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21 changed files with 244 additions and 1471 deletions

302
Cargo.lock generated
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d4d107df263a3013ef9b1879b0df87d706ff80f65a86ea879bd9c31f9b307c2a"
dependencies = [
"proc-macro2",
"quote",
@ -2103,16 +2082,15 @@ checksum = "728a70f3dbaf5bab7f0c4b1ac8d7ae5ea60a4b5549c8a5914361c99147a709d2"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
name = "telemt"
version = "3.3.25"
version = "3.3.19"
dependencies = [
"aes",
"anyhow",
"arc-swap",
"base64",
"bytes",
"cbc",
@ -2165,12 +2143,12 @@ dependencies = [
[[package]]
name = "tempfile"
version = "3.27.0"
version = "3.25.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "32497e9a4c7b38532efcdebeef879707aa9f794296a4f0244f6f69e9bc8574bd"
checksum = "0136791f7c95b1f6dd99f9cc786b91bb81c3800b639b3478e561ddb7be95e5f1"
dependencies = [
"fastrand",
"getrandom 0.4.2",
"getrandom 0.4.1",
"once_cell",
"rustix",
"windows-sys 0.61.2",
@ -2202,7 +2180,7 @@ checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
@ -2213,7 +2191,7 @@ checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
@ -2278,9 +2256,9 @@ dependencies = [
[[package]]
name = "tinyvec"
version = "1.11.0"
version = "1.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3e61e67053d25a4e82c844e8424039d9745781b3fc4f32b8d55ed50f5f667ef3"
checksum = "bfa5fdc3bce6191a1dbc8c02d5c8bffcf557bafa17c124c5264a458f1b0613fa"
dependencies = [
"tinyvec_macros",
]
@ -2293,9 +2271,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
[[package]]
name = "tokio"
version = "1.50.0"
version = "1.49.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "27ad5e34374e03cfffefc301becb44e9dc3c17584f414349ebe29ed26661822d"
checksum = "72a2903cd7736441aac9df9d7688bd0ce48edccaadf181c3b90be801e81d3d86"
dependencies = [
"bytes",
"libc",
@ -2303,7 +2281,7 @@ dependencies = [
"parking_lot",
"pin-project-lite",
"signal-hook-registry",
"socket2 0.6.3",
"socket2 0.6.2",
"tokio-macros",
"tracing",
"windows-sys 0.61.2",
@ -2311,13 +2289,13 @@ dependencies = [
[[package]]
name = "tokio-macros"
version = "2.6.1"
version = "2.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5c55a2eff8b69ce66c84f85e1da1c233edc36ceb85a2058d11b0d6a3c7e7569c"
checksum = "af407857209536a95c8e56f8231ef2c2e2aff839b22e07a1ffcbc617e9db9fa5"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
@ -2431,7 +2409,7 @@ version = "0.6.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d4e6559d53cc268e5031cd8429d05415bc4cb4aefc4aa5d6cc35fbf5b924a1f8"
dependencies = [
"bitflags 2.11.0",
"bitflags 2.10.0",
"bytes",
"futures-util",
"http",
@ -2474,7 +2452,7 @@ checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
@ -2500,9 +2478,9 @@ dependencies = [
[[package]]
name = "tracing-subscriber"
version = "0.3.23"
version = "0.3.22"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cb7f578e5945fb242538965c2d0b04418d38ec25c79d160cd279bf0731c8d319"
checksum = "2f30143827ddab0d256fd843b7a66d164e9f271cfa0dde49142c5ca0ca291f1e"
dependencies = [
"matchers",
"nu-ansi-term",
@ -2536,9 +2514,9 @@ checksum = "eaea85b334db583fe3274d12b4cd1880032beab409c0d774be044d4480ab9a94"
[[package]]
name = "unicode-ident"
version = "1.0.24"
version = "1.0.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
checksum = "537dd038a89878be9b64dd4bd1b260315c1bb94f4d784956b81e27a088d9a09e"
[[package]]
name = "unicode-xid"
@ -2636,9 +2614,9 @@ dependencies = [
[[package]]
name = "wasm-bindgen"
version = "0.2.114"
version = "0.2.108"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6532f9a5c1ece3798cb1c2cfdba640b9b3ba884f5db45973a6f442510a87d38e"
checksum = "64024a30ec1e37399cf85a7ffefebdb72205ca1c972291c51512360d90bd8566"
dependencies = [
"cfg-if",
"once_cell",
@ -2649,9 +2627,9 @@ dependencies = [
[[package]]
name = "wasm-bindgen-futures"
version = "0.4.64"
version = "0.4.58"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e9c5522b3a28661442748e09d40924dfb9ca614b21c00d3fd135720e48b67db8"
checksum = "70a6e77fd0ae8029c9ea0063f87c46fde723e7d887703d74ad2616d792e51e6f"
dependencies = [
"cfg-if",
"futures-util",
@ -2663,9 +2641,9 @@ dependencies = [
[[package]]
name = "wasm-bindgen-macro"
version = "0.2.114"
version = "0.2.108"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "18a2d50fcf105fb33bb15f00e7a77b772945a2ee45dcf454961fd843e74c18e6"
checksum = "008b239d9c740232e71bd39e8ef6429d27097518b6b30bdf9086833bd5b6d608"
dependencies = [
"quote",
"wasm-bindgen-macro-support",
@ -2673,22 +2651,22 @@ dependencies = [
[[package]]
name = "wasm-bindgen-macro-support"
version = "0.2.114"
version = "0.2.108"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "03ce4caeaac547cdf713d280eda22a730824dd11e6b8c3ca9e42247b25c631e3"
checksum = "5256bae2d58f54820e6490f9839c49780dff84c65aeab9e772f15d5f0e913a55"
dependencies = [
"bumpalo",
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
"wasm-bindgen-shared",
]
[[package]]
name = "wasm-bindgen-shared"
version = "0.2.114"
version = "0.2.108"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "75a326b8c223ee17883a4251907455a2431acc2791c98c26279376490c378c16"
checksum = "1f01b580c9ac74c8d8f0c0e4afb04eeef2acf145458e52c03845ee9cd23e3d12"
dependencies = [
"unicode-ident",
]
@ -2721,7 +2699,7 @@ version = "0.244.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "47b807c72e1bac69382b3a6fb3dbe8ea4c0ed87ff5629b8685ae6b9a611028fe"
dependencies = [
"bitflags 2.11.0",
"bitflags 2.10.0",
"hashbrown 0.15.5",
"indexmap",
"semver",
@ -2729,9 +2707,9 @@ dependencies = [
[[package]]
name = "web-sys"
version = "0.3.91"
version = "0.3.85"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "854ba17bb104abfb26ba36da9729addc7ce7f06f5c0f90f3c391f8461cca21f9"
checksum = "312e32e551d92129218ea9a2452120f4aabc03529ef03e4d0d82fb2780608598"
dependencies = [
"js-sys",
"wasm-bindgen",
@ -2795,7 +2773,7 @@ checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
@ -2806,7 +2784,7 @@ checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
@ -3057,9 +3035,9 @@ checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
[[package]]
name = "winnow"
version = "0.7.15"
version = "0.7.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "df79d97927682d2fd8adb29682d1140b343be4ac0f08fd68b7765d9c059d3945"
checksum = "5a5364e9d77fcdeeaa6062ced926ee3381faa2ee02d3eb83a5c27a8825540829"
dependencies = [
"memchr",
]
@ -3094,7 +3072,7 @@ dependencies = [
"heck",
"indexmap",
"prettyplease",
"syn 2.0.117",
"syn 2.0.114",
"wasm-metadata",
"wit-bindgen-core",
"wit-component",
@ -3110,7 +3088,7 @@ dependencies = [
"prettyplease",
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
"wit-bindgen-core",
"wit-bindgen-rust",
]
@ -3122,7 +3100,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
dependencies = [
"anyhow",
"bitflags 2.11.0",
"bitflags 2.10.0",
"indexmap",
"log",
"serde",
@ -3194,28 +3172,28 @@ checksum = "b659052874eb698efe5b9e8cf382204678a0086ebf46982b79d6ca3182927e5d"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
"synstructure 0.13.2",
]
[[package]]
name = "zerocopy"
version = "0.8.47"
version = "0.8.39"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "efbb2a062be311f2ba113ce66f697a4dc589f85e78a4aea276200804cea0ed87"
checksum = "db6d35d663eadb6c932438e763b262fe1a70987f9ae936e60158176d710cae4a"
dependencies = [
"zerocopy-derive",
]
[[package]]
name = "zerocopy-derive"
version = "0.8.47"
version = "0.8.39"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0e8bc7269b54418e7aeeef514aa68f8690b8c0489a06b0136e5f57c4c5ccab89"
checksum = "4122cd3169e94605190e77839c9a40d40ed048d305bfdc146e7df40ab0f3e517"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
@ -3235,7 +3213,7 @@ checksum = "d71e5d6e06ab090c67b5e44993ec16b72dcbaabc526db883a360057678b48502"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
"synstructure 0.13.2",
]
@ -3256,7 +3234,7 @@ checksum = "85a5b4158499876c763cb03bc4e49185d3cccbabb15b33c627f7884f43db852e"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
@ -3289,11 +3267,11 @@ checksum = "eadce39539ca5cb3985590102671f2567e659fca9666581ad3411d59207951f3"
dependencies = [
"proc-macro2",
"quote",
"syn 2.0.117",
"syn 2.0.114",
]
[[package]]
name = "zmij"
version = "1.0.21"
version = "1.0.20"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"
checksum = "4de98dfa5d5b7fef4ee834d0073d560c9ca7b6c46a71d058c48db7960f8cfaf7"

