568 lines
22 KiB
Rust
568 lines
22 KiB
Rust
//! The edge worker in Rust (REBUILD.md, part 2; commands/edge_node.ts): leases
|
||
//! ranges from the coordinator, reads their XOVER chunks from its stream,
|
||
//! indexes them (the same RangeIndexer as edge-bench, kept identical to
|
||
//! the TypeScript by check.ts) and posts the batches. One range per thread.
|
||
//!
|
||
//! COORDINATOR_URL=… NODE_TOKEN=… edge-node [--threads N] [--batch-articles 500000] [--ranges N] [--max-mbit M]
|
||
//!
|
||
//! SIGTERM/SIGINT: each thread gives its range back after the current chunk
|
||
//! (the next worker resumes at the last stored batch).
|
||
|
||
use edge::indexer::{Batch, RangeIndexer};
|
||
use edge::names::Rules;
|
||
use edge::wire;
|
||
use flate2::write::GzEncoder;
|
||
use serde::Deserialize;
|
||
use std::collections::HashMap;
|
||
use std::io::{Read, Write};
|
||
use std::sync::atomic::{AtomicBool, AtomicI64, Ordering};
|
||
use std::sync::mpsc::{sync_channel, Receiver};
|
||
use std::sync::{Arc, Mutex};
|
||
use std::time::{Duration, Instant};
|
||
|
||
#[global_allocator]
|
||
static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
|
||
|
||
/// A batch is posted once this many files (completed, or cut at an edge) wait, whatever its articles (commands/edge_node.ts).
|
||
const MAX_PENDING_FILES: usize = 100_000;
|
||
const RETRIES: u32 = 8;
|
||
const IDLE: Duration = Duration::from_secs(30);
|
||
/// Without a post for this long, the range's lease is kept alive by a heartbeat.
|
||
const HEARTBEAT: Duration = Duration::from_secs(60);
|
||
|
||
fn log(level: &str, message: &str) {
|
||
println!("[ {level} ] {message}");
|
||
}
|
||
|
||
#[derive(Deserialize)]
|
||
struct LeaseJson {
|
||
range: RangeJson,
|
||
rules: RulesJson,
|
||
}
|
||
|
||
#[derive(Deserialize)]
|
||
struct RangeJson {
|
||
id: i64,
|
||
group: String,
|
||
start: i64,
|
||
end: i64,
|
||
next: i64,
|
||
}
|
||
|
||
#[derive(Deserialize)]
|
||
#[serde(rename_all = "camelCase")]
|
||
struct RulesJson {
|
||
version: i64,
|
||
priorities: HashMap<String, u32>,
|
||
#[serde(default)]
|
||
dropped_signatures: Vec<String>,
|
||
#[serde(default)]
|
||
dropped_tools: Option<Vec<String>>,
|
||
#[serde(default)]
|
||
per_article_max_parts: Option<u32>,
|
||
#[serde(default)]
|
||
sample_percent: Option<f64>,
|
||
#[serde(default)]
|
||
drop_executables: Option<bool>,
|
||
#[serde(default)]
|
||
dropped_posters: Option<Vec<String>>,
|
||
}
|
||
|
||
impl RulesJson {
|
||
fn rules(self) -> Rules {
|
||
let mut rules = Rules::defaults(self.priorities.into_iter().collect());
|
||
rules.version = self.version;
|
||
rules.dropped_signatures = self.dropped_signatures.into_iter().collect();
|
||
if let Some(tools) = self.dropped_tools {
|
||
rules.dropped_tools = tools.into_iter().collect();
|
||
}
|
||
if let Some(n) = self.per_article_max_parts {
|
||
rules.per_article_max_parts = n;
|
||
}
|
||
if let Some(p) = self.sample_percent {
|
||
rules.sample_percent = p;
|
||
}
|
||
if let Some(e) = self.drop_executables {
|
||
rules.drop_executables = e;
|
||
}
|
||
if let Some(posters) = self.dropped_posters {
|
||
rules.dropped_posters = posters;
|
||
}
|
||
rules
|
||
}
|
||
}
|
||
|
||
#[derive(Deserialize)]
|
||
struct StoredJson {
|
||
releases: u64,
|
||
candidates: u64,
|
||
}
|
||
|
||
#[derive(Debug)]
|
||
enum ApiError {
|
||
/// 409: the range is no longer this node's (or the batch was stale): stop it, don't give it back.
