chore(launcher): refactor logic (#242)

Hopefully it's cleaner
This commit is contained in:
Nicolas Patry 2023-04-26 14:43:36 +02:00 committed by GitHub
parent 7de8a377b0
commit 77758f603b
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 447 additions and 440 deletions

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@ -4,7 +4,6 @@ use std::env;
use std::ffi::OsString;
use std::io::{BufRead, BufReader, Read};
use std::path::Path;
use std::process::ExitCode;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::mpsc::TryRecvError;
use std::sync::Arc;
@ -73,445 +72,6 @@ struct Args {
watermark_delta: Option<f32>,
}
fn main() -> ExitCode {
// Pattern match configuration
let args = Args::parse();
if args.json_output {
tracing_subscriber::fmt().json().init();
} else {
tracing_subscriber::fmt().compact().init();
}
tracing::info!("{:?}", args);
let Args {
model_id,
revision,
sharded,
num_shard,
quantize,
max_concurrent_requests,
max_best_of,
max_stop_sequences,
max_input_length,
max_total_tokens,
max_batch_size,
max_batch_total_tokens,
waiting_served_ratio,
max_waiting_tokens,
port,
shard_uds_path,
master_addr,
master_port,
huggingface_hub_cache,
weights_cache_override,
disable_custom_kernels,
json_output,
otlp_endpoint,
cors_allow_origin,
watermark_gamma,
watermark_delta,
} = args;
// get the number of shards given `sharded` and `num_shard`
let num_shard = if let Some(sharded) = sharded {
// sharded is set
match sharded {
// sharded is set and true
true => {
match num_shard {
None => {
// try to default to the number of available GPUs
tracing::info!("Parsing num_shard from CUDA_VISIBLE_DEVICES");
let n_devices = num_cuda_devices()
.expect("--num-shard and CUDA_VISIBLE_DEVICES are not set");
if n_devices <= 1 {
panic!("`sharded` is true but only found {n_devices} CUDA devices");
}
n_devices
}
Some(num_shard) => {
// we can't have only one shard while sharded
if num_shard <= 1 {
panic!("`sharded` is true but `num_shard` <= 1");
}
num_shard
}
}
}
// sharded is set and false
false => {
let num_shard = num_shard.unwrap_or(1);
// we can't have more than one shard while not sharded
if num_shard != 1 {
panic!("`sharded` is false but `num_shard` != 1");
}
num_shard
}
}
} else {
match num_shard {
// get num_shard from CUDA_VISIBLE_DEVICES or default to a single shard
None => num_cuda_devices().unwrap_or(1),
Some(num_shard) => num_shard,
}
};
if num_shard < 1 {
panic!("`num_shard` cannot be < 1");
}
if num_shard > 1 {
tracing::info!("Sharding model on {num_shard} processes");
}
// Signal handler
let running = Arc::new(AtomicBool::new(true));
let r = running.clone();
ctrlc::set_handler(move || {
r.store(false, Ordering::SeqCst);
})
.expect("Error setting Ctrl-C handler");
// Check if model_id is a local model
let local_path = Path::new(&model_id);
let is_local_model = local_path.exists() && local_path.is_dir();
// Download weights for sharded models
if !is_local_model && weights_cache_override.is_none() && num_shard > 1 {
let mut download_argv = vec![
"text-generation-server".to_string(),
"download-weights".to_string(),
model_id.clone(),
"--extension".to_string(),
".safetensors".to_string(),
"--logger-level".to_string(),
"INFO".to_string(),
"--json-output".to_string(),
];
// Model optional revision
if let Some(ref revision) = revision {
download_argv.push("--revision".to_string());
download_argv.push(revision.to_string())
}
// Copy current process env
let mut env: Vec<(OsString, OsString)> = env::vars_os().collect();
// If huggingface_hub_cache is set, pass it to the shard
// Useful when running inside a docker container
if let Some(ref huggingface_hub_cache) = huggingface_hub_cache {
env.push(("HUGGINGFACE_HUB_CACHE".into(), huggingface_hub_cache.into()));
};
// Enable hf transfer for insane download speeds
let enable_hf_transfer = env::var("HF_HUB_ENABLE_HF_TRANSFER").unwrap_or("1".to_string());