View File

@ -1,6 +1,6 @@
[package]
name = "telemt"
version = "3.3.27"
version = "3.3.25"
edition = "2024"
[dependencies]
@ -40,7 +40,6 @@ tracing = "0.1"
tracing-subscriber = { version = "0.3", features = ["env-filter"] }
parking_lot = "0.12"
dashmap = "5.5"
arc-swap = "1.7"
lru = "0.16"
rand = "0.9"
chrono = { version = "0.4", features = ["serde"] }

View File

@ -19,9 +19,9 @@
### 🇷🇺 RU
#### О релизах
#### Релиз 3.3.15 Semistable
[3.3.27](https://github.com/telemt/telemt/releases/tag/3.3.27) даёт баланс стабильности и передового функционала, а так же последние исправления по безопасности и багам
[3.3.15](https://github.com/telemt/telemt/releases/tag/3.3.15) по итогам работы в продакшн признан одним из самых стабильных и рекомендуется к использованию, когда cutting-edge фичи некритичны!
Будем рады вашему фидбеку и предложениям по улучшению — особенно в части **API**, **статистики**, **UX**
@ -40,9 +40,9 @@
### 🇬🇧 EN
#### About releases
#### Release 3.3.15 Semistable
[3.3.27](https://github.com/telemt/telemt/releases/tag/3.3.27) provides a balance of stability and advanced functionality, as well as the latest security and bug fixes
[3.3.15](https://github.com/telemt/telemt/releases/tag/3.3.15) is, based on the results of his work in production, recognized as one of the most stable and recommended for use when cutting-edge features are not so necessary!
We are looking forward to your feedback and improvement proposals — especially regarding **API**, **statistics**, **UX**

View File

@ -205,16 +205,6 @@ pub(super) struct ZeroPoolData {
pub(super) refill_failed_total: u64,
pub(super) writer_restored_same_endpoint_total: u64,
pub(super) writer_restored_fallback_total: u64,
pub(super) teardown_attempt_total_normal: u64,
pub(super) teardown_attempt_total_hard_detach: u64,
pub(super) teardown_success_total_normal: u64,
pub(super) teardown_success_total_hard_detach: u64,
pub(super) teardown_timeout_total: u64,
pub(super) teardown_escalation_total: u64,
pub(super) teardown_noop_total: u64,
pub(super) teardown_cleanup_side_effect_failures_total: u64,
pub(super) teardown_duration_count_total: u64,
pub(super) teardown_duration_sum_seconds_total: f64,
}
#[derive(Serialize, Clone)]

View File

@ -4,9 +4,6 @@ use std::time::{SystemTime, UNIX_EPOCH};
use serde::Serialize;
use crate::config::ProxyConfig;
use crate::stats::{
MeWriterCleanupSideEffectStep, MeWriterTeardownMode, MeWriterTeardownReason, Stats,
};
use super::ApiShared;
@ -101,50 +98,6 @@ pub(super) struct RuntimeMeQualityCountersData {
pub(super) reconnect_success_total: u64,
}
#[derive(Serialize)]
pub(super) struct RuntimeMeQualityTeardownAttemptData {
pub(super) reason: &'static str,
pub(super) mode: &'static str,
pub(super) total: u64,
}
#[derive(Serialize)]
pub(super) struct RuntimeMeQualityTeardownSuccessData {
pub(super) mode: &'static str,
pub(super) total: u64,
}
#[derive(Serialize)]
pub(super) struct RuntimeMeQualityTeardownSideEffectData {
pub(super) step: &'static str,
pub(super) total: u64,
}
#[derive(Serialize)]
pub(super) struct RuntimeMeQualityTeardownDurationBucketData {
pub(super) le_seconds: &'static str,
pub(super) total: u64,
}
#[derive(Serialize)]
pub(super) struct RuntimeMeQualityTeardownDurationData {
pub(super) mode: &'static str,
pub(super) count: u64,
pub(super) sum_seconds: f64,
pub(super) buckets: Vec<RuntimeMeQualityTeardownDurationBucketData>,
}
#[derive(Serialize)]
pub(super) struct RuntimeMeQualityTeardownData {
pub(super) attempts: Vec<RuntimeMeQualityTeardownAttemptData>,
pub(super) success: Vec<RuntimeMeQualityTeardownSuccessData>,
pub(super) timeout_total: u64,
pub(super) escalation_total: u64,
pub(super) noop_total: u64,
pub(super) cleanup_side_effect_failures: Vec<RuntimeMeQualityTeardownSideEffectData>,
pub(super) duration: Vec<RuntimeMeQualityTeardownDurationData>,
}
#[derive(Serialize)]
pub(super) struct RuntimeMeQualityRouteDropData {
pub(super) no_conn_total: u64,
@ -167,7 +120,6 @@ pub(super) struct RuntimeMeQualityDcRttData {
#[derive(Serialize)]
pub(super) struct RuntimeMeQualityPayload {
pub(super) counters: RuntimeMeQualityCountersData,
pub(super) teardown: RuntimeMeQualityTeardownData,
pub(super) route_drops: RuntimeMeQualityRouteDropData,
pub(super) dc_rtt: Vec<RuntimeMeQualityDcRttData>,
}
@ -422,7 +374,6 @@ pub(super) async fn build_runtime_me_quality_data(shared: &ApiShared) -> Runtime
reconnect_attempt_total: shared.stats.get_me_reconnect_attempts(),
reconnect_success_total: shared.stats.get_me_reconnect_success(),
},
teardown: build_runtime_me_teardown_data(shared),
route_drops: RuntimeMeQualityRouteDropData {
no_conn_total: shared.stats.get_me_route_drop_no_conn(),
channel_closed_total: shared.stats.get_me_route_drop_channel_closed(),
@ -446,81 +397,6 @@ pub(super) async fn build_runtime_me_quality_data(shared: &ApiShared) -> Runtime
}
}
fn build_runtime_me_teardown_data(shared: &ApiShared) -> RuntimeMeQualityTeardownData {
let attempts = MeWriterTeardownReason::ALL
.iter()
.copied()
.flat_map(|reason| {
MeWriterTeardownMode::ALL
.iter()
.copied()
.map(move |mode| RuntimeMeQualityTeardownAttemptData {
reason: reason.as_str(),
mode: mode.as_str(),
total: shared.stats.get_me_writer_teardown_attempt_total(reason, mode),
})
})
.collect();
let success = MeWriterTeardownMode::ALL
.iter()
.copied()
.map(|mode| RuntimeMeQualityTeardownSuccessData {
mode: mode.as_str(),
total: shared.stats.get_me_writer_teardown_success_total(mode),
})
.collect();
let cleanup_side_effect_failures = MeWriterCleanupSideEffectStep::ALL
.iter()
.copied()
.map(|step| RuntimeMeQualityTeardownSideEffectData {
step: step.as_str(),
total: shared
.stats
.get_me_writer_cleanup_side_effect_failures_total(step),
})
.collect();
let duration = MeWriterTeardownMode::ALL
.iter()
.copied()
.map(|mode| {
let count = shared.stats.get_me_writer_teardown_duration_count(mode);
let mut buckets: Vec<RuntimeMeQualityTeardownDurationBucketData> = Stats::me_writer_teardown_duration_bucket_labels()
.iter()
.enumerate()
.map(|(bucket_idx, label)| RuntimeMeQualityTeardownDurationBucketData {
le_seconds: label,
total: shared
.stats
.get_me_writer_teardown_duration_bucket_total(mode, bucket_idx),
})
.collect();
buckets.push(RuntimeMeQualityTeardownDurationBucketData {
le_seconds: "+Inf",
total: count,
});
RuntimeMeQualityTeardownDurationData {
mode: mode.as_str(),
count,
sum_seconds: shared.stats.get_me_writer_teardown_duration_sum_seconds(mode),
buckets,
}
})
.collect();
RuntimeMeQualityTeardownData {
attempts,
success,
timeout_total: shared.stats.get_me_writer_teardown_timeout_total(),
escalation_total: shared.stats.get_me_writer_teardown_escalation_total(),
noop_total: shared.stats.get_me_writer_teardown_noop_total(),
cleanup_side_effect_failures,
duration,
}
}
pub(super) async fn build_runtime_upstream_quality_data(
shared: &ApiShared,
) -> RuntimeUpstreamQualityData {

View File

@ -1,7 +1,7 @@
use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
use crate::config::ApiConfig;
use crate::stats::{MeWriterTeardownMode, Stats};
use crate::stats::Stats;
use crate::transport::upstream::IpPreference;
use crate::transport::UpstreamRouteKind;
@ -106,29 +106,6 @@ pub(super) fn build_zero_all_data(stats: &Stats, configured_users: usize) -> Zer
refill_failed_total: stats.get_me_refill_failed_total(),
writer_restored_same_endpoint_total: stats.get_me_writer_restored_same_endpoint_total(),
writer_restored_fallback_total: stats.get_me_writer_restored_fallback_total(),
teardown_attempt_total_normal: stats
.get_me_writer_teardown_attempt_total_by_mode(MeWriterTeardownMode::Normal),
teardown_attempt_total_hard_detach: stats
.get_me_writer_teardown_attempt_total_by_mode(MeWriterTeardownMode::HardDetach),
teardown_success_total_normal: stats
.get_me_writer_teardown_success_total(MeWriterTeardownMode::Normal),
teardown_success_total_hard_detach: stats
.get_me_writer_teardown_success_total(MeWriterTeardownMode::HardDetach),
teardown_timeout_total: stats.get_me_writer_teardown_timeout_total(),
teardown_escalation_total: stats.get_me_writer_teardown_escalation_total(),
teardown_noop_total: stats.get_me_writer_teardown_noop_total(),
teardown_cleanup_side_effect_failures_total: stats
.get_me_writer_cleanup_side_effect_failures_total_all(),
teardown_duration_count_total: stats
.get_me_writer_teardown_duration_count(MeWriterTeardownMode::Normal)
.saturating_add(
stats.get_me_writer_teardown_duration_count(MeWriterTeardownMode::HardDetach),
),
teardown_duration_sum_seconds_total: stats
.get_me_writer_teardown_duration_sum_seconds(MeWriterTeardownMode::Normal)
+ stats.get_me_writer_teardown_duration_sum_seconds(
MeWriterTeardownMode::HardDetach,
),
},
desync: ZeroDesyncData {
secure_padding_invalid_total: stats.get_secure_padding_invalid(),