|
||
LeaseLost(String),
|
||
/// 413: the batch was over the server's body limit; the range is tried again in smaller batches.
|
||
TooLarge(String),
|
||
Other(String),
|
||
}
|
||
|
||
impl std::fmt::Display for ApiError {
|
||
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
|
||
match self {
|
||
ApiError::LeaseLost(m) | ApiError::TooLarge(m) | ApiError::Other(m) => f.write_str(m),
|
||
}
|
||
}
|
||
}
|
||
|
||
/// The coordinator's node API, with retries for network trouble and 5xx (as the TypeScript Api).
|
||
struct Api {
|
||
base: String,
|
||
token: String,
|
||
agent: ureq::Agent,
|
||
}
|
||
|
||
impl Api {
|
||
fn new(base: &str, token: &str) -> Self {
|
||
let agent: ureq::Agent = ureq::Agent::config_builder()
|
||
.http_status_as_error(false)
|
||
.timeout_connect(Some(Duration::from_secs(30)))
|
||
.timeout_recv_response(Some(Duration::from_secs(600)))
|
||
.build()
|
||
.into();
|
||
Api { base: base.trim_end_matches('/').to_string(), token: token.to_string(), agent }
|
||
}
|
||
|
||
/// A request, retried; `body`: JSON bytes (gzipped when `gzip`).
|
||
fn request(&self, method: &str, path: &str, body: Option<&[u8]>, gzip: bool, accept: &str) -> Result<ureq::http::Response<ureq::Body>, ApiError> {
|
||
let url = format!("{}/api/v1/node/{path}", self.base);
|
||
let auth = format!("Bearer {}", self.token);
|
||
for attempt in 1..=RETRIES {
|
||
let result = match method {
|
||
"GET" => self.agent.get(&url).header("Authorization", &auth).header("Accept", accept).call(),
|
||
_ => {
|
||
let mut request = self.agent.post(&url).header("Authorization", &auth).header("Accept", accept).header("Content-Type", "application/json");
|
||
if gzip {
|
||
request = request.header("Content-Encoding", "gzip");
|
||
}
|
||
request.send(body.unwrap_or(b"{}"))
|
||
}
|
||
};
|
||
match result {
|
||
Ok(mut response) => {
|
||
let status = response.status().as_u16();
|
||
if status == 409 {
|
||
let text = response.body_mut().read_to_string().unwrap_or_default();
|
||
let message = serde_json::from_str::<serde_json::Value>(&text).ok().and_then(|v| v["error"].as_str().map(str::to_string)).unwrap_or_else(|| "lease lost".into());
|
||
return Err(ApiError::LeaseLost(message));
|
||
}
|
||
if status < 500 {
|
||
return Ok(response);
|
||
}
|
||
if attempt == RETRIES {
|
||
return Err(ApiError::Other(format!("{path}: HTTP {status}")));
|
||
}
|
||
}
|
||
Err(error) => {
|
||
if attempt == RETRIES {
|
||
return Err(ApiError::Other(format!("{path}: {error}")));
|
||
}
|
||
}
|
||
}
|
||
std::thread::sleep(Duration::from_millis(60_000.min(1000 * 2u64.pow(attempt))));
|
||
}
|
||
unreachable!()
|
||
}
|
||
|
||
fn lease(&self) -> Result<Option<LeaseJson>, ApiError> {
|
||
let mut response = self.request("POST", "lease", None, false, "application/json")?;
|
||
match response.status().as_u16() {
|
||
204 => Ok(None),
|
||
200 => {
|
||
let text = response.body_mut().read_to_string().map_err(|e| ApiError::Other(format!("lease: {e}")))?;
|
||
serde_json::from_str(&text).map(Some).map_err(|e| ApiError::Other(format!("lease: {e}")))
|
||
}
|
||
status => Err(ApiError::Other(format!("lease: HTTP {status}"))),
|
||
}
|
||
}
|
||
|
||
fn stream(&self, range: i64) -> Result<Box<dyn Read + Send>, ApiError> {
|
||
let response = self.request("GET", &format!("ranges/{range}/stream"), None, false, "application/octet-stream")?;
|
||
if response.status().as_u16() != 200 {
|
||
return Err(ApiError::Other(format!("stream: HTTP {}", response.status())));
|
||
}
|
||
Ok(Box::new(response.into_body().into_reader()))
|
||
}
|
||
|
||
/// Posts a batch (gzipped JSON): the releases and candidates stored, and the bytes posted.
