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mod.rs
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pub mod message;
pub mod transport;
#[cfg(not(target_os = "windows"))]
pub mod worker_pool;
#[cfg(not(target_os = "windows"))]
use crate::cluster::worker_pool::{worker_main, MessageProcessor, WorkerPool};
use crate::ack_error;
use crate::cluster::message::NetworkMessage;
use crate::cluster::transport::{ClusterTransport, MetaStoreTransport, WorkerConnection};
use crate::config::injection::{DIService, Injector};
use crate::config::is_router;
#[allow(unused_imports)]
use crate::config::{Config, ConfigObj};
use crate::import::ImportService;
use crate::metastore::chunks::chunk_file_name;
use crate::metastore::job::{Job, JobStatus, JobType};
use crate::metastore::table::Table;
use crate::metastore::{Chunk, IdRow, MetaStore, MetaStoreEvent, Partition, RowKey, TableId};
use crate::metastore::{
MetaStoreRpcClientTransport, MetaStoreRpcMethodCall, MetaStoreRpcMethodResult,
MetaStoreRpcServer,
};
use crate::queryplanner::query_executor::{QueryExecutor, SerializedRecordBatchStream};
use crate::queryplanner::serialized_plan::SerializedPlan;
use crate::remotefs::RemoteFs;
use crate::store::compaction::CompactionService;
use crate::store::ChunkDataStore;
use crate::util::aborting_join_handle::AbortingJoinHandle;
use crate::CubeError;
use arrow::datatypes::SchemaRef;
use arrow::error::ArrowError;
use arrow::record_batch::RecordBatch;
use async_trait::async_trait;
use chrono::Utc;
use core::mem;
use datafusion::cube_ext;
use datafusion::physical_plan::{RecordBatchStream, SendableRecordBatchStream};
use flatbuffers::bitflags::_core::pin::Pin;
use futures::future::join_all;
use futures::task::{Context, Poll};
use futures::{Future, Stream};
use futures_timer::Delay;
use itertools::Itertools;
use log::{debug, error, info, warn};
use mockall::automock;
use regex::Regex;
use serde::{Deserialize, Serialize};
use std::collections::hash_map::DefaultHasher;
use std::collections::{HashMap, HashSet};
use std::hash::{Hash, Hasher};
use std::path::Path;
use std::sync::Weak;
use std::sync::{Arc, Mutex};
use std::time::Duration;
use std::time::SystemTime;
use tokio::fs;
use tokio::fs::File;
use tokio::io::AsyncWriteExt;
use tokio::net::{TcpListener, TcpStream};
use tokio::sync::broadcast::{Receiver, Sender};
use tokio::sync::{oneshot, watch, Notify, RwLock};
use tokio::task::JoinHandle;
use tokio::time::timeout;
use tokio_util::sync::CancellationToken;
use tracing::{instrument, Instrument};
#[automock]
#[async_trait]
pub trait Cluster: DIService + Send + Sync {
async fn notify_job_runner(&self, node_name: String) -> Result<(), CubeError>;
fn config(&self) -> Arc<dyn ConfigObj>;
/// Send full select to a worker, which will act as the main node for the query.
async fn route_select(
&self,
node_name: &str,
plan: SerializedPlan,
) -> Result<(SchemaRef, Vec<SerializedRecordBatchStream>), CubeError>;
/// Runs select on a single worker node to get partial results from that worker.
async fn run_select(
&self,
node_name: &str,
plan: SerializedPlan,
) -> Result<Vec<RecordBatch>, CubeError>;
/// Like [run_select], but streams results as they are requested.
/// This allows to send only a limited number of results, if the caller does not need all.
async fn run_select_stream(
&self,
node_name: &str,
plan: SerializedPlan,
) -> Result<SendableRecordBatchStream, CubeError>;
async fn available_nodes(&self) -> Result<Vec<String>, CubeError>;
fn server_name(&self) -> &str;
async fn warmup_download(&self, node_name: &str, remote_path: String) -> Result<(), CubeError>;
async fn warmup_partition(
&self,
partition: IdRow<Partition>,
chunks: Vec<IdRow<Chunk>>,
) -> Result<(), CubeError>;
async fn add_memory_chunk(
&self,
node_name: &str,
chunk_id: u64,
batch: RecordBatch,
) -> Result<(), CubeError>;
async fn free_memory_chunk(&self, node_name: &str, chunk_id: u64) -> Result<(), CubeError>;
fn job_result_listener(&self) -> JobResultListener;
fn node_name_by_partition(&self, p: &IdRow<Partition>) -> String;
async fn node_name_for_import(
&self,
table_id: u64,
location: &str,
) -> Result<String, CubeError>;
async fn process_message_on_worker(&self, m: NetworkMessage) -> NetworkMessage;
async fn process_metastore_message(&self, m: NetworkMessage) -> NetworkMessage;
}
crate::di_service!(MockCluster, [Cluster]);
#[derive(Clone, Debug, Serialize, Deserialize, Hash, Eq, PartialEq)]
pub enum JobEvent {
Started(RowKey, JobType),
Success(RowKey, JobType),
Error(RowKey, JobType, String),
}
pub struct ClusterImpl {
this: Weak<ClusterImpl>,
// Used in order to avoid cycle dependencies.
// Convention is every service can reference cluster but cluster shouldn't reference services.
