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Add NATS option for notifications and searches.
This commit is contained in:
Syfaro
parent
c38d53cfea
commit
876a6bee55
1
.gitignore
vendored
1
.gitignore
vendored
@ -1 +1,2 @@
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/target
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.env
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456
Cargo.lock
generated
456
Cargo.lock
generated
@ -222,6 +222,40 @@ dependencies = [
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"alloc-no-stdlib",
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]
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
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||||
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||||
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@ -242,6 +276,17 @@ dependencies = [
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||||
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||||
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@ -515,13 +657,22 @@ dependencies = [
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@ -555,6 +706,27 @@ dependencies = [
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@ -570,26 +742,6 @@ dependencies = [
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@ -1146,6 +1313,16 @@ dependencies = [
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|
||||
@ -1521,9 +1755,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
|
||||
dependencies = [
|
||||
"ppv-lite86",
|
||||
"rand_core",
|
||||
"rand_core 0.6.4",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rand_core"
|
||||
version = "0.5.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
|
||||
|
||||
[[package]]
|
||||
name = "rand_core"
|
||||
version = "0.6.4"
|
||||
@ -1661,6 +1901,27 @@ dependencies = [
|
||||
"webpki",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rustls-native-certs"
|
||||
version = "0.6.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0167bac7a9f490495f3c33013e7722b53cb087ecbe082fb0c6387c96f634ea50"
|
||||
dependencies = [
|
||||
"openssl-probe",
|
||||
"rustls-pemfile 1.0.1",
|
||||
"schannel",
|
||||
"security-framework",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rustls-pemfile"
|
||||
version = "0.3.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1ee86d63972a7c661d1536fefe8c3c8407321c3df668891286de28abcd087360"
|
||||
dependencies = [
|
||||
"base64",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rustls-pemfile"
|
||||
version = "1.0.1"
|
||||
@ -1762,6 +2023,26 @@ dependencies = [
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_nanos"
|
||||
version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e44969a61f5d316be20a42ff97816efb3b407a924d06824c3d8a49fa8450de0e"
|
||||
dependencies = [
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_repr"
|
||||
version = "0.1.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1fe39d9fbb0ebf5eb2c7cb7e2a47e4f462fad1379f1166b8ae49ad9eae89a7ca"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_urlencoded"
|
||||
version = "0.7.1"
|
||||
@ -1782,7 +2063,20 @@ checksum = "f04293dc80c3993519f2d7f6f511707ee7094fe0c6d3406feb330cdb3540eba3"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"cpufeatures",
|
||||
"digest",
|
||||
"digest 0.10.5",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "sha2"
|
||||
version = "0.9.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
|
||||
dependencies = [
|
||||
"block-buffer 0.9.0",
|
||||
"cfg-if",
|
||||
"cpufeatures",
|
||||
"digest 0.9.0",
|
||||
"opaque-debug",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
@ -1793,7 +2087,7 @@ checksum = "82e6b795fe2e3b1e845bafcb27aa35405c4d47cdfc92af5fc8d3002f76cebdc0"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"cpufeatures",
|
||||