|
||
fn batch(&self, range: i64, batch: &Batch) -> Result<(u64, u64, usize), ApiError> {
|
||
let json = wire::to_json(batch);
|
||
let mut gz = GzEncoder::new(Vec::with_capacity(json.len() / 3), flate2::Compression::new(1));
|
||
gz.write_all(&json).unwrap();
|
||
let body = gz.finish().unwrap();
|
||
let mut response = self.request("POST", &format!("ranges/{range}/batches"), Some(&body), true, "application/json")?;
|
||
if response.status().as_u16() == 413 {
|
||
return Err(ApiError::TooLarge(format!("batch: HTTP {} ({} MB gzipped, {} MB of JSON)", response.status(), body.len() / 1_000_000, json.len() / 1_000_000)));
|
||
}
|
||
if response.status().as_u16() != 200 {
|
||
return Err(ApiError::Other(format!("batch: HTTP {}", response.status())));
|
||
}
|
||
let text = response.body_mut().read_to_string().map_err(|e| ApiError::Other(format!("batch: {e}")))?;
|
||
let stored: StoredJson = serde_json::from_str(&text).map_err(|e| ApiError::Other(format!("batch: {e}")))?;
|
||
Ok((stored.releases, stored.candidates, body.len()))
|
||
}
|
||
|
||
fn call(&self, range: i64, action: &str) -> Result<(), ApiError> {
|
||
let response = self.request("POST", &format!("ranges/{range}/{action}"), None, false, "application/json")?;
|
||
match response.status().as_u16() {
|
||
200..=299 => Ok(()),
|
||
status => Err(ApiError::Other(format!("{action}: HTTP {status}"))),
|
||
}
|
||
}
|
||
|
||
fn corrupt(&self, range: i64, from: i64) -> Result<(), ApiError> {
|
||
let body = format!("{{\"from\":{from}}}");
|
||
let response = self.request("POST", &format!("ranges/{range}/corrupt"), Some(body.as_bytes()), false, "application/json")?;
|
||
match response.status().as_u16() {
|
||
200..=299 => Ok(()),
|
||
status => Err(ApiError::Other(format!("corrupt: HTTP {status}"))),
|
||
}
|
||
}
|
||
}
|
||
|
||
/// One frame of the range's stream: a chunk inflated (or why it didn't), or a keep-alive.
|
||
enum Frame {
|
||
Chunk { from: i64, to: i64, text: Result<Vec<u8>, String> },
|
||
KeepAlive,
|
||
End,
|
||
Failed(String),
|
||
}
|
||
|
||
/// Reads frames (8 B from, 8 B to, 4 B length, data) and inflates them, one frame ahead of the indexer.
|
||
fn read_frames(mut stream: Box<dyn Read + Send>, bytes_per_second: Option<f64>) -> Receiver<Frame> {
|
||
let (tx, rx) = sync_channel::<Frame>(2);
|
||
std::thread::spawn(move || {
|
||
let mut decompressor = libdeflater::Decompressor::new();
|
||
let started = Instant::now();
|
||
let mut read_bytes = 0f64;
|
||
loop {
|
||
let mut head = [0u8; 20];
|
||
match read_full(&mut stream, &mut head) {
|
||
Ok(0) => {
|
||
let _ = tx.send(Frame::End);
|
||
return;
|
||
}
|
||
Ok(20) => {}
|
||
Ok(n) => {
|
||
let _ = tx.send(Frame::Failed(format!("stream ended inside a frame ({n} bytes)")));
|
||
return;
|
||
}
|
||
Err(e) => {
|
||
let _ = tx.send(Frame::Failed(format!("stream: {e}")));
|
||
return;
|
||
}
|
||
}
|
||
let from = u64::from_be_bytes(head[0..8].try_into().unwrap()) as i64;
|
||
let to = u64::from_be_bytes(head[8..16].try_into().unwrap()) as i64;
|
||
let length = u32::from_be_bytes(head[16..20].try_into().unwrap()) as usize;
|
||
let mut data = vec![0u8; length];
|
||
match read_full(&mut stream, &mut data) {
|
||
Ok(n) if n == length => {}
|
||
Ok(n) => {
|
||
let _ = tx.send(Frame::Failed(format!("stream ended inside a frame ({} of {length} bytes)", n)));
|
||
return;
|
||
}
|
||
Err(e) => {
|
||
let _ = tx.send(Frame::Failed(format!("stream: {e}")));
|
||
return;
|
||
}
|
||
}
|
||
// --max-mbit: read no faster than the cap (TCP holds the coordinator back).