View File

@ -199,14 +199,8 @@ update_every = 43200
hardswap = false
me_pool_drain_ttl_secs = 90
me_instadrain = false
me_pool_drain_threshold = 32
me_pool_drain_soft_evict_grace_secs = 10
me_pool_drain_soft_evict_per_writer = 2
me_pool_drain_soft_evict_budget_per_core = 16
me_pool_drain_soft_evict_cooldown_ms = 1000
me_bind_stale_mode = "never"
me_pool_min_fresh_ratio = 0.8
me_reinit_drain_timeout_secs = 90
me_reinit_drain_timeout_secs = 120
[network]
ipv4 = true

View File

@ -40,10 +40,10 @@ const DEFAULT_ME_ROUTE_HYBRID_MAX_WAIT_MS: u64 = 3000;
const DEFAULT_ME_ROUTE_BLOCKING_SEND_TIMEOUT_MS: u64 = 250;
const DEFAULT_ME_C2ME_SEND_TIMEOUT_MS: u64 = 4000;
const DEFAULT_ME_POOL_DRAIN_SOFT_EVICT_ENABLED: bool = true;
const DEFAULT_ME_POOL_DRAIN_SOFT_EVICT_GRACE_SECS: u64 = 10;
const DEFAULT_ME_POOL_DRAIN_SOFT_EVICT_PER_WRITER: u8 = 2;
const DEFAULT_ME_POOL_DRAIN_SOFT_EVICT_BUDGET_PER_CORE: u16 = 16;
const DEFAULT_ME_POOL_DRAIN_SOFT_EVICT_COOLDOWN_MS: u64 = 1000;
const DEFAULT_ME_POOL_DRAIN_SOFT_EVICT_GRACE_SECS: u64 = 30;
const DEFAULT_ME_POOL_DRAIN_SOFT_EVICT_PER_WRITER: u8 = 1;
const DEFAULT_ME_POOL_DRAIN_SOFT_EVICT_BUDGET_PER_CORE: u16 = 8;
const DEFAULT_ME_POOL_DRAIN_SOFT_EVICT_COOLDOWN_MS: u64 = 5000;
const DEFAULT_USER_MAX_UNIQUE_IPS_WINDOW_SECS: u64 = 30;
const DEFAULT_ACCEPT_PERMIT_TIMEOUT_MS: u64 = 250;
const DEFAULT_UPSTREAM_CONNECT_RETRY_ATTEMPTS: u32 = 2;
@ -606,7 +606,7 @@ pub(crate) fn default_proxy_secret_len_max() -> usize {
}
pub(crate) fn default_me_reinit_drain_timeout_secs() -> u64 {
90
120
}
pub(crate) fn default_me_pool_drain_ttl_secs() -> u64 {
@ -618,7 +618,7 @@ pub(crate) fn default_me_instadrain() -> bool {
}
pub(crate) fn default_me_pool_drain_threshold() -> u64 {
32
128
}
pub(crate) fn default_me_pool_drain_soft_evict_enabled() -> bool {

View File

@ -2037,45 +2037,6 @@ mod tests {
let _ = std::fs::remove_file(path);
}
#[test]
fn force_close_default_matches_drain_ttl() {
let toml = r#"
[censorship]
tls_domain = "example.com"
[access.users]
user = "00000000000000000000000000000000"
"#;
let dir = std::env::temp_dir();
let path = dir.join("telemt_force_close_default_test.toml");
std::fs::write(&path, toml).unwrap();
let cfg = ProxyConfig::load(&path).unwrap();
assert_eq!(cfg.general.me_reinit_drain_timeout_secs, 90);
assert_eq!(cfg.general.effective_me_pool_force_close_secs(), 90);
let _ = std::fs::remove_file(path);
}
#[test]
fn force_close_zero_uses_runtime_safety_fallback() {
let toml = r#"
[general]
me_reinit_drain_timeout_secs = 0
[censorship]
tls_domain = "example.com"
[access.users]
user = "00000000000000000000000000000000"
"#;
let dir = std::env::temp_dir();
let path = dir.join("telemt_force_close_zero_fallback_test.toml");
std::fs::write(&path, toml).unwrap();
let cfg = ProxyConfig::load(&path).unwrap();
assert_eq!(cfg.general.me_reinit_drain_timeout_secs, 0);
assert_eq!(cfg.general.effective_me_pool_force_close_secs(), 300);
let _ = std::fs::remove_file(path);
}
#[test]
fn force_close_bumped_when_below_drain_ttl() {
let toml = r#"

View File

@ -135,8 +135,8 @@ impl MeSocksKdfPolicy {
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize, Default)]
#[serde(rename_all = "lowercase")]
pub enum MeBindStaleMode {
#[default]
Never,
#[default]
Ttl,
Always,
}
@ -855,7 +855,7 @@ pub struct GeneralConfig {
pub me_pool_min_fresh_ratio: f32,
/// Drain timeout in seconds for stale ME writers after endpoint map changes.
/// Set to 0 to use the runtime safety fallback timeout.
/// Set to 0 to keep stale writers draining indefinitely (no force-close).
#[serde(default = "default_me_reinit_drain_timeout_secs")]
pub me_reinit_drain_timeout_secs: u64,
@ -1068,15 +1068,10 @@ impl GeneralConfig {
/// Resolve force-close timeout for stale writers.
/// `me_reinit_drain_timeout_secs` remains backward-compatible alias.
/// A configured `0` uses the runtime safety fallback (300s).
pub fn effective_me_pool_force_close_secs(&self) -> u64 {
if self.me_reinit_drain_timeout_secs == 0 {
300
} else {
self.me_reinit_drain_timeout_secs
}
}
}
/// `[general.links]` — proxy link generation settings.
#[derive(Debug, Clone, Serialize, Deserialize)]

View File

@ -332,76 +332,25 @@ pub(crate) async fn initialize_me_pool(
"Middle-End pool initialized successfully"
);
// ── Supervised background tasks ──────────────────
// Each task runs inside a nested tokio::spawn so
// that a panic is caught via JoinHandle and the
// outer loop restarts the task automatically.
let pool_health = pool_bg.clone();
let rng_health = rng_bg.clone();
let min_conns = pool_size;
tokio::spawn(async move {
loop {
let p = pool_health.clone();
let r = rng_health.clone();
let res = tokio::spawn(async move {
crate::transport::middle_proxy::me_health_monitor(
p, r, min_conns,
pool_health,
rng_health,
min_conns,
)
.await;
})
.await;
match res {
Ok(()) => warn!("me_health_monitor exited unexpectedly, restarting"),
Err(e) => {
error!(error = %e, "me_health_monitor panicked, restarting in 1s");
tokio::time::sleep(Duration::from_secs(1)).await;
}
}
}
});
let pool_drain_enforcer = pool_bg.clone();
tokio::spawn(async move {
loop {
let p = pool_drain_enforcer.clone();
let res = tokio::spawn(async move {
crate::transport::middle_proxy::me_drain_timeout_enforcer(p).await;
})
crate::transport::middle_proxy::me_drain_timeout_enforcer(
pool_drain_enforcer,
)
.await;
match res {
Ok(()) => warn!("me_drain_timeout_enforcer exited unexpectedly, restarting"),
Err(e) => {
error!(error = %e, "me_drain_timeout_enforcer panicked, restarting in 1s");
tokio::time::sleep(Duration::from_secs(1)).await;
}
}
}
});
let pool_watchdog = pool_bg.clone();
tokio::spawn(async move {
loop {
let p = pool_watchdog.clone();
let res = tokio::spawn(async move {
crate::transport::middle_proxy::me_zombie_writer_watchdog(p).await;
})
.await;
match res {
Ok(()) => warn!("me_zombie_writer_watchdog exited unexpectedly, restarting"),
Err(e) => {
error!(error = %e, "me_zombie_writer_watchdog panicked, restarting in 1s");
tokio::time::sleep(Duration::from_secs(1)).await;
}
}
}
});
// CRITICAL: keep the current-thread runtime
// alive. Without this, block_on() returns,
// the Runtime is dropped, and ALL spawned
// background tasks (health monitor, drain
// enforcer, zombie watchdog) are silently
// cancelled — causing the draining-writer
// leak that brought us here.
std::future::pending::<()>().await;
unreachable!();
break;
}
Err(e) => {
startup_tracker_bg.set_me_last_error(Some(e.to_string())).await;
@ -459,63 +408,21 @@ pub(crate) async fn initialize_me_pool(
"Middle-End pool initialized successfully"
);
// ── Supervised background tasks ──────────────────
let pool_clone = pool.clone();
let rng_clone = rng.clone();
let min_conns = pool_size;
tokio::spawn(async move {
loop {
let p = pool_clone.clone();
let r = rng_clone.clone();
let res = tokio::spawn(async move {
crate::transport::middle_proxy::me_health_monitor(
p, r, min_conns,
pool_clone, rng_clone, min_conns,
)
.await;
})
.await;
match res {
Ok(()) => warn!("me_health_monitor exited unexpectedly, restarting"),
Err(e) => {
error!(error = %e, "me_health_monitor panicked, restarting in 1s");
tokio::time::sleep(Duration::from_secs(1)).await;
}
}
}
});
let pool_drain_enforcer = pool.clone();
tokio::spawn(async move {
loop {
let p = pool_drain_enforcer.clone();
let res = tokio::spawn(async move {
crate::transport::middle_proxy::me_drain_timeout_enforcer(p).await;
})
crate::transport::middle_proxy::me_drain_timeout_enforcer(
pool_drain_enforcer,
)
.await;
match res {
Ok(()) => warn!("me_drain_timeout_enforcer exited unexpectedly, restarting"),
Err(e) => {
error!(error = %e, "me_drain_timeout_enforcer panicked, restarting in 1s");
tokio::time::sleep(Duration::from_secs(1)).await;
}
}
}
});
let pool_watchdog = pool.clone();
tokio::spawn(async move {
loop {
let p = pool_watchdog.clone();
let res = tokio::spawn(async move {
crate::transport::middle_proxy::me_zombie_writer_watchdog(p).await;
})
.await;
match res {
Ok(()) => warn!("me_zombie_writer_watchdog exited unexpectedly, restarting"),
Err(e) => {
error!(error = %e, "me_zombie_writer_watchdog panicked, restarting in 1s");
tokio::time::sleep(Duration::from_secs(1)).await;
}
}
}
});
break Some(pool);