env.push((
"HF_HUB_ENABLE_HF_TRANSFER".into(),
enable_hf_transfer.into(),
));
// Parse Inference API token
if let Ok(api_token) = env::var("HF_API_TOKEN") {
env.push(("HUGGING_FACE_HUB_TOKEN".into(), api_token.into()))
};
// Start process
tracing::info!("Starting download process.");
let mut download_process = match Popen::create(
&download_argv,
PopenConfig {
stdout: Redirection::Pipe,
stderr: Redirection::Pipe,
// Needed for the shutdown procedure
setpgid: true,
env: Some(env),
..Default::default()
},
) {
Ok(p) => p,
Err(err) => {
if let PopenError::IoError(ref err) = err {
if err.kind() == io::ErrorKind::NotFound {
tracing::error!("text-generation-server not found in PATH");
tracing::error!("Please install it with `make install-server`")
}
}
return ExitCode::FAILURE;
}
};
// Redirect STDOUT to the console
let download_stdout = download_process.stdout.take().unwrap();
thread::spawn(move || {
// Enter download tracing span
let stdout = BufReader::new(download_stdout);
let _span = tracing::span!(tracing::Level::INFO, "download").entered();
for line in stdout.lines() {
// Parse loguru logs
if let Ok(log) = serde_json::from_str::<PythonLogMessage>(&line.unwrap()) {
log.trace();
}
}
});
loop {
if let Some(status) = download_process.poll() {
match status {
ExitStatus::Exited(exit_code) => {
if exit_code == 0 {
tracing::info!("Successfully downloaded weights.");
break;
} else {
let mut err = String::new();
download_process
.stderr
.take()
.unwrap()
.read_to_string(&mut err)
.unwrap();
tracing::error!("Download encountered an error: {err}");
return ExitCode::FAILURE;
}
}
_ => {
tracing::error!("Download process exited with an unknown status.");
return ExitCode::FAILURE;
}
}
}
if !running.load(Ordering::SeqCst) {
download_process.terminate().unwrap();
tracing::info!("Waiting for download process to gracefully shutdown");
download_process
.wait_timeout(Duration::from_secs(90))
.unwrap();
tracing::info!("Download process terminated");
return ExitCode::SUCCESS;
}
sleep(Duration::from_millis(100));
}
}
// Shared shutdown bool
let shutdown = Arc::new(Mutex::new(false));
// Shared shutdown channel
// When shutting down, the main thread will wait for all senders to be dropped
let (shutdown_sender, shutdown_receiver) = mpsc::channel();
// Shared channel to track shard status
let (status_sender, status_receiver) = mpsc::channel();
// Start shard processes
for rank in 0..num_shard {
let model_id = model_id.clone();
let revision = revision.clone();
let uds_path = shard_uds_path.clone();
let master_addr = master_addr.clone();
let huggingface_hub_cache = huggingface_hub_cache.clone();
let weights_cache_override = weights_cache_override.clone();
let status_sender = status_sender.clone();
let shutdown = shutdown.clone();
let shutdown_sender = shutdown_sender.clone();
let otlp_endpoint = otlp_endpoint.clone();
thread::spawn(move || {
shard_manager(
model_id,
revision,
quantize,
uds_path,
rank,
num_shard,
master_addr,
master_port,
huggingface_hub_cache,
weights_cache_override,
disable_custom_kernels,
watermark_gamma,
watermark_delta,
otlp_endpoint,
status_sender,
shutdown,
shutdown_sender,
)
});
}
drop(shutdown_sender);
// Wait for shard to start
let mut shard_ready = 0;
while running.load(Ordering::SeqCst) {
match status_receiver.try_recv() {
Ok(ShardStatus::Ready) => {
shard_ready += 1;
if shard_ready == num_shard {
break;
}
}
Err(TryRecvError::Empty) => {
sleep(Duration::from_millis(100));
}
Ok(ShardStatus::Failed((rank, err))) => {
tracing::error!("Shard {} failed to start:\n{}", rank, err);
shutdown_shards(shutdown, &shutdown_receiver);
return ExitCode::FAILURE;
}
Err(TryRecvError::Disconnected) => {
tracing::error!("Shard status channel disconnected");
shutdown_shards(shutdown, &shutdown_receiver);
return ExitCode::FAILURE;
}
}
}