|
||
if let Some(rate) = bytes_per_second {
|
||
read_bytes += (20 + length) as f64;
|
||
let due = Duration::from_secs_f64(((read_bytes - rate) / rate).max(0.0));
|
||
let elapsed = started.elapsed();
|
||
if due > elapsed {
|
||
std::thread::sleep(due - elapsed);
|
||
}
|
||
}
|
||
let frame = if length == 0 && from == 0 {
|
||
Frame::KeepAlive
|
||
} else {
|
||
Frame::Chunk { from, to, text: inflate(&data, &mut decompressor) }
|
||
};
|
||
if tx.send(frame).is_err() {
|
||
return;
|
||
}
|
||
}
|
||
});
|
||
rx
|
||
}
|
||
|
||
/// Reads until `buf` is full or the stream ends: the bytes read.
|
||
fn read_full(stream: &mut dyn Read, buf: &mut [u8]) -> std::io::Result<usize> {
|
||
let mut at = 0;
|
||
while at < buf.len() {
|
||
match stream.read(&mut buf[at..]) {
|
||
Ok(0) => break,
|
||
Ok(n) => at += n,
|
||
Err(e) if e.kind() == std::io::ErrorKind::Interrupted => continue,
|
||
Err(e) => return Err(e),
|
||
}
|
||
}
|
||
Ok(at)
|
||
}
|
||
|
||
/// A chunk as the news server sent it (zlib; gzip too), whole.
|
||
fn inflate(raw: &[u8], d: &mut libdeflater::Decompressor) -> Result<Vec<u8>, String> {
|
||
let mut out = vec![0u8; raw.len() * 4 + 4096];
|
||
loop {
|
||
let result = if raw.starts_with(&[0x1f, 0x8b]) { d.gzip_decompress(raw, &mut out) } else { d.zlib_decompress(raw, &mut out) };
|
||
match result {
|
||
Ok(n) => {
|
||
out.truncate(n);
|
||
return Ok(out);
|
||
}
|
||
Err(libdeflater::DecompressionError::InsufficientSpace) => out.resize(out.len() * 2, 0),
|
||
Err(e) => return Err(e.to_string()),
|
||
}
|
||
}
|
||
}
|
||
|
||
struct Config {
|
||
batch_articles: i64,
|
||
bytes_per_second: Option<f64>,
|
||
/// Ranges whose batch was too large (413), and how much smaller their batches are now (halved each time).
|
||
smaller: Mutex<HashMap<i64, i64>>,
|
||
}
|
||
|
||
impl Config {
|
||
/// Articles and pending files a batch of this range is posted at.
|
||
fn limits(&self, range: i64) -> (i64, usize) {
|
||
let divisor = self.smaller.lock().unwrap().get(&range).copied().unwrap_or(1);
|
||
(self.batch_articles / divisor, MAX_PENDING_FILES / divisor as usize)
|
||
}
|
||
}
|
||
|
||
#[derive(Default)]
|
||
struct Totals {
|
||
headers: u64,
|
||
releases: u64,
|
||
candidates: u64,
|
||
bytes: usize,
|
||
post_ms: u128,
|
||
}
|
||
|
||
/// One leased range, start to finish (commands/edge_node.ts runRange).
|
||
fn run_range(api: &Arc<Api>, lease: LeaseJson, config: &Config, stopping: &AtomicBool) {
|
||
let range = lease.range;
|
||
let started = Instant::now();
|
||
let mut indexer = RangeIndexer::new(&range.group, range.start, range.end, range.next, lease.rules.rules(), 5);
|
||
let totals = Arc::new(Mutex::new(Totals::default()));
|
||
let post_error: Arc<Mutex<Option<ApiError>>> = Arc::new(Mutex::new(None));
|
||
let last_contact = Arc::new(AtomicI64::new(0));
|
||
let since = Instant::now();
|
||
// Posts in order on their own thread; the indexer goes on meanwhile (one batch may wait).