"digest",
|
||||
"digest 0.10.5",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
@ -1814,6 +2108,24 @@ dependencies = [
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "signatory"
|
||||
version = "0.23.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5dfecc059e81632eef1dd9b79e22fc28b8fe69b30d3357512a77a0ad8ee3c782"
|
||||
dependencies = [
|
||||
"pkcs8",
|
||||
"rand_core 0.6.4",
|
||||
"signature",
|
||||
"zeroize",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "signature"
|
||||
version = "1.6.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "74233d3b3b2f6d4b006dc19dee745e73e2a6bfb6f93607cd3b02bd5b00797d7c"
|
||||
|
||||
[[package]]
|
||||
name = "slab"
|
||||
version = "0.4.7"
|
||||
@ -1845,6 +2157,15 @@ version = "0.5.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
|
||||
|
||||
[[package]]
|
||||
name = "spki"
|
||||
version = "0.4.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5c01a0c15da1b0b0e1494112e7af814a678fec9bd157881b49beac661e9b6f32"
|
||||
dependencies = [
|
||||
"der",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "sqlformat"
|
||||
version = "0.2.0"
|
||||
@ -1903,11 +2224,11 @@ dependencies = [
|
||||
"percent-encoding",
|
||||
"rand",
|
||||
"rustls",
|
||||
"rustls-pemfile",
|
||||
"rustls-pemfile 1.0.1",
|
||||
"serde",
|
||||
"serde_json",
|
||||
"sha1",
|
||||
"sha2",
|
||||
"sha2 0.10.6",
|
||||
"smallvec",
|
||||
"sqlformat",
|
||||
"sqlx-rt",
|
||||
@ -1931,7 +2252,7 @@ dependencies = [
|
||||
"once_cell",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"sha2",
|
||||
"sha2 0.10.6",
|
||||
"sqlx-core",
|
||||
"sqlx-rt",
|
||||
"syn",
|
||||
@ -1959,6 +2280,21 @@ dependencies = [
|
||||
"unicode-normalization",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "strsim"
|
||||
version = "0.10.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
|
||||
|
||||
[[package]]
|
||||
name = "subslice"
|
||||
version = "0.2.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e0a8e4809a3bb02de01f1f7faf1ba01a83af9e8eabcd4d31dd6e413d14d56aae"
|
||||
dependencies = [
|
||||
"memchr",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "subtle"
|
||||
version = "2.4.1"
|
||||
@ -1976,6 +2312,18 @@ dependencies = [
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "synstructure"
|
||||
version = "0.12.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f36bdaa60a83aca3921b5259d5400cbf5e90fc51931376a9bd4a0eb79aa7210f"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"unicode-xid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tempfile"
|
||||
version = "3.3.0"
|
||||
@ -1990,6 +2338,15 @@ dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "termcolor"
|
||||
version = "1.1.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
|
||||
dependencies = [
|
||||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "thiserror"
|
||||
version = "1.0.37"
|
||||
@ -2050,6 +2407,7 @@ dependencies = [
|
||||
"itoa",
|
||||
"libc",
|
||||
"num_threads",
|
||||
"serde",
|
||||
"time-macros",
|
||||
]
|
||||
|
||||
@ -2316,6 +2674,12 @@ version = "1.10.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0fdbf052a0783de01e944a6ce7a8cb939e295b1e7be835a1112c3b9a7f047a5a"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-xid"
|
||||
version = "0.2.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c"
|
||||
|
||||
[[package]]
|
||||
name = "unicode_categories"
|
||||
version = "0.1.1"
|
||||
@ -2504,6 +2868,15 @@ version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-util"
|
||||
version = "0.1.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
|
||||
dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
@ -2562,6 +2935,27 @@ dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zeroize"
|
||||
version = "1.5.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c394b5bd0c6f669e7275d9c20aa90ae064cb22e75a1cad54e1b34088034b149f"
