert(
failed_signature,
TransactionInfo {
signature: failed_signature,
wire_transaction: vec![],
last_valid_slot: working_bank.slot(),
},
);
let result = SendTransactionService::process_transactions(
&working_bank,
&root_bank,
&send_socket,
&tpu_address,
&mut transactions,
);
assert!(transactions.is_empty());
assert_eq!(
result,
ProcessTransactionsResult {
failed: 1,
..ProcessTransactionsResult::default()
}
);
info!("Non-rooted transactions are kept...");
transactions.insert(
non_rooted_signature,
TransactionInfo {
signature: non_rooted_signature,
wire_transaction: vec![],
last_valid_slot: working_bank.slot(),
},
);
let result = SendTransactionService::process_transactions(
&working_bank,
&root_bank,
&send_socket,
&tpu_address,
&mut transactions,
);
assert_eq!(transactions.len(), 1);
assert_eq!(
result,
ProcessTransactionsResult {
retained: 1,
..ProcessTransactionsResult::default()
}
);
transactions.clear();
info!("Unknown transactions are retried...");
transactions.insert(
Signature::default(),
TransactionInfo {
signature: Signature::default(),
wire_transaction: vec![],
last_valid_slot: working_bank.slot(),
},
);
let result = SendTransactionService::process_transactions(
&working_bank,
&root_bank,
&send_socket,
&tpu_address,
&mut transactions,
);
assert_eq!(transactions.len(), 1);
assert_eq!(
result,
ProcessTransactionsResult {
retried: 1,
..ProcessTransactionsResult::default()
}
);
}
}