/
testserver.rs
218 lines (189 loc) · 7.55 KB
/
testserver.rs
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#![deny(warnings)]
extern crate futures;
extern crate hyper;
extern crate pretty_env_logger;
extern crate webrust;
extern crate net2;
extern crate tokio_core;
extern crate tk_listen;
//extern crate futures;
//extern crate hyper;
//extern crate num_cpus;
//extern crate reader_writer;
use futures::Stream;
use net2::unix::UnixTcpBuilderExt;
use tokio_core::reactor::Core;
use tokio_core::net::TcpListener;
use std::thread;
use std::net::SocketAddr;
use std::sync::Arc;
use futures::future::FutureResult;
use hyper::{Get, StatusCode};
use hyper::header::ContentLength;
use hyper::server::{Http, Service, Request, Response};
use futures::Future;
//use std::time::Duration;
//use tk_listen::ListenExt;
use std::env;
//use tk_http::{Status};
//use tk_http::server::buffered::{Request, BufferedDispatcher};
//use tk_http::server::{self, Encoder, EncoderDone, Proto, Error};
//use hyper::{Delete, Get, Put, StatusCode};
//use hyper::header::ContentLength;
//use hyper::server::{Http, Service, Request, Response};
//#[macro_use]
//extern crate log;
//extern crate tlog;
use webrust::cpu_intensive_work;
extern crate prometheus;
use prometheus::{Registry, Gauge, Opts, Counter, Histogram, HistogramOpts, Encoder, TextEncoder};
// Srv struct bundles instruments for metrics collection and a thread ID to include
// in the metrics.
#[derive(Clone)]
struct Srv {
thread_id: String,
registry: Registry,
request_counter: Counter,
request_histogram: Histogram,
connection_gauge: Gauge,
finished_conn_counter: Counter,
}
impl Srv {
fn new(r: &Registry, thread_id: &String, cg: &Gauge, fcc: &Counter, rc: &Counter, rh: &Histogram) -> Srv {
let s = Srv {
registry: r.clone(),
thread_id: thread_id.clone(),
request_counter: rc.clone(),
request_histogram: rh.clone(),
connection_gauge: cg.clone(),
finished_conn_counter: fcc.clone(),
};
s.connection_gauge.inc();
s
}
}
impl Service for Srv {
type Request = Request;
type Response = Response;
type Error = hyper::Error;
type Future = FutureResult<Response, hyper::Error>;
// Serves the dummy data created from our CPU intensive work
// (and the metrics endpoint)
fn call(&self, req: Request) -> Self::Future {
futures::future::ok(match (req.method(), req.path()) {
(&Get, "/data") => {
self.request_counter.inc();
//info!("GET {} [{}]", req.path(), self.thread_id);
let timer = self.request_histogram.start_timer();
let b = cpu_intensive_work().into_bytes();
timer.observe_duration();
Response::new()
.with_header(ContentLength(b.len() as u64))
.with_body(b)
},
// Standard Prometheus metrics endpoint
(&Get, "/metrics") => {
let encoder = TextEncoder::new();
let metric_familys = self.registry.gather();
let mut buffer = vec![];
encoder.encode(&metric_familys, &mut buffer).unwrap();
Response::new()
.with_body(buffer)
},
_ => {
Response::new()
.with_status(StatusCode::NotFound)
}
})
}
}
impl Drop for Srv {
fn drop(&mut self) {
self.connection_gauge.dec();
self.finished_conn_counter.inc();
}
}
fn serve(thread_id: String, addr: &SocketAddr, protocol: &Http, registry: &Registry) {
let mut core = Core::new().unwrap();
let handle = core.handle();
let listener = net2::TcpBuilder::new_v4().unwrap()
.reuse_port(true).unwrap()
.bind(addr).unwrap()
.listen(128).unwrap();
// =================== START METRICS SETUP =====================
let acg_opts = Opts::new("conn_number", "conn number help").const_label("threadId", thread_id.as_str());
let active_conn_gauge = Gauge::with_opts(acg_opts).unwrap();
registry.register(Box::new(active_conn_gauge.clone())).unwrap();
let cc_opts = Opts::new("conn_counter", "conn counter help").const_label("threadId", thread_id.as_str());
let accepted_conn_counter = Counter::with_opts(cc_opts).unwrap();
registry.register(Box::new(accepted_conn_counter.clone())).unwrap();
let fcc_opts = Opts::new("finished_conn_counter", "finished_conn counter help").const_label("threadId", thread_id.as_str());
let finished_conn_counter = Counter::with_opts(fcc_opts).unwrap();
registry.register(Box::new(finished_conn_counter.clone())).unwrap();
let rc_opts = Opts::new("req_counter", "req counter help").const_label("threadId", thread_id.as_str());
let rc = Counter::with_opts(rc_opts).unwrap();
registry.register(Box::new(rc.clone())).unwrap();
let buckets = vec![0.001, 0.002, 0.005, 0.007, 0.010, 0.020, 0.030, 0.040, 0.050, 0.1, 0.2, 0.3, 0.5, 1.0, 5.0];
let h_opts = HistogramOpts::new("http_request_duration_seconds", "request duration seconds help")
.const_label("threadId", thread_id.as_str())
.buckets(buckets);
let h = Histogram::with_opts(h_opts).unwrap();
registry.register(Box::new(h.clone())).unwrap();
// =================== END METRICS SETUP =====================
let listener = TcpListener::from_listener(listener, addr, &handle).unwrap();
core.run(listener.incoming().for_each(|(socket, addr)| {
//info!("Connection");
let s = Srv::new(registry, &thread_id, &active_conn_gauge, &finished_conn_counter, &rc, &h);
accepted_conn_counter.inc();
protocol.bind_connection(&handle, socket, addr, s);
Ok(())
}).or_else(|e| -> FutureResult<(), ()> {
panic!("TCP listener failed: {}", e);
})
).unwrap();
// core.run(
// listener.incoming()
// // .or_else(|e| {
// // println!("Connection error: {}", e);
// // Err(e)
// // })
// .sleep_on_error(Duration::from_millis(1000), &handle)
// .map(move |(socket, addr)| {
// let s = Srv::new(registry, &thread_id, &active_conn_gauge, &finished_conn_counter, &rc, &h);
// accepted_conn_counter.inc();
// protocol.bind_connection(&handle, socket, addr, s);
// // Proto::new(socket, &scfg,
// // BufferedDispatcher::new(addr, &h1, || service),
// // &h1)
// // Log error, effectively making error type of a future nil `()`
// // .map_err(|e| { println!("Connection error: {}", e); })
// Ok(())
// })
// .listen(100000) // max connections
//).unwrap();
}
fn start_server(n: usize, addr: &str) {
let reg = Registry::new();
let addr = addr.parse().unwrap();
let protocol = Arc::new(Http::new());
for i in 0..n - 1 {
//info!("Starting Thread");
let protocol = protocol.clone();
let r = reg.clone();
let thread_id = format!("thread-{}", i);
thread::spawn(move || serve(thread_id, &addr, &protocol, &r));
}
let thread_id = format!("thread-{}", n - 1);
serve(thread_id, &addr, &protocol, ®);
}
fn main() {
//tlog::init_lock_free_logger().unwrap();
// tlog::init_mutex_logger().unwrap();
//info!("Starting Server");
let args: Vec<_> = env::args().collect();
if args.len() < 2 {
panic!("Please state the number of threads to start");
}
let n = usize::from_str_radix(&args[1], 10).unwrap();
start_server(n, "0.0.0.0:8080");
}