|
||
let (post_tx, post_rx) = sync_channel::<Batch>(1);
|
||
let poster = {
|
||
let (api, totals, post_error, last_contact) = (api.clone(), totals.clone(), post_error.clone(), last_contact.clone());
|
||
std::thread::spawn(move || {
|
||
for batch in post_rx {
|
||
if post_error.lock().unwrap().is_some() {
|
||
continue;
|
||
}
|
||
let at = Instant::now();
|
||
match api.batch(range.id, &batch) {
|
||
Ok((releases, candidates, bytes)) => {
|
||
let mut t = totals.lock().unwrap();
|
||
t.post_ms += at.elapsed().as_millis();
|
||
t.bytes += bytes;
|
||
t.headers += batch.headers;
|
||
t.releases += releases;
|
||
t.candidates += candidates;
|
||
last_contact.store(since.elapsed().as_millis() as i64, Ordering::Relaxed);
|
||
}
|
||
Err(e) => *post_error.lock().unwrap() = Some(e),
|
||
}
|
||
}
|
||
})
|
||
};
|
||
let frames = match api.stream(range.id) {
|
||
Ok(stream) => read_frames(stream, config.bytes_per_second),
|
||
Err(e) => {
|
||
log("error", &format!("Range {} failed: {e}; giving it back.", range.id));
|
||
let _ = api.call(range.id, "release");
|
||
return;
|
||
}
|
||
};
|
||
let (batch_articles, max_pending) = config.limits(range.id);
|
||
let mut batch_from = range.next;
|
||
let mut reached_end = false;
|
||
let mut corrupt: Option<(i64, i64, String)> = None;
|
||
let mut failure: Option<String> = None;
|
||
for frame in frames.iter() {
|
||
if stopping.load(Ordering::Relaxed) || post_error.lock().unwrap().is_some() {
|
||
break;
|
||
}
|
||
// Keep the lease while no batch goes out (slow ranges wait for the spool).
|
||
if since.elapsed().as_millis() as i64 - last_contact.load(Ordering::Relaxed) > HEARTBEAT.as_millis() as i64 {
|
||
last_contact.store(since.elapsed().as_millis() as i64, Ordering::Relaxed);
|
||
let _ = api.call(range.id, "heartbeat");
|
||
}
|
||
match frame {
|
||
Frame::KeepAlive => continue,
|
||
Frame::End => break,
|
||
Frame::Failed(e) => {
|
||
failure = Some(e);
|
||
break;
|
||
}
|
||
Frame::Chunk { from, to, text } => {
|
||
let data = match text {
|
||
Ok(data) => data,
|
||
Err(e) => {
|
||
corrupt = Some((from, to, e));
|
||
break;
|
||
}
|
||
};
|
||
indexer.add_text(&String::from_utf8_lossy(&data), to + 1);
|
||
reached_end = to >= range.end;
|
||
if reached_end {
|
||
indexer.finish();
|
||
}
|
||
if reached_end || to + 1 - batch_from >= batch_articles || indexer.pending() >= max_pending {
|
||
if post_tx.send(indexer.take()).is_err() {
|
||
break;
|
||
}
|
||
batch_from = to + 1;
|
||
}
|
||
if reached_end {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
drop(post_tx);
|
||
let _ = poster.join();
|
||
let post_error = post_error.lock().unwrap().take();
|
||
if let Some((from, to, e)) = corrupt {
|
||
// The server's compressed reply cut short: reported, fetched plain next time.
|
||
log("warn", &format!("Range {}: chunk {from}–{to} doesn't inflate ({e}); reported, the range goes back", range.id));
|
||
let _ = api.corrupt(range.id, from);
|
||
return;
|
||
}
|
||
match post_error {
|
||
Some(ApiError::LeaseLost(m)) => {
|
||
log("warn", &format!("Range {}: {m}", range.id));
|
||
return;
|
||
}
|
||
Some(ApiError::TooLarge(m)) => {
|
||
// Batches already stored stay; from the resume point on, half the size (a batch is at least a chunk).