|
||||
dependencies = [
|
||||
"zeroize_derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zeroize_derive"
|
||||
version = "1.3.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3f8f187641dad4f680d25c4bfc4225b418165984179f26ca76ec4fb6441d3a17"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"synstructure",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zstd"
|
||||
version = "0.11.2+zstd.1.5.2"
|
||||
|
||||
@ -5,7 +5,8 @@ authors = ["Syfaro <syfaro@huefox.com>"]
|
||||
edition = "2018"
|
||||
|
||||
[dependencies]
|
||||
envconfig = "0.10"
|
||||
dotenvy = "0.15"
|
||||
clap = { version = "4", features = ["derive", "env"] }
|
||||
thiserror = "1"
|
||||
|
||||
tracing = "0.1"
|
||||
@ -33,6 +34,8 @@ actix-http = "3"
|
||||
actix-service = "2"
|
||||
tracing-actix-web = { version = "0.6", features = ["opentelemetry_0_17"] }
|
||||
|
||||
async-nats = "0.21"
|
||||
|
||||
[dependencies.sqlx]
|
||||
version = "0.6"
|
||||
features = ["runtime-actix-rustls", "postgres"]
|
||||
|
||||
@ -6,7 +6,8 @@ use actix_web::{
|
||||
web::{self, Data},
|
||||
App, HttpResponse, HttpServer, Responder,
|
||||
};
|
||||
use envconfig::Envconfig;
|
||||
use clap::Parser;
|
||||
use futures::StreamExt;
|
||||
use opentelemetry::KeyValue;
|
||||
use prometheus::{Encoder, TextEncoder};
|
||||
use sqlx::postgres::PgPoolOptions;
|
||||
@ -21,7 +22,6 @@ lazy_static::lazy_static! {
|
||||
static ref HTTP_REQUEST_DURATION: prometheus::HistogramVec = prometheus::register_histogram_vec!("http_request_duration_seconds", "Duration of HTTP requests", &["http_route", "http_method", "http_status_code"]).unwrap();
|
||||
|
||||
static ref TREE_DURATION: prometheus::HistogramVec = prometheus::register_histogram_vec!("bkapi_tree_duration_seconds", "Duration of tree search time", &["distance"]).unwrap();
|
||||
static ref TREE_ADD_DURATION: prometheus::Histogram = prometheus::register_histogram!("bkapi_tree_add_duration_seconds", "Duration to add new item to tree").unwrap();
|
||||
}
|
||||
|
||||
#[derive(thiserror::Error, Debug)]
|
||||
@ -32,32 +32,56 @@ enum Error {
|
||||
Listener(sqlx::Error),
|
||||
#[error("listener got data that could not be decoded: {0}")]
|
||||
Data(serde_json::Error),
|
||||
#[error("nats encountered error: {0}")]
|
||||
Nats(#[from] async_nats::Error),
|
||||
#[error("io error: {0}")]
|
||||
Io(#[from] std::io::Error),
|
||||
}
|
||||
|
||||
#[derive(Envconfig, Clone)]
|
||||
#[derive(Parser, Clone)]
|
||||
struct Config {
|
||||
#[envconfig(default = "0.0.0.0:3000")]
|
||||
/// Host to listen for incoming HTTP requests.
|
||||
#[clap(long, env, default_value = "127.0.0.1:3000")]
|
||||
http_listen: String,
|
||||
#[envconfig(default = "127.0.0.1:6831")]
|
||||
|
||||
/// Jaeger agent endpoint for span collection.
|
||||
#[clap(long, env, default_value = "127.0.0.1:6831")]
|
||||
jaeger_agent: String,
|
||||
#[envconfig(default = "bkapi")]
|
||||
/// Service name for spans.
|
||||
#[clap(long, env, default_value = "bkapi")]
|
||||
service_name: String,
|
||||
|
||||
/// Database URL for fetching data.
|
||||
#[clap(long, env)]
|
||||
database_url: String,
|
||||
/// Query to perform to fetch initial values.
|
||||
#[clap(long, env)]
|
||||
database_query: String,
|
||||
database_subscribe: String,
|
||||
#[envconfig(default = "false")]
|
||||
database_is_unique: bool,
|
||||
|
||||
max_distance: Option<u32>,
|
||||
/// If provided, the Postgres notification topic to subscribe to.
|
||||
#[clap(long, env)]
|
||||
database_subscribe: Option<String>,
|
||||
|
||||
/// The NATS host.
|
||||
#[clap(long, env)]
|
||||
nats_host: Option<String>,
|
||||
/// The NATS NKEY.
|
||||
#[clap(long, env)]
|
||||
nats_nkey: Option<String>,
|
||||
|
||||
/// Maximum distance permitted in queries.