View File

@ -16,9 +16,7 @@ use tracing::{info, warn, debug};
use crate::config::ProxyConfig;
use crate::ip_tracker::UserIpTracker;
use crate::stats::beobachten::BeobachtenStore;
use crate::stats::{
MeWriterCleanupSideEffectStep, MeWriterTeardownMode, MeWriterTeardownReason, Stats,
};
use crate::stats::Stats;
use crate::transport::{ListenOptions, create_listener};
pub async fn serve(
@ -1772,169 +1770,6 @@ async fn render_metrics(stats: &Stats, config: &ProxyConfig, ip_tracker: &UserIp
}
);
let _ = writeln!(
out,
"# HELP telemt_me_writer_teardown_attempt_total ME writer teardown attempts by reason and mode"
);
let _ = writeln!(out, "# TYPE telemt_me_writer_teardown_attempt_total counter");
for reason in MeWriterTeardownReason::ALL {
for mode in MeWriterTeardownMode::ALL {
let _ = writeln!(
out,
"telemt_me_writer_teardown_attempt_total{{reason=\"{}\",mode=\"{}\"}} {}",
reason.as_str(),
mode.as_str(),
if me_allows_normal {
stats.get_me_writer_teardown_attempt_total(reason, mode)
} else {
0
}
);
}
}
let _ = writeln!(
out,
"# HELP telemt_me_writer_teardown_success_total ME writer teardown successes by mode"
);
let _ = writeln!(out, "# TYPE telemt_me_writer_teardown_success_total counter");
for mode in MeWriterTeardownMode::ALL {
let _ = writeln!(
out,
"telemt_me_writer_teardown_success_total{{mode=\"{}\"}} {}",
mode.as_str(),
if me_allows_normal {
stats.get_me_writer_teardown_success_total(mode)
} else {
0
}
);
}
let _ = writeln!(
out,
"# HELP telemt_me_writer_teardown_timeout_total Teardown operations that timed out"
);
let _ = writeln!(out, "# TYPE telemt_me_writer_teardown_timeout_total counter");
let _ = writeln!(
out,
"telemt_me_writer_teardown_timeout_total {}",
if me_allows_normal {
stats.get_me_writer_teardown_timeout_total()
} else {
0
}
);
let _ = writeln!(
out,
"# HELP telemt_me_writer_teardown_escalation_total Watchdog teardown escalations to hard detach"
);
let _ = writeln!(
out,
"# TYPE telemt_me_writer_teardown_escalation_total counter"
);
let _ = writeln!(
out,
"telemt_me_writer_teardown_escalation_total {}",
if me_allows_normal {
stats.get_me_writer_teardown_escalation_total()
} else {
0
}
);
let _ = writeln!(
out,
"# HELP telemt_me_writer_teardown_noop_total Teardown operations that became no-op"
);
let _ = writeln!(out, "# TYPE telemt_me_writer_teardown_noop_total counter");
let _ = writeln!(
out,
"telemt_me_writer_teardown_noop_total {}",
if me_allows_normal {
stats.get_me_writer_teardown_noop_total()
} else {
0
}
);
let _ = writeln!(
out,
"# HELP telemt_me_writer_teardown_duration_seconds ME writer teardown latency histogram by mode"
);
let _ = writeln!(
out,
"# TYPE telemt_me_writer_teardown_duration_seconds histogram"
);
let bucket_labels = Stats::me_writer_teardown_duration_bucket_labels();
for mode in MeWriterTeardownMode::ALL {
for (bucket_idx, label) in bucket_labels.iter().enumerate() {
let _ = writeln!(
out,
"telemt_me_writer_teardown_duration_seconds_bucket{{mode=\"{}\",le=\"{}\"}} {}",
mode.as_str(),
label,
if me_allows_normal {
stats.get_me_writer_teardown_duration_bucket_total(mode, bucket_idx)
} else {
0
}
);
}
let _ = writeln!(
out,
"telemt_me_writer_teardown_duration_seconds_bucket{{mode=\"{}\",le=\"+Inf\"}} {}",
mode.as_str(),
if me_allows_normal {
stats.get_me_writer_teardown_duration_count(mode)
} else {
0
}
);
let _ = writeln!(
out,
"telemt_me_writer_teardown_duration_seconds_sum{{mode=\"{}\"}} {:.6}",
mode.as_str(),
if me_allows_normal {
stats.get_me_writer_teardown_duration_sum_seconds(mode)
} else {
0.0
}
);
let _ = writeln!(
out,
"telemt_me_writer_teardown_duration_seconds_count{{mode=\"{}\"}} {}",
mode.as_str(),
if me_allows_normal {
stats.get_me_writer_teardown_duration_count(mode)
} else {
0
}
);
}
let _ = writeln!(
out,
"# HELP telemt_me_writer_cleanup_side_effect_failures_total Failed cleanup side effects by step"
);
let _ = writeln!(
out,
"# TYPE telemt_me_writer_cleanup_side_effect_failures_total counter"
);
for step in MeWriterCleanupSideEffectStep::ALL {
let _ = writeln!(
out,
"telemt_me_writer_cleanup_side_effect_failures_total{{step=\"{}\"}} {}",
step.as_str(),
if me_allows_normal {
stats.get_me_writer_cleanup_side_effect_failures_total(step)
} else {
0
}
);
}
let _ = writeln!(out, "# HELP telemt_me_refill_triggered_total Immediate ME refill runs started");
let _ = writeln!(out, "# TYPE telemt_me_refill_triggered_total counter");
let _ = writeln!(
@ -2340,17 +2175,6 @@ mod tests {
assert!(output.contains("# TYPE telemt_me_rpc_proxy_req_signal_sent_total counter"));
assert!(output.contains("# TYPE telemt_me_idle_close_by_peer_total counter"));
assert!(output.contains("# TYPE telemt_me_writer_removed_total counter"));
assert!(output.contains("# TYPE telemt_me_writer_teardown_attempt_total counter"));
assert!(output.contains("# TYPE telemt_me_writer_teardown_success_total counter"));
assert!(output.contains("# TYPE telemt_me_writer_teardown_timeout_total counter"));
assert!(output.contains("# TYPE telemt_me_writer_teardown_escalation_total counter"));
assert!(output.contains("# TYPE telemt_me_writer_teardown_noop_total counter"));
assert!(output.contains(
"# TYPE telemt_me_writer_teardown_duration_seconds histogram"
));
assert!(output.contains(
"# TYPE telemt_me_writer_cleanup_side_effect_failures_total counter"
));
assert!(output.contains("# TYPE telemt_me_writer_close_signal_drop_total counter"));
assert!(output.contains(
"# TYPE telemt_me_writer_close_signal_channel_full_total counter"