|
||
let divisor = {
|
||
let mut smaller = config.smaller.lock().unwrap();
|
||
let d = smaller.entry(range.id).or_insert(1);
|
||
*d = (*d * 2).min(64);
|
||
*d
|
||
};
|
||
log("warn", &format!("Range {}: {m}; giving it back, its batches 1/{divisor} the size from now on.", range.id));
|
||
let _ = api.call(range.id, "release");
|
||
return;
|
||
}
|
||
Some(ApiError::Other(m)) => {
|
||
log("error", &format!("Range {} failed: {m}; giving it back.", range.id));
|
||
let _ = api.call(range.id, "release");
|
||
return;
|
||
}
|
||
None => {}
|
||
}
|
||
if let Some(e) = failure {
|
||
log("error", &format!("Range {} failed: {e}; giving it back.", range.id));
|
||
let _ = api.call(range.id, "release");
|
||
return;
|
||
}
|
||
if !reached_end {
|
||
log("info", &format!("Range {}: giving it back.", range.id));
|
||
let _ = api.call(range.id, "release");
|
||
return;
|
||
}
|
||
match api.call(range.id, "finish") {
|
||
Ok(()) => {
|
||
let t = totals.lock().unwrap();
|
||
let seconds = started.elapsed().as_secs_f64();
|
||
log(
|
||
"info",
|
||
&format!(
|
||
"{} {}–{}: {} headers in {:.0} s ({:.0}/s), {} release chunks, {} probe candidates; posted {:.1} MB in {:.1} s.",
|
||
range.group,
|
||
range.start,
|
||
range.end,
|
||
t.headers,
|
||
seconds,
|
||
t.headers as f64 / seconds,
|
||
t.releases,
|
||
t.candidates,
|
||
t.bytes as f64 / 1e6,
|
||
t.post_ms as f64 / 1000.0
|
||
),
|
||
);
|
||
}
|
||
Err(e) => log("warn", &format!("Range {}: {e}", range.id)),
|
||
}
|
||
}
|
||
|
||
fn main() {
|
||
let args: Vec<String> = std::env::args().collect();
|
||
let flag = |name: &str| args.iter().position(|a| a == name).and_then(|i| args.get(i + 1)).cloned();
|
||
let url = std::env::var("COORDINATOR_URL").expect("COORDINATOR_URL is needed");
|
||
let token = std::env::var("NODE_TOKEN").expect("NODE_TOKEN is needed");
|
||
let threads: usize = flag("--threads")
|
||
.or_else(|| std::env::var("EDGE_PROCESSES").ok())
|
||
.map(|v| v.parse().unwrap())
|
||
.filter(|&n| n > 0)
|
||
.unwrap_or_else(|| std::thread::available_parallelism().map(|n| n.get()).unwrap_or(1));
|
||
let ranges: Option<usize> = flag("--ranges").map(|v| v.parse().unwrap());
|
||
let max_mbit: Option<f64> = flag("--max-mbit").or_else(|| std::env::var("EDGE_MAX_MBIT").ok()).map(|v| v.parse().unwrap()).filter(|&m: &f64| m > 0.0);
|
||
let config = Arc::new(Config {
|
||
batch_articles: flag("--batch-articles").map(|v| v.parse().unwrap()).unwrap_or(500_000),
|
||
// The node's cap, shared by its threads.
|
||
bytes_per_second: max_mbit.map(|m| m * 1e6 / 8.0 / threads as f64),
|
||
smaller: Mutex::new(HashMap::new()),
|
||
});
|
||
let stopping = Arc::new(AtomicBool::new(false));
|
||
signal_hook::flag::register(signal_hook::consts::SIGTERM, stopping.clone()).unwrap();
|
||
signal_hook::flag::register(signal_hook::consts::SIGINT, stopping.clone()).unwrap();
|
||
let api = Arc::new(Api::new(&url, &token));
|
||
log("info", &format!("Starting {threads} worker threads{}.", max_mbit.map(|m| format!(" (download cap {m} Mbit/s)")).unwrap_or_default()));
|
||
let workers: Vec<_> = (0..threads)
|
||
.map(|_| {
|
||
let (api, config, stopping) = (api.clone(), config.clone(), stopping.clone());
|
||
std::thread::spawn(move || {
|
||
let mut done = 0;
|
||
while !stopping.load(Ordering::Relaxed) && ranges.is_none_or(|n| done < n) {
|
||
match api.lease() {
|
||
Ok(Some(lease)) => {
|
||
run_range(&api, lease, &config, &stopping);
|
||
done += 1;
|
||
}
|
||
Ok(None) if ranges.is_some() => break,
|
||
Ok(None) => idle(&stopping),
|
||
Err(e) => {
|
||
log("warn", &format!("Lease failed: {e}"));
|
||
idle(&stopping);
|
||
}
|
||
}
|
||
}
|
||
})
|
||
})
|
||
.collect();
|
||
for worker in workers {
|
||
let _ = worker.join();
|
||
}
|
||
}
|
||
|
||
fn idle(stopping: &AtomicBool) {
|
||
let until = Instant::now() + IDLE;
|
||
while Instant::now() < until && !stopping.load(Ordering::Relaxed) {
|
||
std::thread::sleep(Duration::from_millis(500));
|
||
}
|
||
}
|