|
||||
#[clap(long, env, default_value = "10")]
|
||||
max_distance: u32,
|
||||
}
|
||||
|
||||
#[actix_web::main]
|
||||
async fn main() {
|
||||
let config = Config::init_from_env().expect("could not load config");
|
||||
let _ = dotenvy::dotenv();
|
||||
|
||||
let config = Config::parse();
|
||||
configure_tracing(&config);
|
||||
|
||||
tracing::info!("starting bkbase");
|
||||
tracing::info!("starting bkapi");
|
||||
|
||||
let tree: tree::Tree = Arc::new(RwLock::new(bk_tree::BKTree::new(tree::Hamming)));
|
||||
|
||||
@ -69,18 +93,46 @@ async fn main() {
|
||||
.expect_or_log("could not connect to database");
|
||||
tracing::debug!("connected to postgres");
|
||||
|
||||
let http_listen = config.http_listen.clone();
|
||||
|
||||
let (sender, receiver) = futures::channel::oneshot::channel();
|
||||
|
||||
tracing::info!("starting to listen for payloads");
|
||||
let client = match (config.nats_host.as_deref(), config.nats_nkey.as_deref()) {
|
||||
(Some(host), None) => Some(
|
||||
async_nats::connect(host)
|
||||
.await
|
||||
.expect_or_log("could not connect to nats with no nkey"),
|
||||
),
|
||||
(Some(host), Some(nkey)) => Some(
|
||||
async_nats::ConnectOptions::with_nkey(nkey.to_string())
|
||||
.connect(host)
|
||||
.await
|
||||
.expect_or_log("could not connect to nats with nkey"),
|
||||
),
|
||||
_ => None,
|
||||
};
|
||||
|
||||
let tree_clone = tree.clone();
|
||||
let config_clone = config.clone();
|
||||
tokio::task::spawn(async {
|
||||
tree::listen_for_payloads(pool, config_clone, tree_clone, sender)
|
||||
.await
|
||||
.expect_or_log("listenting for updates failed");
|
||||
});
|
||||
if let Some(client) = client.clone() {
|
||||
tracing::info!("starting to listen for payloads from nats");
|
||||
|
||||
tokio::task::spawn(async {
|
||||
tree::listen_for_payloads_nats(config_clone, pool, client, tree_clone, sender)
|
||||
.await
|
||||
.unwrap_or_log();
|
||||
});
|
||||
} else if let Some(subscription) = config.database_subscribe.clone() {
|
||||
tracing::info!("starting to listen for payloads from postgres");
|
||||
|
||||
let query = config.database_query.clone();
|
||||
|
||||
tokio::task::spawn(async move {
|
||||
tree::listen_for_payloads_db(pool, subscription, query, tree_clone, sender)
|
||||
.await
|
||||
.unwrap_or_log();
|
||||
});
|
||||
} else {
|
||||
panic!("no listener source available");
|
||||
};
|
||||
|
||||
tracing::info!("waiting for initial tree to load");
|
||||
receiver
|
||||
@ -88,45 +140,17 @@ async fn main() {
|
||||
.expect_or_log("tree loading was dropped before completing");
|
||||
tracing::info!("initial tree loaded, starting server");
|
||||
|
||||
let tree = Data::new(tree);
|
||||
let config = Data::new(config);
|
||||
if let Some(client) = client {
|
||||
let tree_clone = tree.clone();
|
||||
let config_clone = config.clone();
|
||||
tokio::task::spawn(async move {
|
||||
search_nats(client, tree_clone, config_clone)
|
||||
.await
|
||||
.unwrap_or_log();
|
||||
});
|
||||
}
|
||||
|
||||
HttpServer::new(move || {
|
||||
App::new()
|
||||
.wrap(tracing_actix_web::TracingLogger::default())
|
||||
.wrap_fn(|req, srv| {
|
||||
let path = req.path().to_owned();
|
||||
let method = req.method().to_string();
|
||||
|
||||
let start = std::time::Instant::now();
|
||||
let fut = srv.call(req);
|
||||
|
||||
async move {
|
||||
let res = fut.await?;
|
||||
let end = std::time::Instant::now().duration_since(start);
|
||||
|
||||
let status_code = res.status().as_u16().to_string();
|
||||
|
||||
