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{ version = "0.2", features = ["macros", "rt-threaded", "time"] } +tonic = "0.3.1" +warp = "0.2" +ngt = "0.2.1" +log = "0.4.11" +env_logger = "0.8.2" + +[build-dependencies] +tonic-build = "0.3" diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..fff86f4 --- /dev/null +++ b/Makefile @@ -0,0 +1,74 @@ +ORG = rinx +ALTORG = ghcr.io/rinx +REPO = vald-agent-ngt-rs + +VALD_DIR = vald +VALD_REPO = vdaas/vald +VALD_BRANCH = feature/apis/v1-new-design +VALD_DEPTH = 1 + +DOCKER ?= docker +DOCKER_OPTS ?= + +RUSTFLAGS ?= -Clink-arg=-fuse-ld=gold + +.PHONY: +all: build + +.PHONY: clean +clean: + rm -rf \ + target \ + $(VALD_DIR) + +.PHONY: build +build: \ + target/debug/vald-agent-ngt-rs + +.PHONY: build/release +build/release: \ + target/release/vald-agent-ngt-rs + + +target/debug/vald-agent-ngt-rs: \ + proto \ + apis/proto/v1 \ + Cargo.toml \ + $(shell find ./src -type f -name '*.rs') + cargo build + +target/release/vald-agent-ngt-rs: \ + proto \ + apis/proto/v1 \ + Cargo.toml \ + $(shell find ./src -type f -name '*.rs') + cargo build --release + +proto: \ + proto/github.com/envoyproxy/protoc-gen-validate \ + proto/github.com/googleapis/googleapis + +proto/github.com/envoyproxy/protoc-gen-validate: + mkdir -p proto + git clone --depth 1 \ + https://github.com/envoyproxy/protoc-gen-validate \ + proto/github.com/envoyproxy/protoc-gen-validate + +proto/github.com/googleapis/googleapis: + mkdir -p proto + git clone --depth 1 \ + https://github.com/googleapis/googleapis \ + proto/github.com/googleapis/googleapis + +apis/proto/v1: \ + proto \ + $(VALD_DIR) + mkdir -p apis/proto + cp -r $(VALD_DIR)/apis/proto/v1 $@ + +$(VALD_DIR): + git clone \ + --depth $(VALD_DEPTH) \ + -b $(VALD_BRANCH) \ + https://github.com/$(VALD_REPO) \ + $(VALD_DIR) diff --git a/README.md b/README.md new file mode 100644 index 0000000..323552d --- /dev/null +++ b/README.md @@ -0,0 +1,17 @@ +vald-agent-ngt-rs +=== + +This is an experimental project. +Implementing Vald Agent NGT using Rust and ngt-rs. + +Current Status +--- + +- Using Vald v1 APIs. + - [X] Insert + - [ ] StreamInsert + - [X] Search + - [ ] StreamSearch + - [ ] SearchByID + - [ ] StreamSearchByID + - [X] CreateIndex diff --git a/build.rs b/build.rs new file mode 100644 index 0000000..14dae9f --- /dev/null +++ b/build.rs @@ -0,0 +1,25 @@ +fn main() -> Result<(), Box> { + tonic_build::configure() + .build_server(true) + .build_client(true) + .format(true) + .compile( + &[ + "apis/proto/v1/payload/payload.proto", + "apis/proto/v1/vald/insert.proto", + "apis/proto/v1/vald/object.proto", + "apis/proto/v1/vald/remove.proto", + "apis/proto/v1/vald/search.proto", + "apis/proto/v1/vald/update.proto", + "apis/proto/v1/vald/upsert.proto", + "apis/proto/v1/agent/core/agent.proto", + ], + &[ + ".", + "proto", + "proto/github.com/googleapis/googleapis", + "apis/proto", + ], + )?; + Ok(()) +} diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..7851c98 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,48 @@ +use tonic::transport::Server; +use futures::future; +use warp::Filter; +use log::{ + debug, + error, + info, + warn, +}; + +mod prometheus; +use crate::prometheus::metrics_handler; + +mod vald; +use crate::vald::{ + ValdImpl, + InsertServer, + SearchServer, + AgentServer, +}; + +mod ngt; +use crate::ngt::NGT; + +#[tokio::main] +async fn main() { + std::env::set_var("RUST_LOG", "info"); + env_logger::init(); + + let addr = "0.0.0.0:8080".parse().unwrap(); + let mut vald = ValdImpl::default(); + + vald.initialize().unwrap(); + + let grpc_server = Server::builder() + .add_service(InsertServer::new(vald.clone())) + .add_service(SearchServer::new(vald.clone())) + .add_service(AgentServer::new(vald)) + .serve(addr); + info!