// We might have received a termination signal
if !running.load(Ordering::SeqCst) {
shutdown_shards(shutdown, &shutdown_receiver);
return ExitCode::SUCCESS;
}
// All shard started
// Start webserver
tracing::info!("Starting Webserver");
let mut argv = vec![
"text-generation-router".to_string(),
"--max-concurrent-requests".to_string(),
max_concurrent_requests.to_string(),
"--max-best-of".to_string(),
max_best_of.to_string(),
"--max-stop-sequences".to_string(),
max_stop_sequences.to_string(),
"--max-input-length".to_string(),
max_input_length.to_string(),
"--max-total-tokens".to_string(),
max_total_tokens.to_string(),
"--waiting-served-ratio".to_string(),
waiting_served_ratio.to_string(),
"--max-waiting-tokens".to_string(),
max_waiting_tokens.to_string(),
"--port".to_string(),
port.to_string(),
"--master-shard-uds-path".to_string(),
format!("{shard_uds_path}-0"),
"--tokenizer-name".to_string(),
model_id,
];
// Deprecate max_batch_size
if let Some(max_batch_size) = max_batch_size {
argv.push("--max-batch-size".to_string());
argv.push(max_batch_size.to_string())
} else {
argv.push("--max-batch-total-tokens".to_string());
argv.push(max_batch_total_tokens.to_string())
}
// Model optional revision
if let Some(ref revision) = revision {
argv.push("--revision".to_string());
argv.push(revision.to_string())
}
if json_output {
argv.push("--json-output".to_string());
}
// OpenTelemetry
if let Some(otlp_endpoint) = otlp_endpoint {
argv.push("--otlp-endpoint".to_string());
argv.push(otlp_endpoint);
}
// CORS origins
for origin in cors_allow_origin.into_iter() {
argv.push("--cors-allow-origin".to_string());
argv.push(origin);
}
// Copy current process env
let mut env: Vec<(OsString, OsString)> = env::vars_os().collect();
// Parse Inference API token
if let Ok(api_token) = env::var("HF_API_TOKEN") {
env.push(("HUGGING_FACE_HUB_TOKEN".into(), api_token.into()))
};
let mut webserver = match Popen::create(
&argv,
PopenConfig {
stdout: Redirection::Pipe,
stderr: Redirection::Pipe,
// Needed for the shutdown procedure
setpgid: true,
env: Some(env),
..Default::default()
},
) {
Ok(p) => p,
Err(err) => {
tracing::error!("Failed to start webserver: {}", err);
if let PopenError::IoError(err) = err {
if err.kind() == io::ErrorKind::NotFound {
tracing::error!("text-generation-router not found in PATH");
tracing::error!("Please install it with `make install-router`")
}
} else {
tracing::error!("{}", err);
}
shutdown_shards(shutdown, &shutdown_receiver);
return ExitCode::FAILURE;
}
};
// Redirect STDOUT and STDERR to the console
let webserver_stdout = webserver.stdout.take().unwrap();
let webserver_stderr = webserver.stderr.take().unwrap();
thread::spawn(move || {
let stdout = BufReader::new(webserver_stdout);
let stderr = BufReader::new(webserver_stderr);
for line in stdout.lines() {
println!("{}", line.unwrap());
}
for line in stderr.lines() {
println!("{}", line.unwrap());
}
});
// Default exit code
let mut exit_code = ExitCode::SUCCESS;
while running.load(Ordering::SeqCst) {
if let Ok(ShardStatus::Failed((rank, err))) = status_receiver.try_recv() {
tracing::error!("Shard {rank} failed:\n{err}");
exit_code = ExitCode::FAILURE;
break;
};
match webserver.poll() {
Some(_) => {
tracing::error!("Webserver Crashed");
shutdown_shards(shutdown, &shutdown_receiver);
return ExitCode::FAILURE;
}
None => {
sleep(Duration::from_millis(100));
}
};
}
// Graceful termination
webserver.terminate().unwrap();
tracing::info!("Waiting for webserver to gracefully shutdown");
webserver.wait_timeout(Duration::from_secs(90)).unwrap();
tracing::info!("Webserver terminated");
shutdown_shards(shutdown, &shutdown_receiver);
exit_code
}
#[derive(Debug)]
enum ShardStatus {
Ready,
@ -774,3 +334,450 @@ impl PythonLogMessage {
}
}
}
fn find_num_shards(sharded: Option<bool>, num_shard: Option<usize>) -> usize {
