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Runtime Ownership hardened

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Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
This commit is contained in:
Alexey
2026-08-30 08:38:03 +03:00
parent 1bb6b0bdda
commit 281f63f940
91 changed files with 3972 additions and 1239 deletions
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src/transport/middle_proxy/pool.rs
+148 -11
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@@ -10,6 +10,7 @@ use std::sync::atomic::{
use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
use arc_swap::ArcSwap;
use parking_lot::Mutex as ParkingMutex;
use tokio::sync::{Mutex, RwLock, Semaphore, mpsc, watch};
use tokio_util::sync::CancellationToken;
@@ -23,6 +24,7 @@ use crate::transport::UpstreamManager;
use super::ConnRegistry;
use super::codec::WriterCommand;
use super::pool_lifecycle::MePoolLifecycle;
const ME_FORCE_CLOSE_SAFETY_FALLBACK_SECS: u64 = 300;
@@ -32,12 +34,6 @@ pub(super) struct RefillDcKey {
pub family: IpFamily,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub(super) struct RefillEndpointKey {
pub dc: i32,
pub addr: SocketAddr,
}
#[derive(Clone)]
pub struct MeWriter {
pub id: u64,
@@ -148,6 +144,18 @@ pub(super) enum WriterContour {
Draining = 2,
}
pub(super) struct WriterOpenReservation<'a> {
counter: Option<&'a AtomicUsize>,
}
impl Drop for WriterOpenReservation<'_> {
fn drop(&mut self) {
if let Some(counter) = self.counter {
counter.fetch_sub(1, Ordering::AcqRel);
}
}
}
impl WriterContour {
pub(super) fn as_u8(self) -> u8 {
self as u8
@@ -265,6 +273,10 @@ pub(super) struct ReinitCore {
pub(super) pending_hardswap_generation: AtomicU64,
pub(super) pending_hardswap_started_at_epoch_secs: AtomicU64,
pub(super) pending_hardswap_map_hash: AtomicU64,
pub(super) scheduler_inflight: AtomicUsize,
pub(super) max_concurrency_effective: AtomicUsize,
pub(super) coordinator: ParkingMutex<ReinitCoordinatorState>,
pub(super) status: ArcSwap<ReinitStatusSnapshot>,
pub(super) hardswap: AtomicBool,
pub(super) me_hardswap_warmup_delay_min_ms: AtomicU64,
pub(super) me_hardswap_warmup_delay_max_ms: AtomicU64,
@@ -272,6 +284,39 @@ pub(super) struct ReinitCore {
pub(super) me_hardswap_warmup_pass_backoff_base_ms: AtomicU64,
}
#[derive(Clone, Debug)]
pub(super) struct ReinitStatusSnapshot {
pub(super) active_generation: u64,
pub(super) warm_generations: Vec<u64>,
pub(super) pending_hardswap_generation: u64,
pub(super) pending_hardswap_started_at_epoch_secs: u64,
pub(super) pending_hardswap_map_hash: u64,
pub(super) inflight: usize,
}
#[derive(Clone, Copy)]
pub(super) struct ReinitPendingState {
pub(super) generation: u64,
pub(super) started_at_epoch_secs: u64,
pub(super) map_hash: u64,
}
#[derive(Clone, Copy)]
pub(super) struct ReinitAttemptState {
pub(super) generation: u64,
pub(super) map_hash: u64,
pub(super) hardswap: bool,
pub(super) committed: bool,
}
pub(super) struct ReinitCoordinatorState {
pub(super) next_attempt_id: u64,
pub(super) active_generation: u64,
pub(super) desired_map_hash: u64,
pub(super) pending: Option<ReinitPendingState>,
pub(super) attempts: HashMap<u64, ReinitAttemptState>,
}
pub(super) struct WriterLifecycleCore {
pub(super) me_keepalive_enabled: bool,
pub(super) me_keepalive_interval: Duration,
@@ -421,6 +466,7 @@ pub struct MePool {
pub(super) floor_runtime: Arc<FloorRuntimeCore>,
pub(super) writer_selection_policy: Arc<WriterSelectionPolicyCore>,
pub(super) transport_policy: Arc<TransportPolicyCore>,
pub(super) lifecycle: MePoolLifecycle,
pub(super) decision: NetworkDecision,
pub(super) upstream: Option<Arc<UpstreamManager>>,
pub(super) rng: Arc<SecureRandom>,
@@ -431,9 +477,12 @@ pub struct MePool {
pub(super) endpoint_dc_map: Arc<RwLock<HashMap<SocketAddr, Option<i32>>>>,
pub(super) default_dc: AtomicI32,
pub(super) next_writer_id: AtomicU64,
pub(super) writer_connect_active_reserved: AtomicUsize,
pub(super) writer_connect_warm_reserved: AtomicUsize,
pub(super) rtt_stats: Arc<Mutex<HashMap<u64, (f64, f64)>>>,
pub(super) refill_inflight: Arc<Mutex<HashSet<RefillEndpointKey>>>,
pub(super) refill_inflight_dc: Arc<Mutex<HashSet<RefillDcKey>>>,
pub(super) refill_states: Arc<ParkingMutex<HashMap<RefillDcKey, Option<SocketAddr>>>>,
pub(super) refill_running: AtomicUsize,
pub(super) refill_pending: AtomicUsize,
pub(super) conn_count: AtomicUsize,
pub(super) draining_active_runtime: AtomicU64,
pub(super) stats: Arc<crate::stats::Stats>,
@@ -573,12 +622,14 @@ impl MePool {