View File

@ -19,137 +19,6 @@ use tracing::debug;
use crate::config::{MeTelemetryLevel, MeWriterPickMode};
use self::telemetry::TelemetryPolicy;
const ME_WRITER_TEARDOWN_MODE_COUNT: usize = 2;
const ME_WRITER_TEARDOWN_REASON_COUNT: usize = 11;
const ME_WRITER_CLEANUP_SIDE_EFFECT_STEP_COUNT: usize = 2;
const ME_WRITER_TEARDOWN_DURATION_BUCKET_COUNT: usize = 12;
const ME_WRITER_TEARDOWN_DURATION_BUCKET_BOUNDS_MICROS: [u64; ME_WRITER_TEARDOWN_DURATION_BUCKET_COUNT] = [
1_000,
5_000,
10_000,
25_000,
50_000,
100_000,
250_000,
500_000,
1_000_000,
2_500_000,
5_000_000,
10_000_000,
];
const ME_WRITER_TEARDOWN_DURATION_BUCKET_LABELS: [&str; ME_WRITER_TEARDOWN_DURATION_BUCKET_COUNT] = [
"0.001",
"0.005",
"0.01",
"0.025",
"0.05",
"0.1",
"0.25",
"0.5",
"1",
"2.5",
"5",
"10",
];
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
#[repr(u8)]
pub enum MeWriterTeardownMode {
Normal = 0,
HardDetach = 1,
}
impl MeWriterTeardownMode {
pub const ALL: [Self; ME_WRITER_TEARDOWN_MODE_COUNT] =
[Self::Normal, Self::HardDetach];
pub const fn as_str(self) -> &'static str {
match self {
Self::Normal => "normal",
Self::HardDetach => "hard_detach",
}
}
const fn idx(self) -> usize {
self as usize
}
}
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
#[repr(u8)]
pub enum MeWriterTeardownReason {
ReaderExit = 0,
WriterTaskExit = 1,
PingSendFail = 2,
SignalSendFail = 3,
RouteChannelClosed = 4,
CloseRpcChannelClosed = 5,
PruneClosedWriter = 6,
ReapTimeoutExpired = 7,
ReapThresholdForce = 8,
ReapEmpty = 9,
WatchdogStuckDraining = 10,
}
impl MeWriterTeardownReason {
pub const ALL: [Self; ME_WRITER_TEARDOWN_REASON_COUNT] = [
Self::ReaderExit,
Self::WriterTaskExit,
Self::PingSendFail,
Self::SignalSendFail,
Self::RouteChannelClosed,
Self::CloseRpcChannelClosed,
Self::PruneClosedWriter,
Self::ReapTimeoutExpired,
Self::ReapThresholdForce,
Self::ReapEmpty,
Self::WatchdogStuckDraining,
];
pub const fn as_str(self) -> &'static str {
match self {
Self::ReaderExit => "reader_exit",
Self::WriterTaskExit => "writer_task_exit",
Self::PingSendFail => "ping_send_fail",
Self::SignalSendFail => "signal_send_fail",
Self::RouteChannelClosed => "route_channel_closed",
Self::CloseRpcChannelClosed => "close_rpc_channel_closed",
Self::PruneClosedWriter => "prune_closed_writer",
Self::ReapTimeoutExpired => "reap_timeout_expired",
Self::ReapThresholdForce => "reap_threshold_force",
Self::ReapEmpty => "reap_empty",
Self::WatchdogStuckDraining => "watchdog_stuck_draining",
}
}
const fn idx(self) -> usize {
self as usize
}
}
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
#[repr(u8)]
pub enum MeWriterCleanupSideEffectStep {
CloseSignalChannelFull = 0,
CloseSignalChannelClosed = 1,
}
impl MeWriterCleanupSideEffectStep {
pub const ALL: [Self; ME_WRITER_CLEANUP_SIDE_EFFECT_STEP_COUNT] =
[Self::CloseSignalChannelFull, Self::CloseSignalChannelClosed];
pub const fn as_str(self) -> &'static str {
match self {
Self::CloseSignalChannelFull => "close_signal_channel_full",
Self::CloseSignalChannelClosed => "close_signal_channel_closed",
}
}
const fn idx(self) -> usize {
self as usize
}
}
// ============= Stats =============
#[derive(Default)]
@ -259,18 +128,6 @@ pub struct Stats {
me_draining_writers_reap_progress_total: AtomicU64,
me_writer_removed_total: AtomicU64,
me_writer_removed_unexpected_total: AtomicU64,
me_writer_teardown_attempt_total:
[[AtomicU64; ME_WRITER_TEARDOWN_MODE_COUNT]; ME_WRITER_TEARDOWN_REASON_COUNT],
me_writer_teardown_success_total: [AtomicU64; ME_WRITER_TEARDOWN_MODE_COUNT],
me_writer_teardown_timeout_total: AtomicU64,
me_writer_teardown_escalation_total: AtomicU64,
me_writer_teardown_noop_total: AtomicU64,
me_writer_cleanup_side_effect_failures_total:
[AtomicU64; ME_WRITER_CLEANUP_SIDE_EFFECT_STEP_COUNT],
me_writer_teardown_duration_bucket_hits:
[[AtomicU64; ME_WRITER_TEARDOWN_DURATION_BUCKET_COUNT + 1]; ME_WRITER_TEARDOWN_MODE_COUNT],
me_writer_teardown_duration_sum_micros: [AtomicU64; ME_WRITER_TEARDOWN_MODE_COUNT],
me_writer_teardown_duration_count: [AtomicU64; ME_WRITER_TEARDOWN_MODE_COUNT],
me_refill_triggered_total: AtomicU64,
me_refill_skipped_inflight_total: AtomicU64,
me_refill_failed_total: AtomicU64,
@ -908,74 +765,6 @@ impl Stats {
self.me_writer_removed_unexpected_total.fetch_add(1, Ordering::Relaxed);
}
}
pub fn increment_me_writer_teardown_attempt_total(
&self,
reason: MeWriterTeardownReason,
mode: MeWriterTeardownMode,
) {
if self.telemetry_me_allows_normal() {
self.me_writer_teardown_attempt_total[reason.idx()][mode.idx()]
.fetch_add(1, Ordering::Relaxed);
}
}
pub fn increment_me_writer_teardown_success_total(&self, mode: MeWriterTeardownMode) {
if self.telemetry_me_allows_normal() {
self.me_writer_teardown_success_total[mode.idx()].fetch_add(1, Ordering::Relaxed);
}
}
pub fn increment_me_writer_teardown_timeout_total(&self) {
if self.telemetry_me_allows_normal() {
self.me_writer_teardown_timeout_total
.fetch_add(1, Ordering::Relaxed);
}
}
pub fn increment_me_writer_teardown_escalation_total(&self) {
if self.telemetry_me_allows_normal() {
self.me_writer_teardown_escalation_total
.fetch_add(1, Ordering::Relaxed);
}
}
pub fn increment_me_writer_teardown_noop_total(&self) {
if self.telemetry_me_allows_normal() {
self.me_writer_teardown_noop_total
.fetch_add(1, Ordering::Relaxed);
}
}
pub fn increment_me_writer_cleanup_side_effect_failures_total(
&self,
step: MeWriterCleanupSideEffectStep,
) {
if self.telemetry_me_allows_normal() {
self.me_writer_cleanup_side_effect_failures_total[step.idx()]
.fetch_add(1, Ordering::Relaxed);
}
}
pub fn observe_me_writer_teardown_duration(
&self,
mode: MeWriterTeardownMode,
duration: Duration,
) {
if !self.telemetry_me_allows_normal() {
return;
}
let duration_micros = duration.as_micros().min(u64::MAX as u128) as u64;
let mut bucket_idx = ME_WRITER_TEARDOWN_DURATION_BUCKET_COUNT;
for (idx, upper_bound_micros) in ME_WRITER_TEARDOWN_DURATION_BUCKET_BOUNDS_MICROS
.iter()
.copied()
.enumerate()
{
if duration_micros <= upper_bound_micros {
bucket_idx = idx;
break;
}
}
self.me_writer_teardown_duration_bucket_hits[mode.idx()][bucket_idx]
.fetch_add(1, Ordering::Relaxed);
self.me_writer_teardown_duration_sum_micros[mode.idx()]
.fetch_add(duration_micros, Ordering::Relaxed);
self.me_writer_teardown_duration_count[mode.idx()].fetch_add(1, Ordering::Relaxed);
}
pub fn increment_me_refill_triggered_total(&self) {
if self.telemetry_me_allows_debug() {
self.me_refill_triggered_total.fetch_add(1, Ordering::Relaxed);
@ -1508,79 +1297,6 @@ impl Stats {
pub fn get_me_writer_removed_unexpected_total(&self) -> u64 {
self.me_writer_removed_unexpected_total.load(Ordering::Relaxed)
}
pub fn get_me_writer_teardown_attempt_total(
&self,
reason: MeWriterTeardownReason,
mode: MeWriterTeardownMode,
) -> u64 {
self.me_writer_teardown_attempt_total[reason.idx()][mode.idx()]
.load(Ordering::Relaxed)
}
pub fn get_me_writer_teardown_attempt_total_by_mode(&self, mode: MeWriterTeardownMode) -> u64 {
MeWriterTeardownReason::ALL
.iter()
.copied()
.map(|reason| self.get_me_writer_teardown_attempt_total(reason, mode))
.sum()
}
pub fn get_me_writer_teardown_success_total(&self, mode: MeWriterTeardownMode) -> u64 {
self.me_writer_teardown_success_total[mode.idx()].load(Ordering::Relaxed)
}
pub fn get_me_writer_teardown_timeout_total(&self) -> u64 {
self.me_writer_teardown_timeout_total.load(Ordering::Relaxed)
}
pub fn get_me_writer_teardown_escalation_total(&self) -> u64 {
self.me_writer_teardown_escalation_total
.load(Ordering::Relaxed)
}
pub fn get_me_writer_teardown_noop_total(&self) -> u64 {
self.me_writer_teardown_noop_total.load(Ordering::Relaxed)
}
pub fn get_me_writer_cleanup_side_effect_failures_total(
&self,
step: MeWriterCleanupSideEffectStep,
) -> u64 {
self.me_writer_cleanup_side_effect_failures_total[step.idx()]
.load(Ordering::Relaxed)
}
pub fn get_me_writer_cleanup_side_effect_failures_total_all(&self) -> u64 {
MeWriterCleanupSideEffectStep::ALL
.iter()
.copied()
.map(|step| self.get_me_writer_cleanup_side_effect_failures_total(step))
.sum()
}
pub fn me_writer_teardown_duration_bucket_labels(
) -> &'static [&'static str; ME_WRITER_TEARDOWN_DURATION_BUCKET_COUNT] {
&ME_WRITER_TEARDOWN_DURATION_BUCKET_LABELS
}
pub fn get_me_writer_teardown_duration_bucket_hits(
&self,
mode: MeWriterTeardownMode,
bucket_idx: usize,
) -> u64 {
self.me_writer_teardown_duration_bucket_hits[mode.idx()][bucket_idx]
.load(Ordering::Relaxed)
}
pub fn get_me_writer_teardown_duration_bucket_total(
&self,
mode: MeWriterTeardownMode,
bucket_idx: usize,
) -> u64 {
let capped_idx = bucket_idx.min(ME_WRITER_TEARDOWN_DURATION_BUCKET_COUNT);
let mut total = 0u64;
for idx in 0..=capped_idx {
total = total.saturating_add(self.get_me_writer_teardown_duration_bucket_hits(mode, idx));
}
total
}
pub fn get_me_writer_teardown_duration_count(&self, mode: MeWriterTeardownMode) -> u64 {
self.me_writer_teardown_duration_count[mode.idx()].load(Ordering::Relaxed)
}
pub fn get_me_writer_teardown_duration_sum_seconds(&self, mode: MeWriterTeardownMode) -> f64 {
self.me_writer_teardown_duration_sum_micros[mode.idx()].load(Ordering::Relaxed) as f64
/ 1_000_000.0
}
pub fn get_me_refill_triggered_total(&self) -> u64 {
self.me_refill_triggered_total.load(Ordering::Relaxed)
}
@ -2085,79 +1801,6 @@ mod tests {
assert_eq!(stats.get_me_route_drop_queue_full(), 0);
}
#[test]
fn test_teardown_counters_and_duration() {
let stats = Stats::new();
stats.increment_me_writer_teardown_attempt_total(
MeWriterTeardownReason::ReaderExit,
MeWriterTeardownMode::Normal,
);
stats.increment_me_writer_teardown_success_total(MeWriterTeardownMode::Normal);
stats.observe_me_writer_teardown_duration(
MeWriterTeardownMode::Normal,
Duration::from_millis(3),
);
stats.increment_me_writer_cleanup_side_effect_failures_total(
MeWriterCleanupSideEffectStep::CloseSignalChannelFull,
);
assert_eq!(
stats.get_me_writer_teardown_attempt_total(
MeWriterTeardownReason::ReaderExit,
MeWriterTeardownMode::Normal
),
1
);
assert_eq!(
stats.get_me_writer_teardown_success_total(MeWriterTeardownMode::Normal),
1
);
assert_eq!(
stats.get_me_writer_teardown_duration_count(MeWriterTeardownMode::Normal),
1
);
assert!(
stats.get_me_writer_teardown_duration_sum_seconds(MeWriterTeardownMode::Normal) > 0.0
);
assert_eq!(
stats.get_me_writer_cleanup_side_effect_failures_total(
MeWriterCleanupSideEffectStep::CloseSignalChannelFull
),
1
);
}
#[test]
fn test_teardown_counters_respect_me_silent() {
let stats = Stats::new();
stats.apply_telemetry_policy(TelemetryPolicy {
core_enabled: true,
user_enabled: true,
me_level: MeTelemetryLevel::Silent,
});
stats.increment_me_writer_teardown_attempt_total(
MeWriterTeardownReason::ReaderExit,
MeWriterTeardownMode::Normal,
);
stats.increment_me_writer_teardown_timeout_total();
stats.observe_me_writer_teardown_duration(
MeWriterTeardownMode::Normal,
Duration::from_millis(1),
);
assert_eq!(
stats.get_me_writer_teardown_attempt_total(
MeWriterTeardownReason::ReaderExit,
MeWriterTeardownMode::Normal
),
0
);
assert_eq!(stats.get_me_writer_teardown_timeout_total(), 0);
assert_eq!(
stats.get_me_writer_teardown_duration_count(MeWriterTeardownMode::Normal),
0
);
}
#[test]
fn test_replay_checker_basic() {
let checker = ReplayChecker::new(100, Duration::from_secs(60));