// get the number of shards given `sharded` and `num_shard`
let num_shard = match (sharded, num_shard) {
(Some(true), None) => {
// try to default to the number of available GPUs
tracing::info!("Parsing num_shard from CUDA_VISIBLE_DEVICES");
let n_devices =
num_cuda_devices().expect("--num-shard and CUDA_VISIBLE_DEVICES are not set");
if n_devices <= 1 {
panic!("`sharded` is true but only found {n_devices} CUDA devices");
}
n_devices
}
(Some(true), Some(num_shard)) => {
// we can't have only one shard while sharded
if num_shard <= 1 {
panic!("`sharded` is true but `num_shard` <= 1");
}
num_shard
}
(Some(false), Some(num_shard)) => num_shard,
(Some(false), None) => 1,
(None, None) => num_cuda_devices().unwrap_or(1),
(None, Some(num_shard)) => num_shard,
};
if num_shard < 1 {
panic!("`num_shard` cannot be < 1");
}
num_shard
}
#[derive(Debug)]
enum LauncherError {
DownloadError,
ShardCannotStart,
ShardDisconnected,
ShardFailed,
WebserverFailed,
WebserverCannotStart,
}
fn download_model(args: &Args, running: Arc<AtomicBool>) -> Result<(), LauncherError> {
let mut download_argv = vec![
"text-generation-server".to_string(),
"download-weights".to_string(),
args.model_id.to_string(),
"--extension".to_string(),
".safetensors".to_string(),
"--logger-level".to_string(),
"INFO".to_string(),
"--json-output".to_string(),
];
// Model optional revision
if let Some(revision) = &args.revision {
download_argv.push("--revision".to_string());
download_argv.push(revision.to_string())
}
// Copy current process env
let mut env: Vec<(OsString, OsString)> = env::vars_os().collect();
// If huggingface_hub_cache is set, pass it to the shard
// Useful when running inside a docker container
if let Some(ref huggingface_hub_cache) = args.huggingface_hub_cache {
env.push(("HUGGINGFACE_HUB_CACHE".into(), huggingface_hub_cache.into()));
};
// Enable hf transfer for insane download speeds
let enable_hf_transfer = env::var("HF_HUB_ENABLE_HF_TRANSFER").unwrap_or("1".to_string());
env.push((
"HF_HUB_ENABLE_HF_TRANSFER".into(),
enable_hf_transfer.into(),
));
// Parse Inference API token
if let Ok(api_token) = env::var("HF_API_TOKEN") {
env.push(("HUGGING_FACE_HUB_TOKEN".into(), api_token.into()))
};
// Start process
tracing::info!("Starting download process.");
let mut download_process = match Popen::create(
&download_argv,
PopenConfig {
stdout: Redirection::Pipe,
stderr: Redirection::Pipe,
// Needed for the shutdown procedure
setpgid: true,
env: Some(env),
..Default::default()
},
) {
Ok(p) => p,
Err(err) => {
if let PopenError::IoError(ref err) = err {
if err.kind() == io::ErrorKind::NotFound {
tracing::error!("text-generation-server not found in PATH");
tracing::error!("Please install it with `make install-server`")
}
}
return Err(LauncherError::DownloadError);
}
};
// Redirect STDOUT to the console
let download_stdout = download_process.stdout.take().unwrap();
thread::spawn(move || {
// Enter download tracing span
let stdout = BufReader::new(download_stdout);
let _span = tracing::span!(tracing::Level::INFO, "download").entered();
for line in stdout.lines() {
// Parse loguru logs
if let Ok(log) = serde_json::from_str::<PythonLogMessage>(&line.unwrap()) {
log.trace();
}
}
});
loop {
if let Some(status) = download_process.poll() {
match status {
ExitStatus::Exited(exit_code) => {
if exit_code == 0 {
tracing::info!("Successfully downloaded weights.");
break;
} else {
let mut err = String::new();
download_process
.stderr
.take()
.unwrap()
.read_to_string(&mut err)
.unwrap();
tracing::error!("Download encountered an error: {err}");
return Err(LauncherError::DownloadError);
}
}
_ => {
tracing::error!("Download process exited with an unknown status.");
return Err(LauncherError::DownloadError);
}
}
}
if !running.load(Ordering::SeqCst) {
download_process.terminate().unwrap();