("gRPC server started: {}", addr); + + let metrics_route = warp::path!("metrics").and_then(metrics_handler); + let (_metrics_addr, metrics_warp) = warp::serve(metrics_route) + .bind_ephemeral(([0, 0, 0, 0], 9090)); + info!("Prometheus server started: 0.0.0.0:9090"); + + future::join(grpc_server, metrics_warp).await; +} diff --git a/src/ngt.rs b/src/ngt.rs new file mode 100644 index 0000000..eab8478 --- /dev/null +++ b/src/ngt.rs @@ -0,0 +1,109 @@ +use ngt::{DistanceType, Index, ObjectType, Properties}; + +use std::collections::HashMap; +use std::io; +use std::sync::Mutex; + +use super::vald::payload::v1::object::Distance; + +#[derive(Debug)] +pub struct NGT { + index: Option, + + id_oid: Mutex>, + oid_id: Mutex>, + + dimension: usize, + distance_type: DistanceType, + object_type: ObjectType, + index_path: String, +} + +impl Default for NGT { + fn default() -> Self { + NGT { + index: None, + id_oid: Mutex::new(HashMap::new()), + oid_id: Mutex::new(HashMap::new()), + dimension: 784, + distance_type: DistanceType::L2, + object_type: ObjectType::Float, + index_path: "index".to_string(), + } + } +} + +impl NGT { + pub fn initialize(&mut self) -> Result<(), ngt::Error> { + let prop = Properties::dimension(self.dimension)? + .distance_type(self.distance_type)? + .object_type(self.object_type)?; + let index = Index::create("index", prop)?; + + self.index = Some(index); + + Ok(()) + } + + pub fn insert(&mut self, id: &str, vec: Vec) -> Result { + let index = match &mut self.index { + Some(index) => index, + None => { + panic!("NGT index is not opened"); + } + }; + + let oid = index.insert(vec).unwrap(); + + self.id_oid.lock().unwrap().insert(id.to_string(), oid); + self.oid_id.lock().unwrap().insert(oid, id.to_string()); + + Ok(oid) + } + + pub fn search( + &self, + vec: Vec, + num: u64, + epsilon: f32, + ) -> Result, io::Error> { + let index = match &self.index { + Some(index) => index, + None => { + panic!("NGT index is not opened"); + } + }; + + let results = index + .search(&vec, num, epsilon) + .unwrap() + .iter() + .map(|r| { + let id = match self.oid_id.lock().unwrap().get(&r.id) { + Some(id) => id.to_string(), + None => "".to_string(), + }; + + Distance { + id, + distance: r.distance, + } + }) + .collect(); + + Ok(results) + } + + pub fn create_index(&mut self) -> Result<(), io::Error> { + let index = match &mut self.index { + Some(index) => index, + None => { + panic!("NGT index is not opened"); + } + }; + + index.build(1).unwrap(); + + Ok(()) + } +} diff --git a/src/prometheus.rs b/src/prometheus.rs new file mode 100644 index 0000000..dc4e2d7 --- /dev/null +++ b/src/prometheus.rs @@ -0,0 +1,47 @@ +use lazy_static::lazy_static; + +use warp::{ + Rejection, + Reply, +}; + +use prometheus::Registry; + +lazy_static! { + pub static ref REGISTRY: Registry = Registry::new(); +} + +pub async fn metrics_handler() -> Result { + use prometheus::Encoder; + let encoder = prometheus::TextEncoder::new(); + + let mut buffer = Vec::new(); + if let Err(e) = encoder.encode(®ISTRY.gather(), &mut buffer) { + eprintln!("could not encode custom metrics: {}", e); + } + + let mut res = match String::from_utf8(buffer.clone()) { + Ok(v) => v, + Err(e) => { + eprintln!("custom metrics could not be from_utf8'd: {}", e); + String::default() + } + }; + buffer.clear(); + + let mut buffer = Vec::new(); + if let Err(e) = encoder.encode(&prometheus::gather(), &mut buffer) { + eprintln!("could not encode prometheus metrics: {}", e); + }; + let res_custom = match String::from_utf8(buffer.clone()) { + Ok(v) => v, + Err(e) => { + eprintln!