let labels: Vec<&str> = vec![&path, &method, &status_code];
|
||||
HTTP_REQUEST_COUNT.with_label_values(&labels).inc();
|
||||
HTTP_REQUEST_DURATION
|
||||
.with_label_values(&labels)
|
||||
.observe(end.as_secs_f64());
|
||||
|
||||
Ok(res)
|
||||
}
|
||||
})
|
||||
.app_data(tree.clone())
|
||||
.app_data(config.clone())
|
||||
.service(search)
|
||||
.service(health)
|
||||
.service(metrics)
|
||||
})
|
||||
.bind(&http_listen)
|
||||
.expect_or_log("bind failed")
|
||||
.run()
|
||||
.await
|
||||
.expect_or_log("server failed");
|
||||
start_server(config, tree).await.unwrap_or_log();
|
||||
}
|
||||
|
||||
fn configure_tracing(config: &Config) {
|
||||
@ -163,6 +187,64 @@ fn configure_tracing(config: &Config) {
|
||||
.expect("tracing could not be configured");
|
||||
}
|
||||
|
||||
async fn start_server(config: Config, tree: tree::Tree) -> Result<(), Error> {
|
||||
let tree = Data::new(tree);
|
||||
let config_data = Data::new(config.clone());
|
||||
|
||||
HttpServer::new(move || {
|
||||
App::new()
|
||||
.wrap(tracing_actix_web::TracingLogger::default())
|
||||
.wrap_fn(|req, srv| {
|
||||
let path = req.path().to_owned();
|
||||
let method = req.method().to_string();
|
||||
|
||||
let start = std::time::Instant::now();
|
||||
let fut = srv.call(req);
|
||||
|
||||
async move {
|
||||
let res = fut.await?;
|
||||
let end = std::time::Instant::now().duration_since(start);
|
||||
|
||||
let status_code = res.status().as_u16().to_string();
|
||||
|
||||
let labels: Vec<&str> = vec![&path, &method, &status_code];
|
||||
HTTP_REQUEST_COUNT.with_label_values(&labels).inc();
|
||||
HTTP_REQUEST_DURATION
|
||||
.with_label_values(&labels)
|
||||
.observe(end.as_secs_f64());
|
||||
|
||||
Ok(res)
|
||||
}
|
||||
})
|
||||
.app_data(tree.clone())
|
||||
.app_data(config_data.clone())
|
||||
.service(search)
|
||||
.service(health)
|
||||
.service(metrics)
|
||||
})
|
||||
.bind(&config.http_listen)
|
||||
.expect_or_log("bind failed")
|
||||
.run()
|
||||
.await
|
||||
.map_err(Error::Io)
|
||||
}
|
||||
|
||||
#[get("/health")]
|
||||
async fn health() -> impl Responder {
|
||||
"OK"
|
||||
}
|
||||
|
||||
#[get("/metrics")]
|
||||
async fn metrics() -> Result<HttpResponse, std::convert::Infallible> {
|
||||
let mut buffer = Vec::new();
|
||||
let encoder = TextEncoder::new();
|
||||
|
||||
let metric_families = prometheus::gather();
|
||||
encoder.encode(&metric_families, &mut buffer).unwrap();
|
||||
|
||||
Ok(HttpResponse::Ok().body(buffer))
|
||||
}
|
||||
|
||||
#[derive(Debug, serde::Deserialize)]
|
||||
struct Query {
|
||||
hash: i64,
|
||||
@ -189,22 +271,91 @@ async fn search(
|
||||
query: web::Query<Query>,
|
||||
tree: Data<tree::Tree>,
|
||||
config: Data<Config>,
|
||||
) -> Result<HttpResponse, std::convert::Infallible> {
|
||||
) -> HttpResponse {
|
||||
let Query { hash, distance } = query.0;
|
||||
let max_distance = config.max_distance;
|
||||
|
||||
tracing::info!("searching for hash {} with distance {}", hash, distance);
|
||||
|
||||
if matches!(max_distance, Some(max_distance) if distance > max_distance) {
|
||||
return Ok(HttpResponse::BadRequest().body("distance is greater than max distance"));
|
||||
}
|
||||
let distance = distance.clamp(0, config.max_distance);
|
||||
|
||||
let tree = tree.read().await;
|
||||
let hashes = search_tree(&tree, hash, distance);
|
||||
drop(tree);
|
||||
|
||||
let resp = SearchResponse {
|
||||
hash,
|
||||
distance,
|
||||
hashes,
|
||||
};
|
||||
|
||||
HttpResponse::Ok().json(resp)
|
||||
}
|
||||
|
||||
#[derive(serde::Deserialize)]