tracing::info!("Waiting for download process to gracefully shutdown");
download_process
.wait_timeout(Duration::from_secs(90))
.unwrap();
tracing::info!("Download process terminated");
return Ok(());
}
sleep(Duration::from_millis(100));
}
Ok(())
}
fn spawn_shards(
num_shard: usize,
args: &Args,
shutdown: Arc<Mutex<bool>>,
shutdown_receiver: &mpsc::Receiver<()>,
shutdown_sender: mpsc::Sender<()>,
status_receiver: &mpsc::Receiver<ShardStatus>,
status_sender: mpsc::Sender<ShardStatus>,
running: Arc<AtomicBool>,
) -> Result<(), LauncherError> {
// Start shard processes
for rank in 0..num_shard {
let model_id = args.model_id.clone();
let revision = args.revision.clone();
let uds_path = args.shard_uds_path.clone();
let master_addr = args.master_addr.clone();
let huggingface_hub_cache = args.huggingface_hub_cache.clone();
let weights_cache_override = args.weights_cache_override.clone();
let status_sender = status_sender.clone();
let shutdown = shutdown.clone();
let shutdown_sender = shutdown_sender.clone();
let otlp_endpoint = args.otlp_endpoint.clone();
let quantize = args.quantize.clone();
let master_port = args.master_port.clone();
let disable_custom_kernels = args.disable_custom_kernels.clone();
let watermark_gamma = args.watermark_gamma.clone();
let watermark_delta = args.watermark_delta.clone();
thread::spawn(move || {
shard_manager(
model_id,
revision,
quantize,
uds_path,
rank,
num_shard,
master_addr,
master_port,
huggingface_hub_cache,
weights_cache_override,
disable_custom_kernels,
watermark_gamma,
watermark_delta,
otlp_endpoint,
status_sender,
shutdown,
shutdown_sender,
)
});
}
drop(shutdown_sender);
// Wait for shard to start
let mut shard_ready = 0;
while running.load(Ordering::SeqCst) {
match status_receiver.try_recv() {
Ok(ShardStatus::Ready) => {
shard_ready += 1;
if shard_ready == num_shard {
break;
}
}
Err(TryRecvError::Empty) => {
sleep(Duration::from_millis(100));
}
Ok(ShardStatus::Failed((rank, err))) => {
tracing::error!("Shard {} failed to start:\n{}", rank, err);
shutdown_shards(shutdown, &shutdown_receiver);
return Err(LauncherError::ShardCannotStart);
}
Err(TryRecvError::Disconnected) => {
tracing::error!("Shard status channel disconnected");
shutdown_shards(shutdown, &shutdown_receiver);
return Err(LauncherError::ShardDisconnected);
}
}
}
Ok(())
}
fn spawn_webserver(
args: Args,
shutdown: Arc<Mutex<bool>>,
shutdown_receiver: &mpsc::Receiver<()>,
) -> Result<Popen, LauncherError> {
// All shard started
// Start webserver
tracing::info!("Starting Webserver");
let mut argv = vec![
"text-generation-router".to_string(),
"--max-concurrent-requests".to_string(),
args.max_concurrent_requests.to_string(),
"--max-best-of".to_string(),
args.max_best_of.to_string(),
"--max-stop-sequences".to_string(),
args.max_stop_sequences.to_string(),
"--max-input-length".to_string(),
args.max_input_length.to_string(),
"--max-total-tokens".to_string(),
args.max_total_tokens.to_string(),
"--waiting-served-ratio".to_string(),
args.waiting_served_ratio.to_string(),
"--max-waiting-tokens".to_string(),
args.max_waiting_tokens.to_string(),
"--port".to_string(),
args.port.to_string(),
"--master-shard-uds-path".to_string(),
format!("{}-0", args.shard_uds_path),
"--tokenizer-name".to_string(),
args.model_id,
];
// Deprecate max_batch_size
if let Some(max_batch_size) = args.max_batch_size {
argv.push("--max-batch-size".to_string());
argv.push(max_batch_size.to_string())
} else {
argv.push("--max-batch-total-tokens".to_string());
argv.push(args.max_batch_total_tokens.to_string())
}
// Model optional revision
if let Some(ref revision) = args.revision {
argv.push("--revision".to_string());
argv.push(revision.to_string())
}
if args.json_output {
argv.push("--json-output".to_string());
}
// OpenTelemetry
if let Some(otlp_endpoint) = args.otlp_endpoint {
argv.push("--otlp-endpoint".to_string());