View File

@ -10,7 +10,6 @@ use tracing::{debug, info, warn};
use crate::config::MeFloorMode;
use crate::crypto::SecureRandom;
use crate::network::IpFamily;
use crate::stats::MeWriterTeardownReason;
use super::MePool;
use super::pool::MeWriter;
@ -359,8 +358,7 @@ pub(super) async fn reap_draining_writers(
continue;
}
pool.stats.increment_pool_force_close_total();
pool.remove_writer_and_close_clients(writer_id, MeWriterTeardownReason::ReapTimeoutExpired)
.await;
pool.remove_writer_and_close_clients(writer_id).await;
pool.stats
.increment_me_draining_writers_reap_progress_total();
}
@ -378,8 +376,7 @@ pub(super) async fn reap_draining_writers(
continue;
}
pool.stats.increment_pool_force_close_total();
pool.remove_writer_and_close_clients(writer_id, MeWriterTeardownReason::ReapThresholdForce)
.await;
pool.remove_writer_and_close_clients(writer_id).await;
pool.stats
.increment_me_draining_writers_reap_progress_total();
closed_total = closed_total.saturating_add(1);
@ -391,8 +388,7 @@ pub(super) async fn reap_draining_writers(
if !closed_writer_ids.insert(writer_id) {
continue;
}
pool.remove_writer_and_close_clients(writer_id, MeWriterTeardownReason::ReapEmpty)
.await;
pool.remove_writer_and_close_clients(writer_id).await;
pool.stats
.increment_me_draining_writers_reap_progress_total();
closed_total = closed_total.saturating_add(1);
@ -1554,187 +1550,6 @@ async fn maybe_rotate_single_endpoint_shadow(
);
}
/// Last-resort safety net for draining writers stuck past their deadline.
///
/// Runs every `TICK_SECS` and force-closes any draining writer whose
/// `drain_deadline_epoch_secs` has been exceeded by more than a threshold.
///
/// Two thresholds:
/// - `SOFT_THRESHOLD_SECS` (60s): writers with no bound clients
/// - `HARD_THRESHOLD_SECS` (300s): writers WITH bound clients (unconditional)
///
/// Intentionally kept trivial and independent of pool config to minimise
/// the probability of panicking itself. Uses `SystemTime` directly
/// as a fallback clock source and timeouts on every lock acquisition
/// and writer removal so one stuck writer cannot block the rest.
pub async fn me_zombie_writer_watchdog(pool: Arc<MePool>) {
use std::time::{SystemTime, UNIX_EPOCH};
const TICK_SECS: u64 = 30;
const SOFT_THRESHOLD_SECS: u64 = 60;
const HARD_THRESHOLD_SECS: u64 = 300;
const LOCK_TIMEOUT_SECS: u64 = 5;
const REMOVE_TIMEOUT_SECS: u64 = 10;
const HARD_DETACH_TIMEOUT_STREAK: u8 = 3;
let mut removal_timeout_streak = HashMap::<u64, u8>::new();
loop {
tokio::time::sleep(Duration::from_secs(TICK_SECS)).await;
let now = match SystemTime::now().duration_since(UNIX_EPOCH) {
Ok(d) => d.as_secs(),
Err(_) => continue,
};
// Phase 1: collect zombie IDs under a short read-lock with timeout.
let zombie_ids_with_meta: Vec<(u64, bool)> = {
let Ok(ws) = tokio::time::timeout(
Duration::from_secs(LOCK_TIMEOUT_SECS),
pool.writers.read(),
)
.await
else {
warn!("zombie_watchdog: writers read-lock timeout, skipping tick");
continue;
};
ws.iter()
.filter(|w| w.draining.load(std::sync::atomic::Ordering::Relaxed))
.filter_map(|w| {
let deadline = w
.drain_deadline_epoch_secs
.load(std::sync::atomic::Ordering::Relaxed);
if deadline == 0 {
return None;
}
let overdue = now.saturating_sub(deadline);
if overdue == 0 {
return None;
}
let started = w
.draining_started_at_epoch_secs
.load(std::sync::atomic::Ordering::Relaxed);
let drain_age = now.saturating_sub(started);
if drain_age > HARD_THRESHOLD_SECS {
return Some((w.id, true));
}
if overdue > SOFT_THRESHOLD_SECS {
return Some((w.id, false));
}
None
})
.collect()
};
// read lock released here
if zombie_ids_with_meta.is_empty() {
removal_timeout_streak.clear();
continue;
}
let mut active_zombie_ids = HashSet::<u64>::with_capacity(zombie_ids_with_meta.len());
for (writer_id, _) in &zombie_ids_with_meta {
active_zombie_ids.insert(*writer_id);
}
removal_timeout_streak.retain(|writer_id, _| active_zombie_ids.contains(writer_id));
warn!(
zombie_count = zombie_ids_with_meta.len(),
soft_threshold_secs = SOFT_THRESHOLD_SECS,
hard_threshold_secs = HARD_THRESHOLD_SECS,
"Zombie draining writers detected by watchdog, force-closing"
);
// Phase 2: remove each writer individually with a timeout.
// One stuck removal cannot block the rest.
for (writer_id, had_clients) in &zombie_ids_with_meta {
let result = tokio::time::timeout(
Duration::from_secs(REMOVE_TIMEOUT_SECS),
pool.remove_writer_and_close_clients(
*writer_id,
MeWriterTeardownReason::WatchdogStuckDraining,
),
)
.await;
match result {
Ok(true) => {
removal_timeout_streak.remove(writer_id);
pool.stats.increment_pool_force_close_total();
pool.stats
.increment_me_draining_writers_reap_progress_total();
info!(
writer_id,
had_clients,
"Zombie writer removed by watchdog"
);
}
Ok(false) => {
removal_timeout_streak.remove(writer_id);
debug!(
writer_id,
had_clients,
"Zombie writer watchdog removal became no-op"
);
}
Err(_) => {
pool.stats.increment_me_writer_teardown_timeout_total();
let streak = removal_timeout_streak
.entry(*writer_id)
.and_modify(|value| *value = value.saturating_add(1))
.or_insert(1);
warn!(
writer_id,
had_clients,
timeout_streak = *streak,
"Zombie writer removal timed out"
);
if *streak < HARD_DETACH_TIMEOUT_STREAK {
continue;
}
pool.stats.increment_me_writer_teardown_escalation_total();
let hard_detach = tokio::time::timeout(
Duration::from_secs(REMOVE_TIMEOUT_SECS),
pool.remove_draining_writer_hard_detach(
*writer_id,
MeWriterTeardownReason::WatchdogStuckDraining,
),
)
.await;
match hard_detach {
Ok(true) => {
removal_timeout_streak.remove(writer_id);
pool.stats.increment_pool_force_close_total();
pool.stats
.increment_me_draining_writers_reap_progress_total();
info!(
writer_id,
had_clients,
"Zombie writer hard-detached after repeated timeouts"
);
}
Ok(false) => {
removal_timeout_streak.remove(writer_id);
debug!(
writer_id,
had_clients,
"Zombie hard-detach skipped (writer already gone or no longer draining)"
);
}
Err(_) => {
pool.stats.increment_me_writer_teardown_timeout_total();
warn!(
writer_id,
had_clients,
"Zombie hard-detach timed out, will retry next tick"
);
}
}
}
}
}
}
}
#[cfg(test)]
mod tests {
use std::collections::HashMap;