|
||||
struct SearchPayload {
|
||||
hash: i64,
|
||||
distance: u32,
|
||||
}
|
||||
|
||||
async fn search_nats(
|
||||
client: async_nats::Client,
|
||||
tree: tree::Tree,
|
||||
config: Config,
|
||||
) -> Result<(), Error> {
|
||||
tracing::info!("subscribing to searches");
|
||||
|
||||
let mut sub = client
|
||||
.queue_subscribe("bkapi.search".to_string(), "bkapi-search".to_string())
|
||||
.await?;
|
||||
|
||||
while let Some(message) = sub.next().await {
|
||||
tracing::trace!("got search message");
|
||||
|
||||
let reply = match message.reply {
|
||||
Some(reply) => reply,
|
||||
None => {
|
||||
tracing::warn!("message had no reply subject");
|
||||
continue;
|
||||
}
|
||||
};
|
||||
|
||||
let payloads: Vec<SearchPayload> =
|
||||
serde_json::from_slice(&message.payload).map_err(Error::Data)?;
|
||||
|
||||
let tree = tree.clone();
|
||||
let config = config.clone();
|
||||
let client = client.clone();
|
||||
|
||||
tokio::task::spawn(async move {
|
||||
let tree = tree.read().await;
|
||||
|
||||
let results: Vec<_> = payloads
|
||||
.into_iter()
|
||||
.map(|payload| (payload.hash, payload.distance.clamp(0, config.max_distance)))
|
||||
.map(|(hash, distance)| search_tree(&tree, hash, distance))
|
||||
.collect();
|
||||
|
||||
drop(tree);
|
||||
|
||||
client
|
||||
.publish(reply, serde_json::to_vec(&results).unwrap_or_log().into())
|
||||
.await
|
||||
.unwrap_or_log();
|
||||
});
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[tracing::instrument(skip(tree))]
|
||||
fn search_tree(
|
||||
tree: &bk_tree::BKTree<tree::Node, tree::Hamming>,
|
||||
hash: i64,
|
||||
distance: u32,
|
||||
) -> Vec<HashDistance> {
|
||||
tracing::debug!("searching tree");
|
||||
|
||||
let duration = TREE_DURATION
|
||||
.with_label_values(&[&distance.to_string()])
|
||||
.start_timer();
|
||||
let matches: Vec<HashDistance> = tree
|
||||
let results: Vec<_> = tree
|
||||
.find(&hash.into(), distance)
|
||||
.into_iter()
|
||||
.map(|item| HashDistance {
|
||||
@ -214,29 +365,6 @@ async fn search(
|
||||
.collect();
|
||||
let time = duration.stop_and_record();
|
||||
|
||||
tracing::debug!("found {} items in {} seconds", matches.len(), time);
|
||||
|
||||
let resp = SearchResponse {
|
||||
hash,
|
||||
distance,
|
||||
hashes: matches,
|
||||
};
|
||||
|
||||
Ok(HttpResponse::Ok().json(resp))
|
||||
}
|
||||
|
||||
#[get("/health")]
|
||||
async fn health() -> impl Responder {
|
||||
"OK"
|
||||
}
|
||||
|
||||
#[get("/metrics")]
|
||||
async fn metrics() -> Result<HttpResponse, std::convert::Infallible> {
|
||||
let mut buffer = Vec::new();
|
||||
let encoder = TextEncoder::new();
|
||||
|
||||
let metric_families = prometheus::gather();
|
||||
encoder.encode(&metric_families, &mut buffer).unwrap();
|
||||
|
||||
Ok(HttpResponse::Ok().body(buffer))
|
||||
tracing::info!(time, results = results.len(), "found results");
|
||||
results
|
||||
}
|
||||
|
||||
@ -1,11 +1,16 @@
|
||||
use std::sync::Arc;
|
||||
|
||||
use futures::TryStreamExt;
|
||||
use sqlx::{postgres::PgListener, Pool, Postgres, Row};
|
||||
use tokio::sync::RwLock;
|
||||
use tracing_unwrap::ResultExt;
|
||||
|
||||
use crate::{Config, Error};
|
||||
|
||||
lazy_static::lazy_static! {
|
||||
static ref TREE_ADD_DURATION: prometheus::Histogram = prometheus::register_histogram!("bkapi_tree_add_duration_seconds", "Duration to add new item to tree").unwrap();
|
||||
}
|
||||
|
||||
pub(crate) type Tree = Arc<RwLock<bk_tree::BKTree<Node, Hamming>>>;
|
||||
|
||||
/// A hamming distance metric.