("prometheus metrics could not be from_utf8'd: {}", e); + String::default() + } + }; + buffer.clear(); + + res.push_str(&res_custom); + Ok(res) +} diff --git a/src/vald.rs b/src/vald.rs new file mode 100644 index 0000000..419017a --- /dev/null +++ b/src/vald.rs @@ -0,0 +1,219 @@ +use tonic::{ + Request, + Response, + Status, + Streaming, +}; + +use tokio::sync::mpsc; + +use std::io; +use std::sync::{ + Arc, + Mutex, +}; +use std::result::Result; + +use crate::ngt::NGT; + +pub use vald::v1::insert_server::{ + Insert, + InsertServer, +}; + +pub use vald::v1::search_server::{ + Search, + SearchServer, +}; + +pub use self::core::v1::agent_server:: { + Agent, + AgentServer, +}; + +pub mod vald { + pub mod v1 { + tonic::include_proto!("vald.v1"); + } +} + +pub mod core { + pub mod v1 { + tonic::include_proto!("core.v1"); + } +} + +pub mod payload { + pub mod v1 { + tonic::include_proto!("payload.v1"); + } +} + +#[derive(Debug, Default)] +pub struct ValdImpl { + ngt: Arc>, +} + +impl ValdImpl { + pub fn initialize(&self) -> Result<(), io::Error> { + &self.ngt.lock().unwrap().initialize().unwrap(); + + Ok(()) + } +} + +impl Clone for ValdImpl { + fn clone(&self) -> ValdImpl { + ValdImpl { + ngt: self.ngt.clone(), + } + } +} + +#[tonic::async_trait] +impl Insert for ValdImpl { + async fn insert( + &self, + request: Request, + ) -> Result, Status> { + let msg = request.get_ref(); + let obj = match &msg.vector { + Some(o) => o, + None => return Err(Status::invalid_argument("vector is required.")), + }; + let name = obj.id.clone(); + let vector = obj.vector.clone(); + + let uuid = match &self.ngt.lock().unwrap().insert(&name, vector){ + Ok(oid) => oid.to_string(), + Err(err) => return Err(Status::internal(err.to_string())), + }; + + let reply = payload::v1::object::Location{ + name, + uuid, + ips: vec!["192.168.1.1".to_string()], + }; + + Ok(Response::new(reply)) + } + + type StreamInsertStream = mpsc::Receiver>; + + async fn stream_insert( + &self, + request: Request>, + ) -> Result, Status> { + unimplemented!() + } + + async fn multi_insert( + &self, + request: Request, + ) -> Result, Status> { + unimplemented!() + } +} + +#[tonic::async_trait] +impl Search for ValdImpl { + async fn search( + &self, + request: Request, + ) -> Result, Status> { + let msg = request.get_ref(); + let vector: Vec = msg.vector.iter().map(|f| { + *f as f64 + }).collect(); + let config = match &msg.config { + Some(c) => c, + None => return Err(Status::invalid_argument("config is required.")), + }; + + let request_id = config.request_id.clone(); + let num: u64 = From::from(config.num); + + let results = self.ngt.lock().unwrap().search(vector, num, config.epsilon).unwrap(); + + let reply = payload::v1::search::Response{ + request_id, + results, + }; + + Ok(Response::new(reply)) + } + + async fn search_by_id( + &self, + request: Request, + ) -> Result, Status> { + unimplemented!() + } + + type StreamSearchStream = mpsc::Receiver>; + + async fn stream_search( + &self, + request: Request>, + ) -> Result, Status> { + unimplemented!() + } + + type StreamSearchByIDStream = mpsc::Receiver>; + + async fn stream_search_by_id( + &self, + request: Request>, + ) -> Result, Status> { + unimplemented!() + } + + async fn multi_search( + &self, + request: Request, + ) -> Result, Status> { + unimplemented!() + } + + async fn multi_search_by_id( + &self, + request: Request, + ) -> Result,Status> { + unimplemented!() + } +} + +#[tonic::async_trait] +impl Agent for ValdImpl { + async fn create_index( + &self, + request: Request, + ) -> Result, Status> { + &self.ngt.lock().unwrap().create_index(); + + let res = payload::v1::Empty {}; + + Ok(Response::new(res)) + } + + async fn save_index( + &self, + request: Request, + ) -> Result, Status> { + unimplemented!() + } + + async fn create_and_save_index( + &self, + request: Request, + ) -> Result, Status> { + unimplemented!() + } + + async fn index_info( + &self, + request: Request, + ) -> Result,Status> { + unimplemented!() + } +}