argv.push(otlp_endpoint);
}
// CORS origins
for origin in args.cors_allow_origin.into_iter() {
argv.push("--cors-allow-origin".to_string());
argv.push(origin);
}
// Copy current process env
let mut env: Vec<(OsString, OsString)> = env::vars_os().collect();
// Parse Inference API token
if let Ok(api_token) = env::var("HF_API_TOKEN") {
env.push(("HUGGING_FACE_HUB_TOKEN".into(), api_token.into()))
};
let mut webserver = match Popen::create(
&argv,
PopenConfig {
stdout: Redirection::Pipe,
stderr: Redirection::Pipe,
// Needed for the shutdown procedure
setpgid: true,
env: Some(env),
..Default::default()
},
) {
Ok(p) => p,
Err(err) => {
tracing::error!("Failed to start webserver: {}", err);
if let PopenError::IoError(err) = err {
if err.kind() == io::ErrorKind::NotFound {
tracing::error!("text-generation-router not found in PATH");
tracing::error!("Please install it with `make install-router`")
}
} else {
tracing::error!("{}", err);
}
shutdown_shards(shutdown, &shutdown_receiver);
return Err(LauncherError::WebserverCannotStart);
}
};
// Redirect STDOUT and STDERR to the console
let webserver_stdout = webserver.stdout.take().unwrap();
let webserver_stderr = webserver.stderr.take().unwrap();
thread::spawn(move || {
let stdout = BufReader::new(webserver_stdout);
let stderr = BufReader::new(webserver_stderr);
for line in stdout.lines() {
println!("{}", line.unwrap());
}
for line in stderr.lines() {
println!("{}", line.unwrap());
}
});
Ok(webserver)
}
fn main() -> Result<(), LauncherError> {
// Pattern match configuration
let args = Args::parse();
if args.json_output {
tracing_subscriber::fmt().json().init();
} else {
tracing_subscriber::fmt().compact().init();
}
tracing::info!("{:?}", args);
let num_shard = find_num_shards(args.sharded, args.num_shard);
if num_shard > 1 {
tracing::info!("Sharding model on {num_shard} processes");
}
// Signal handler
let running = Arc::new(AtomicBool::new(true));
let r = running.clone();
ctrlc::set_handler(move || {
r.store(false, Ordering::SeqCst);
})
.expect("Error setting Ctrl-C handler");
// Check if model_id is a local model
let local_path = Path::new(&args.model_id);
let is_local_model = local_path.exists() && local_path.is_dir();
// Download weights for sharded models
if !is_local_model && args.weights_cache_override.is_none() && num_shard > 1 {
download_model(&args, running.clone())?;
}
// Shared shutdown bool
let shutdown = Arc::new(Mutex::new(false));
// Shared shutdown channel
// When shutting down, the main thread will wait for all senders to be dropped
let (shutdown_sender, shutdown_receiver) = mpsc::channel();
// Shared channel to track shard status
let (status_sender, status_receiver) = mpsc::channel();
spawn_shards(
num_shard,
&args,
shutdown.clone(),
&shutdown_receiver,
shutdown_sender,
&status_receiver,
status_sender,
running.clone(),
)?;
// We might have received a termination signal
if !running.load(Ordering::SeqCst) {
shutdown_shards(shutdown, &shutdown_receiver);
return Ok(());
}
let mut webserver = spawn_webserver(args, shutdown.clone(), &shutdown_receiver)?;
// Default exit code
let mut exit_code = Ok(());
while running.load(Ordering::SeqCst) {
if let Ok(ShardStatus::Failed((rank, err))) = status_receiver.try_recv() {
tracing::error!("Shard {rank} failed:\n{err}");
exit_code = Err(LauncherError::ShardFailed);
break;
};
match webserver.poll() {
Some(_) => {
tracing::error!("Webserver Crashed");
shutdown_shards(shutdown, &shutdown_receiver);
return Err(LauncherError::WebserverFailed);
}
None => {
sleep(Duration::from_millis(100));
}
};
}
// Graceful termination
webserver.terminate().unwrap();
tracing::info!("Waiting for webserver to gracefully shutdown");
webserver.wait_timeout(Duration::from_secs(90)).unwrap();
tracing::info!("Webserver terminated");
shutdown_shards(shutdown, &shutdown_receiver);
exit_code
}