me_route_blocking_send_timeout_ms: u64,
me_route_inline_recovery_attempts: u32,
me_route_inline_recovery_wait_ms: u64,
me_connection_cleanup_capacity: usize,
) -> Arc<Self> {
let endpoint_dc_map = Self::build_endpoint_dc_map_from_maps(&proxy_map_v4, &proxy_map_v6);
let preferred_endpoints_by_dc =
Self::build_preferred_endpoints_by_dc(&decision, &proxy_map_v4, &proxy_map_v6);
let registry = Arc::new(ConnRegistry::with_route_channel_capacity(
let registry = Arc::new(ConnRegistry::with_route_and_cleanup_capacity(
me_route_channel_capacity,
me_connection_cleanup_capacity,
));
registry.update_route_backpressure_policy(
me_route_backpressure_base_timeout_ms,
@@ -587,6 +638,14 @@ impl MePool {
);
let (writer_epoch, _) = watch::channel(0u64);
let now_epoch_secs = Self::now_epoch_secs();
let reinit_status = ReinitStatusSnapshot {
active_generation: 1,
warm_generations: Vec::new(),
pending_hardswap_generation: 0,
pending_hardswap_started_at_epoch_secs: 0,
pending_hardswap_map_hash: 0,
inflight: 0,
};
stats.set_me_writer_byte_budget_limit_bytes(me_writer_byte_budget_bytes);
Arc::new(Self {
routing: Arc::new(RoutingCore {
@@ -603,6 +662,16 @@ impl MePool {
pending_hardswap_generation: AtomicU64::new(0),
pending_hardswap_started_at_epoch_secs: AtomicU64::new(0),
pending_hardswap_map_hash: AtomicU64::new(0),
scheduler_inflight: AtomicUsize::new(0),
max_concurrency_effective: AtomicUsize::new(1),
coordinator: ParkingMutex::new(ReinitCoordinatorState {
next_attempt_id: 1,
active_generation: 1,
desired_map_hash: 0,
pending: None,
attempts: HashMap::new(),
}),
status: ArcSwap::from_pointee(reinit_status),
hardswap: AtomicBool::new(hardswap),
me_hardswap_warmup_delay_min_ms: AtomicU64::new(me_hardswap_warmup_delay_min_ms),
me_hardswap_warmup_delay_max_ms: AtomicU64::new(me_hardswap_warmup_delay_max_ms),
@@ -805,6 +874,7 @@ impl MePool {
me_reader_route_data_wait_ms,
)),
}),
lifecycle: MePoolLifecycle::new(),
decision,
upstream,
rng,
@@ -830,9 +900,12 @@ impl MePool {
endpoint_dc_map: Arc::new(RwLock::new(endpoint_dc_map)),
default_dc: AtomicI32::new(default_dc.unwrap_or(2)),
next_writer_id: AtomicU64::new(1),
writer_connect_active_reserved: AtomicUsize::new(0),
writer_connect_warm_reserved: AtomicUsize::new(0),
rtt_stats: Arc::new(Mutex::new(HashMap::new())),
refill_inflight: Arc::new(Mutex::new(HashSet::new())),
refill_inflight_dc: Arc::new(Mutex::new(HashSet::new())),
refill_states: Arc::new(ParkingMutex::new(HashMap::new())),
refill_running: AtomicUsize::new(0),
refill_pending: AtomicUsize::new(0),
conn_count: AtomicUsize::new(0),
draining_active_runtime: AtomicU64::new(0),
endpoint_quarantine: Arc::new(Mutex::new(HashMap::new())),
@@ -1263,6 +1336,7 @@ impl MePool {
self.translate_our_addr_with_reflection(addr, None)
}
#[allow(dead_code)]
pub fn registry(&self) -> &Arc<ConnRegistry> {
&self.registry
}
@@ -1733,6 +1807,69 @@ impl MePool {
}
}
pub(super) async fn reserve_writer_open(
&self,
contour: WriterContour,
allow_coverage_override: bool,
writer_dc: i32,
) -> Option<WriterOpenReservation<'_>> {
let counter = match contour {
WriterContour::Active => &self.writer_connect_active_reserved,
WriterContour::Warm => &self.writer_connect_warm_reserved,
WriterContour::Draining => {
return Some(WriterOpenReservation { counter: None });
}
};
loop {
if !self
.can_open_writer_for_contour(contour, allow_coverage_override, writer_dc)
.await
{
return None;
}
let (active_writers, warm_writers, _) =
self.non_draining_writer_counts_by_contour().await;
let live = match contour {
WriterContour::Active => active_writers,
WriterContour::Warm => warm_writers,
WriterContour::Draining => 0,
};
let mut limit = match contour {
WriterContour::Active => self.adaptive_floor_active_cap_configured_total(),
WriterContour::Warm => self.adaptive_floor_warm_cap_configured_total(),
WriterContour::Draining => usize::MAX,
};
if contour == WriterContour::Active && allow_coverage_override {
limit = limit
.max(self.active_coverage_required_total().await)
.saturating_add(
self.reconnect_runtime
.me_reconnect_max_concurrent_per_dc
.max(1) as usize,
);
}
let reserved = counter.load(Ordering::Acquire);
if live.saturating_add(reserved) >= limit {
return None;
}
if counter
.compare_exchange_weak(
reserved,
reserved + 1,
Ordering::AcqRel,
Ordering::Acquire,
)
.is_ok()
{
return Some(WriterOpenReservation {
counter: Some(counter),
});
}
}
}
pub(super) fn required_writers_for_dc_with_floor_mode(
&self,
endpoint_count: usize,