|
||||
@ -44,13 +49,11 @@ impl From<Node> for i64 {
|
||||
/// be lost.
|
||||
async fn create_tree(
|
||||
conn: &Pool<Postgres>,
|
||||
config: &Config,
|
||||
query: &str,
|
||||
) -> Result<bk_tree::BKTree<Node, Hamming>, Error> {
|
||||
use futures::TryStreamExt;
|
||||
|
||||
tracing::warn!("creating new tree");
|
||||
let mut tree = bk_tree::BKTree::new(Hamming);
|
||||
let mut rows = sqlx::query(&config.database_query).fetch(conn);
|
||||
let mut rows = sqlx::query(query).fetch(conn);
|
||||
|
||||
let mut count = 0;
|
||||
|
||||
@ -59,13 +62,9 @@ async fn create_tree(
|
||||
while let Some(row) = rows.try_next().await.map_err(Error::LoadingRow)? {
|
||||
let node: Node = row.get::<i64, _>(0).into();
|
||||
|
||||
// Avoid checking if each value is unique if we were told that the
|
||||
// database query only returns unique values.
|
||||
let timer = crate::TREE_ADD_DURATION.start_timer();
|
||||
if config.database_is_unique || tree.find_exact(&node).is_none() {
|
||||
if tree.find_exact(&node).is_none() {
|
||||
tree.add(node);
|
||||
}
|
||||
timer.stop_and_record();
|
||||
|
||||
count += 1;
|
||||
if count % 250_000 == 0 {
|
||||
@ -88,56 +87,122 @@ struct Payload {
|
||||
///
|
||||
/// This will create a new tree to ensure all items are present. It will also
|
||||
/// automatically recreate trees as needed if the database connection is lost.
|
||||
pub(crate) async fn listen_for_payloads(
|
||||
pub(crate) async fn listen_for_payloads_db(
|
||||
conn: Pool<Postgres>,
|
||||
config: Config,
|
||||
subscription: String,
|
||||
query: String,
|
||||
tree: Tree,
|
||||
initial: futures::channel::oneshot::Sender<()>,
|
||||
) -> Result<(), Error> {
|
||||
let mut listener = PgListener::connect_with(&conn)
|
||||
.await
|
||||
.map_err(Error::Listener)?;
|
||||
listener
|
||||
.listen(&config.database_subscribe)
|
||||
.await
|
||||
.map_err(Error::Listener)?;
|
||||
|
||||
let new_tree = create_tree(&conn, &config).await?;
|
||||
{
|
||||
let mut tree = tree.write().await;
|
||||
*tree = new_tree;
|
||||
}
|
||||
|
||||
initial
|
||||
.send(())
|
||||
.expect_or_log("nothing listening for initial data");
|
||||
let mut initial = Some(initial);
|
||||
|
||||
loop {
|
||||
while let Some(notification) = listener.try_recv().await.map_err(Error::Listener)? {
|
||||
let payload: Payload =
|
||||
serde_json::from_str(notification.payload()).map_err(Error::Data)?;
|
||||
tracing::debug!(hash = payload.hash, "evaluating new payload");
|
||||
let mut listener = PgListener::connect_with(&conn)
|
||||
.await
|
||||
.map_err(Error::Listener)?;
|
||||
listener
|
||||
.listen(&subscription)
|
||||
.await
|
||||
.map_err(Error::Listener)?;
|
||||
|
||||
let node: Node = payload.hash.into();
|
||||
|
||||
let _timer = crate::TREE_ADD_DURATION.start_timer();
|
||||
|
||||
let mut tree = tree.write().await;
|
||||
if tree.find_exact(&node).is_some() {
|
||||
tracing::trace!("hash already existed in tree");
|
||||
continue;
|
||||
}
|
||||
|
||||
tracing::trace!("hash did not exist, adding to tree");
|
||||
tree.add(node);
|
||||
}
|
||||
|
||||
tracing::error!("disconnected from listener, recreating tree");
|
||||
tokio::time::sleep(std::time::Duration::from_secs(10)).await;
|
||||