View File

@ -316,12 +316,7 @@ async fn reap_draining_writers_maintains_warn_state_subset_property_under_bulk_c
let ids = sorted_writer_ids(&pool).await;
for writer_id in ids.into_iter().take(3) {
let _ = pool
.remove_writer_and_close_clients(
writer_id,
crate::stats::MeWriterTeardownReason::ReapEmpty,
)
.await;
let _ = pool.remove_writer_and_close_clients(writer_id).await;
}
reap_draining_writers(&pool, &mut warn_next_allowed, &mut soft_evict_next_allowed).await;

View File

@ -12,9 +12,7 @@ use super::codec::WriterCommand;
use super::health::{health_drain_close_budget, reap_draining_writers};
use super::pool::{MePool, MeWriter, WriterContour};
use super::registry::ConnMeta;
use crate::config::{
GeneralConfig, MeBindStaleMode, MeRouteNoWriterMode, MeSocksKdfPolicy, MeWriterPickMode,
};
use crate::config::{GeneralConfig, MeRouteNoWriterMode, MeSocksKdfPolicy, MeWriterPickMode};
use crate::crypto::SecureRandom;
use crate::network::probe::NetworkDecision;
use crate::stats::Stats;
@ -197,9 +195,7 @@ async fn reap_draining_writers_drops_warn_state_for_removed_writer() {
reap_draining_writers(&pool, &mut warn_next_allowed, &mut soft_evict_next_allowed).await;
assert!(warn_next_allowed.contains_key(&7));
let _ = pool
.remove_writer_and_close_clients(7, crate::stats::MeWriterTeardownReason::ReapEmpty)
.await;
let _ = pool.remove_writer_and_close_clients(7).await;
assert!(pool.registry.get_writer(conn_ids[0]).await.is_none());
reap_draining_writers(&pool, &mut warn_next_allowed, &mut soft_evict_next_allowed).await;
@ -529,12 +525,7 @@ async fn reap_draining_writers_warn_state_never_exceeds_live_draining_population
let existing_writer_ids = current_writer_ids(&pool).await;
for writer_id in existing_writer_ids.into_iter().take(4) {
let _ = pool
.remove_writer_and_close_clients(
writer_id,
crate::stats::MeWriterTeardownReason::ReapEmpty,
)
.await;
let _ = pool.remove_writer_and_close_clients(writer_id).await;
}
reap_draining_writers(&pool, &mut warn_next_allowed, &mut soft_evict_next_allowed).await;
assert!(warn_next_allowed.len() <= pool.writers.read().await.len());
@ -655,23 +646,10 @@ async fn reap_draining_writers_instadrain_removes_non_expired_writers_immediatel
#[test]
fn general_config_default_drain_threshold_remains_enabled() {
assert_eq!(GeneralConfig::default().me_pool_drain_threshold, 32);
assert_eq!(GeneralConfig::default().me_pool_drain_threshold, 128);
assert!(GeneralConfig::default().me_pool_drain_soft_evict_enabled);
assert_eq!(
GeneralConfig::default().me_pool_drain_soft_evict_grace_secs,
10
);
assert_eq!(
GeneralConfig::default().me_pool_drain_soft_evict_per_writer,
2
1
);
assert_eq!(
GeneralConfig::default().me_pool_drain_soft_evict_budget_per_core,
16
);
assert_eq!(
GeneralConfig::default().me_pool_drain_soft_evict_cooldown_ms,
1000
);
assert_eq!(GeneralConfig::default().me_bind_stale_mode, MeBindStaleMode::Never);
}

View File

@ -30,7 +30,7 @@ mod health_adversarial_tests;
use bytes::Bytes;
pub use health::{me_drain_timeout_enforcer, me_health_monitor, me_zombie_writer_watchdog};
pub use health::{me_drain_timeout_enforcer, me_health_monitor};
#[allow(unused_imports)]
pub use ping::{run_me_ping, format_sample_line, format_me_route, MePingReport, MePingSample, MePingFamily};
pub use pool::MePool;

View File

@ -18,8 +18,6 @@ use crate::transport::UpstreamManager;
use super::ConnRegistry;
use super::codec::WriterCommand;
const ME_FORCE_CLOSE_SAFETY_FALLBACK_SECS: u64 = 300;
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub(super) struct RefillDcKey {
pub dc: i32,
@ -231,14 +229,6 @@ impl MePool {
.as_secs()
}
fn normalize_force_close_secs(force_close_secs: u64) -> u64 {
if force_close_secs == 0 {
ME_FORCE_CLOSE_SAFETY_FALLBACK_SECS
} else {
force_close_secs
}
}
pub fn new(
proxy_tag: Option<Vec<u8>>,
proxy_secret: Vec<u8>,
@ -487,9 +477,7 @@ impl MePool {
me_pool_drain_soft_evict_cooldown_ms: AtomicU64::new(
me_pool_drain_soft_evict_cooldown_ms.max(1),
),
me_pool_force_close_secs: AtomicU64::new(Self::normalize_force_close_secs(
me_pool_force_close_secs,
)),
me_pool_force_close_secs: AtomicU64::new(me_pool_force_close_secs),
me_pool_min_fresh_ratio_permille: AtomicU32::new(Self::ratio_to_permille(
me_pool_min_fresh_ratio,
)),
@ -599,10 +587,8 @@ impl MePool {
);
self.me_pool_drain_soft_evict_cooldown_ms
.store(pool_drain_soft_evict_cooldown_ms.max(1), Ordering::Relaxed);
self.me_pool_force_close_secs.store(
Self::normalize_force_close_secs(force_close_secs),
Ordering::Relaxed,
);
self.me_pool_force_close_secs
.store(force_close_secs, Ordering::Relaxed);
self.me_pool_min_fresh_ratio_permille
.store(Self::ratio_to_permille(min_fresh_ratio), Ordering::Relaxed);
self.me_hardswap_warmup_delay_min_ms
@ -747,10 +733,13 @@ impl MePool {
}
pub(super) fn force_close_timeout(&self) -> Option<Duration> {
let secs =
Self::normalize_force_close_secs(self.me_pool_force_close_secs.load(Ordering::Relaxed));
let secs = self.me_pool_force_close_secs.load(Ordering::Relaxed);
if secs == 0 {
None
} else {
Some(Duration::from_secs(secs))
}
}
pub(super) fn drain_soft_evict_enabled(&self) -> bool {
self.me_pool_drain_soft_evict_enabled

View File

@ -74,8 +74,9 @@ impl MePool {
debug!(
%addr,
wait_ms = expiry.saturating_duration_since(now).as_millis(),
"All ME endpoints are quarantined for the DC group; waiting for quarantine expiry"
"All ME endpoints are quarantined for the DC group; retrying earliest one"
);
return vec![addr];
}
Vec::new()