let new_tree = create_tree(&conn, &config).await?;
|
||||
let new_tree = create_tree(&conn, &query).await?;
|
||||
{
|
||||
let mut tree = tree.write().await;
|
||||
*tree = new_tree;
|
||||
}
|
||||
|
||||
if let Some(initial) = initial.take() {
|
||||
initial
|
||||
.send(())
|
||||
.expect_or_log("nothing listening for initial data");
|
||||
}
|
||||
|
||||
while let Some(notification) = listener.try_recv().await.map_err(Error::Listener)? {
|
||||
tracing::trace!("got postgres payload");
|
||||
process_payload(&tree, notification.payload().as_bytes()).await?;
|
||||
}
|
||||
|
||||
tracing::error!("disconnected from postgres listener, recreating tree");
|
||||
tokio::time::sleep(std::time::Duration::from_secs(10)).await;
|
||||
}
|
||||
}
|
||||
|
||||
pub(crate) async fn listen_for_payloads_nats(
|
||||
config: Config,
|
||||
pool: sqlx::PgPool,
|
||||
client: async_nats::Client,
|
||||
tree: Tree,
|
||||
initial: futures::channel::oneshot::Sender<()>,
|
||||
) -> Result<(), Error> {
|
||||
static STREAM_NAME: &str = "bkapi-hashes";
|
||||
|
||||
let jetstream = async_nats::jetstream::new(client);
|
||||
let mut initial = Some(initial);
|
||||
|
||||
let stream = jetstream
|
||||
.get_or_create_stream(async_nats::jetstream::stream::Config {
|
||||
name: STREAM_NAME.to_string(),
|
||||
subjects: vec!["bkapi.add".to_string()],
|
||||
max_age: std::time::Duration::from_secs(60 * 60 * 24),
|
||||
retention: async_nats::jetstream::stream::RetentionPolicy::Interest,
|
||||
..Default::default()
|
||||
})
|
||||
.await?;
|
||||
|
||||
loop {
|
||||
let consumer = stream
|
||||
.get_or_create_consumer(
|
||||
"bkapi-consumer",
|
||||
async_nats::jetstream::consumer::pull::Config {
|
||||
..Default::default()
|
||||
},
|
||||
)
|
||||
.await?;
|
||||
|
||||
let new_tree = create_tree(&pool, &config.database_query).await?;
|
||||
{
|
||||
let mut tree = tree.write().await;
|
||||
*tree = new_tree;
|
||||
}
|
||||
|
||||
if let Some(initial) = initial.take() {
|
||||
initial
|
||||
.send(())
|
||||
.expect_or_log("nothing listening for initial data");
|
||||
}
|
||||
|
||||
let mut messages = consumer.messages().await?;
|
||||
|
||||
while let Ok(Some(message)) = messages.try_next().await {
|
||||
tracing::trace!("got nats payload");
|
||||
message.ack().await?;
|
||||
process_payload(&tree, &message.payload).await?;
|
||||
}
|
||||
|
||||
tracing::error!("disconnected from nats listener, recreating tree");
|
||||
tokio::time::sleep(std::time::Duration::from_secs(10)).await;
|
||||
}
|
||||
}
|
||||
|
||||
async fn process_payload(tree: &Tree, payload: &[u8]) -> Result<(), Error> {
|
||||
let payload: Payload = serde_json::from_slice(payload).map_err(Error::Data)?;
|
||||
tracing::trace!("got hash: {}", payload.hash);
|
||||
|
||||
let node: Node = payload.hash.into();
|
||||
|
||||
let _timer = TREE_ADD_DURATION.start_timer();
|
||||
|
||||
let is_new_hash = {
|
||||
let tree = tree.read().await;
|
||||
tree.find_exact(&node).is_none()
|
||||
};
|
||||
|
||||
if is_new_hash {
|
||||
let mut tree = tree.write().await;
|
||||
tree.add(node);
|
||||
}
|
||||
|
||||
tracing::debug!(hash = payload.hash, is_new_hash, "processed incoming hash");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user