View File

@ -16,13 +16,11 @@ use crate::config::MeBindStaleMode;
use crate::crypto::SecureRandom;
use crate::error::{ProxyError, Result};
use crate::protocol::constants::{RPC_CLOSE_EXT_U32, RPC_PING_U32};
use crate::stats::{
MeWriterCleanupSideEffectStep, MeWriterTeardownMode, MeWriterTeardownReason,
};
use super::codec::{RpcWriter, WriterCommand};
use super::pool::{MePool, MeWriter, WriterContour};
use super::reader::reader_loop;
use super::registry::BoundConn;
use super::wire::build_proxy_req_payload;
const ME_ACTIVE_PING_SECS: u64 = 25;
@ -30,12 +28,6 @@ const ME_ACTIVE_PING_JITTER_SECS: i64 = 5;
const ME_IDLE_KEEPALIVE_MAX_SECS: u64 = 5;
const ME_RPC_PROXY_REQ_RESPONSE_WAIT_MS: u64 = 700;
#[derive(Clone, Copy)]
enum WriterRemoveGuardMode {
Any,
DrainingOnly,
}
fn is_me_peer_closed_error(error: &ProxyError) -> bool {
matches!(error, ProxyError::Io(ioe) if ioe.kind() == ErrorKind::UnexpectedEof)
}
@ -52,16 +44,9 @@ impl MePool {
for writer_id in closed_writer_ids {
if self.registry.is_writer_empty(writer_id).await {
let _ = self
.remove_writer_only(writer_id, MeWriterTeardownReason::PruneClosedWriter)
.await;
let _ = self.remove_writer_only(writer_id).await;
} else {
let _ = self
.remove_writer_and_close_clients(
writer_id,
MeWriterTeardownReason::PruneClosedWriter,
)
.await;
let _ = self.remove_writer_and_close_clients(writer_id).await;
}
}
}
@ -158,9 +143,6 @@ impl MePool {
crc_mode: hs.crc_mode,
};
let cancel_wr = cancel.clone();
let cleanup_done = Arc::new(AtomicBool::new(false));
let cleanup_for_writer = cleanup_done.clone();
let pool_writer_task = Arc::downgrade(self);
tokio::spawn(async move {
loop {
tokio::select! {
@ -178,20 +160,6 @@ impl MePool {
_ = cancel_wr.cancelled() => break,
}
}
if cleanup_for_writer
.compare_exchange(false, true, Ordering::AcqRel, Ordering::Relaxed)
.is_ok()
{
if let Some(pool) = pool_writer_task.upgrade() {
pool.remove_writer_and_close_clients(
writer_id,
MeWriterTeardownReason::WriterTaskExit,
)
.await;
} else {
cancel_wr.cancel();
}
}
});
let writer = MeWriter {
id: writer_id,
@ -228,6 +196,7 @@ impl MePool {
let cancel_ping = cancel.clone();
let tx_ping = tx.clone();
let ping_tracker_ping = ping_tracker.clone();
let cleanup_done = Arc::new(AtomicBool::new(false));
let cleanup_for_reader = cleanup_done.clone();
let cleanup_for_ping = cleanup_done.clone();
let keepalive_enabled = self.me_keepalive_enabled;
@ -273,29 +242,21 @@ impl MePool {
stats_reader_close.increment_me_idle_close_by_peer_total();
info!(writer_id, "ME socket closed by peer on idle writer");
}
if cleanup_for_reader
if let Some(pool) = pool.upgrade()
&& cleanup_for_reader
.compare_exchange(false, true, Ordering::AcqRel, Ordering::Relaxed)
.is_ok()
{
if let Some(pool) = pool.upgrade() {
pool.remove_writer_and_close_clients(
writer_id,
MeWriterTeardownReason::ReaderExit,
)
.await;
} else {
// Fallback for shutdown races: make writer task exit quickly so stale
// channels are observable by periodic prune.
cancel_reader_token.cancel();
}
pool.remove_writer_and_close_clients(writer_id).await;
}
if let Err(e) = res {
if !idle_close_by_peer {
warn!(error = %e, "ME reader ended");
}
}
let remaining = writers_arc.read().await.len();
debug!(writer_id, remaining, "ME reader task finished");
let mut ws = writers_arc.write().await;
ws.retain(|w| w.id != writer_id);
info!(remaining = ws.len(), "Dead ME writer removed from pool");
});
let pool_ping = Arc::downgrade(self);
@ -390,11 +351,7 @@ impl MePool {
.compare_exchange(false, true, Ordering::AcqRel, Ordering::Relaxed)
.is_ok()
{
pool.remove_writer_and_close_clients(
writer_id,
MeWriterTeardownReason::PingSendFail,
)
.await;
pool.remove_writer_and_close_clients(writer_id).await;
}
break;
}
@ -487,11 +444,7 @@ impl MePool {
.compare_exchange(false, true, Ordering::AcqRel, Ordering::Relaxed)
.is_ok()
{
pool.remove_writer_and_close_clients(
writer_id,
MeWriterTeardownReason::SignalSendFail,
)
.await;
pool.remove_writer_and_close_clients(writer_id).await;
}
break;
}
@ -525,11 +478,7 @@ impl MePool {
.compare_exchange(false, true, Ordering::AcqRel, Ordering::Relaxed)
.is_ok()
{
pool.remove_writer_and_close_clients(
writer_id,
MeWriterTeardownReason::SignalSendFail,
)
.await;
pool.remove_writer_and_close_clients(writer_id).await;
}
break;
}
@ -542,83 +491,21 @@ impl MePool {
Ok(())
}
pub(crate) async fn remove_writer_and_close_clients(
self: &Arc<Self>,
writer_id: u64,
reason: MeWriterTeardownReason,
) -> bool {
pub(crate) async fn remove_writer_and_close_clients(self: &Arc<Self>, writer_id: u64) {
// Full client cleanup now happens inside `registry.writer_lost` to keep
// writer reap/remove paths strictly non-blocking per connection.
self.remove_writer_with_mode(
writer_id,
reason,
MeWriterTeardownMode::Normal,
WriterRemoveGuardMode::Any,
)
.await
let _ = self.remove_writer_only(writer_id).await;
}
pub(super) async fn remove_draining_writer_hard_detach(
self: &Arc<Self>,
writer_id: u64,
reason: MeWriterTeardownReason,
) -> bool {
self.remove_writer_with_mode(
writer_id,
reason,
MeWriterTeardownMode::HardDetach,
WriterRemoveGuardMode::DrainingOnly,
)
.await
}
async fn remove_writer_only(
self: &Arc<Self>,
writer_id: u64,
reason: MeWriterTeardownReason,
) -> bool {
self.remove_writer_with_mode(
writer_id,
reason,
MeWriterTeardownMode::Normal,
WriterRemoveGuardMode::Any,
)
.await
}
// Authoritative teardown primitive shared by normal cleanup and watchdog path.
// Lock-order invariant:
// 1) mutate `writers` under pool write lock,
// 2) release pool lock,
// 3) run registry/metrics/refill side effects.
// `registry.writer_lost` must never run while `writers` lock is held.
async fn remove_writer_with_mode(
self: &Arc<Self>,
writer_id: u64,
reason: MeWriterTeardownReason,
mode: MeWriterTeardownMode,
guard_mode: WriterRemoveGuardMode,
) -> bool {
let started_at = Instant::now();
self.stats
.increment_me_writer_teardown_attempt_total(reason, mode);
async fn remove_writer_only(self: &Arc<Self>, writer_id: u64) -> Vec<BoundConn> {
let mut close_tx: Option<mpsc::Sender<WriterCommand>> = None;
let mut removed_addr: Option<SocketAddr> = None;
let mut removed_dc: Option<i32> = None;
let mut removed_uptime: Option<Duration> = None;
let mut trigger_refill = false;
let mut removed = false;
{
let mut ws = self.writers.write().await;
if let Some(pos) = ws.iter().position(|w| w.id == writer_id) {
if matches!(guard_mode, WriterRemoveGuardMode::DrainingOnly)
&& !ws[pos].draining.load(Ordering::Relaxed)
{
self.stats.increment_me_writer_teardown_noop_total();
self.stats
.observe_me_writer_teardown_duration(mode, started_at.elapsed());
return false;
}
let w = ws.remove(pos);
let was_draining = w.draining.load(Ordering::Relaxed);
if was_draining {
@ -635,7 +522,6 @@ impl MePool {
}
close_tx = Some(w.tx.clone());
self.conn_count.fetch_sub(1, Ordering::Relaxed);
removed = true;
}
}
// State invariant:
@ -643,7 +529,7 @@ impl MePool {
// - writer is removed from registry routing/binding maps via `writer_lost`.
// The close command below is only a best-effort accelerator for task shutdown.
// Cleanup progress must never depend on command-channel availability.
let _ = self.registry.writer_lost(writer_id).await;
let conns = self.registry.writer_lost(writer_id).await;
{
let mut tracker = self.ping_tracker.lock().await;
tracker.retain(|_, (_, wid)| *wid != writer_id);
@ -656,9 +542,6 @@ impl MePool {
self.stats.increment_me_writer_close_signal_drop_total();
self.stats
.increment_me_writer_close_signal_channel_full_total();
self.stats.increment_me_writer_cleanup_side_effect_failures_total(
MeWriterCleanupSideEffectStep::CloseSignalChannelFull,
);
debug!(
writer_id,
"Skipping close signal for removed writer: command channel is full"
@ -666,9 +549,6 @@ impl MePool {
}
Err(TrySendError::Closed(_)) => {
self.stats.increment_me_writer_close_signal_drop_total();
self.stats.increment_me_writer_cleanup_side_effect_failures_total(
MeWriterCleanupSideEffectStep::CloseSignalChannelClosed,
);
debug!(
writer_id,
"Skipping close signal for removed writer: command channel is closed"
@ -676,24 +556,16 @@ impl MePool {
}
}
}
if let Some(addr) = removed_addr {
if trigger_refill
&& let Some(addr) = removed_addr
&& let Some(writer_dc) = removed_dc
{
if let Some(uptime) = removed_uptime {
self.maybe_quarantine_flapping_endpoint(addr, uptime).await;
}
if trigger_refill
&& let Some(writer_dc) = removed_dc
{
self.trigger_immediate_refill_for_dc(addr, writer_dc);
}
}
if removed {
self.stats.increment_me_writer_teardown_success_total(mode);
} else {
self.stats.increment_me_writer_teardown_noop_total();
}
self.stats
.observe_me_writer_teardown_duration(mode, started_at.elapsed());
removed
conns
}
pub(crate) async fn mark_writer_draining_with_timeout(

View File

@ -14,7 +14,6 @@ use crate::config::{MeRouteNoWriterMode, MeWriterPickMode};
use crate::error::{ProxyError, Result};
use crate::network::IpFamily;
use crate::protocol::constants::{RPC_CLOSE_CONN_U32, RPC_CLOSE_EXT_U32};
use crate::stats::MeWriterTeardownReason;
use super::MePool;
use super::codec::WriterCommand;
@ -135,11 +134,7 @@ impl MePool {
Ok(()) => return Ok(()),
Err(TimedSendError::Closed(_)) => {
warn!(writer_id = current.writer_id, "ME writer channel closed");
self.remove_writer_and_close_clients(
current.writer_id,
MeWriterTeardownReason::RouteChannelClosed,
)
.await;
self.remove_writer_and_close_clients(current.writer_id).await;
continue;
}
Err(TimedSendError::Timeout(_)) => {
@ -156,11 +151,7 @@ impl MePool {
}
Err(TrySendError::Closed(_)) => {
warn!(writer_id = current.writer_id, "ME writer channel closed");
self.remove_writer_and_close_clients(
current.writer_id,
MeWriterTeardownReason::RouteChannelClosed,
)
.await;
self.remove_writer_and_close_clients(current.writer_id).await;
continue;
}
}
@ -467,11 +458,7 @@ impl MePool {
Err(TrySendError::Closed(_)) => {
self.stats.increment_me_writer_pick_closed_total(pick_mode);
warn!(writer_id = w.id, "ME writer channel closed");
self.remove_writer_and_close_clients(
w.id,
MeWriterTeardownReason::RouteChannelClosed,
)
.await;
self.remove_writer_and_close_clients(w.id).await;
continue;
}
}
@ -516,11 +503,7 @@ impl MePool {
Err(TimedSendError::Closed(_)) => {
self.stats.increment_me_writer_pick_closed_total(pick_mode);
warn!(writer_id = w.id, "ME writer channel closed (blocking)");
self.remove_writer_and_close_clients(
w.id,
MeWriterTeardownReason::RouteChannelClosed,
)
.await;
self.remove_writer_and_close_clients(w.id).await;
}
Err(TimedSendError::Timeout(_)) => {
self.stats.increment_me_writer_pick_full_total(pick_mode);
@ -671,11 +654,7 @@ impl MePool {
}
Err(TrySendError::Closed(_)) => {
debug!("ME close write failed");
self.remove_writer_and_close_clients(
w.writer_id,
MeWriterTeardownReason::CloseRpcChannelClosed,
)
.await;
self.remove_writer_and_close_clients(w.writer_id).await;
}
}
} else {