// TODO revisit cycle dependencies: try to extract cluster transport separately?
// Weak to avoid cycle reference counting and memory leaks
injector: Weak<Injector>,
remote_fs: Arc<dyn RemoteFs>,
meta_store: Arc<dyn MetaStore>,
cluster_transport: Arc<dyn ClusterTransport>,
connect_timeout: Duration,
server_name: String,
server_addresses: Vec<String>,
job_notify: Arc<Notify>,
meta_store_sender: Sender<MetaStoreEvent>,
#[cfg(not(target_os = "windows"))]
select_process_pool: RwLock<
Option<
Arc<
WorkerPool<
WorkerMessage,
(SchemaRef, Vec<SerializedRecordBatchStream>),
WorkerProcessor,
>,
>,
>,
>,
config_obj: Arc<dyn ConfigObj>,
query_executor: Arc<dyn QueryExecutor>,
stop_token: CancellationToken,
close_worker_socket_tx: watch::Sender<bool>,
close_worker_socket_rx: RwLock<watch::Receiver<bool>>,
}
crate::di_service!(ClusterImpl, [Cluster]);
#[derive(Debug, Serialize, Deserialize)]
pub enum WorkerMessage {
Select(
SerializedPlan,
HashMap<String, String>,
HashMap<u64, Vec<SerializedRecordBatchStream>>,
),
}
#[cfg(not(target_os = "windows"))]
pub struct WorkerProcessor;
#[cfg(not(target_os = "windows"))]
#[async_trait]
impl MessageProcessor<WorkerMessage, (SchemaRef, Vec<SerializedRecordBatchStream>)>
for WorkerProcessor
{
async fn process(
args: WorkerMessage,
) -> Result<(SchemaRef, Vec<SerializedRecordBatchStream>), CubeError> {
match args {
WorkerMessage::Select(plan_node, remote_to_local_names, chunk_id_to_record_batches) => {
debug!("Running select in worker started: {:?}", plan_node);
let plan_node_to_send = plan_node.clone();
let result = chunk_id_to_record_batches
.into_iter()
.map(|(id, batches)| -> Result<_, CubeError> {
Ok((
id,
batches
.into_iter()
.map(|b| b.read())
.collect::<Result<Vec<_>, _>>()?,
))
})
.collect::<Result<HashMap<_, _>, _>>()?;
let res = Config::current_worker_services()
.query_executor
.execute_worker_plan(plan_node_to_send, remote_to_local_names, result)
.await;
debug!("Running select in worker completed: {:?}", plan_node);
let (schema, records) = res?;
let records = SerializedRecordBatchStream::write(schema.as_ref(), records)?;
Ok((schema, records))
}
}
}
}
#[cfg(not(target_os = "windows"))]
#[ctor::ctor]
fn proc_handler() {
crate::util::respawn::register_handler(
worker_main::<WorkerMessage, (SchemaRef, Vec<SerializedRecordBatchStream>), WorkerProcessor>,
);
}
struct JobRunner {
config_obj: Arc<dyn ConfigObj>,
meta_store: Arc<dyn MetaStore>,
chunk_store: Arc<dyn ChunkDataStore>,
compaction_service: Arc<dyn CompactionService>,
import_service: Arc<dyn ImportService>,
server_name: String,
notify: Arc<Notify>,
stop_token: CancellationToken,
}
lazy_static! {
static ref HEART_BEAT_NODE_REGEX: Regex =
Regex::new(r"^node-heart-beats/(?P<node>.*)$").unwrap();
}
#[async_trait]
impl Cluster for ClusterImpl {
async fn notify_job_runner(&self, node_name: String) -> Result<(), CubeError> {
if self.server_name == node_name {
self.job_notify.notify_waiters();
} else {
self.send_to_worker(&node_name, NetworkMessage::NotifyJobListeners)
.await?;
}
Ok(())
}
fn config(&self) -> Arc<dyn ConfigObj> {
self.config_obj.clone()
}
async fn route_select(
&self,
node_name: &str,
plan: SerializedPlan,
) -> Result<(SchemaRef, Vec<SerializedRecordBatchStream>), CubeError> {
let response = self
.send_or_process_locally(&node_name, NetworkMessage::RouterSelect(plan))
.await?;
match response {
NetworkMessage::SelectResult(r) => r,
_ => panic!("unexpected response for route select"),
}
}
#[instrument(level = "trace", skip(self, plan_node))]
async fn run_select(
&self,
node_name: &str,
plan_node: SerializedPlan,
) -> Result<Vec<RecordBatch>, CubeError> {
let response = self
.send_or_process_locally(node_name, NetworkMessage::Select(plan_node))
.await?;
match response {
NetworkMessage::SelectResult(r) => {
r.and_then(|(_, batches)| batches.into_iter().map(|b| b.read()).collect())
}
_ => panic!("unexpected response for select"),
}
}
async fn run_select_stream(
&self,
node_name: &str,
plan: SerializedPlan,
) -> Result<SendableRecordBatchStream, CubeError> {
self.this
.upgrade()
.unwrap()
.run_select_stream_impl(node_name, plan)
.await
}
async fn available_nodes(&self) -> Result<Vec<String>, CubeError> {
Ok(vec![self.server_name.to_string()])
}
fn server_name(&self) -> &str {
self.server_name.as_str()
}
async fn warmup_download(&self, node_name: &str, remote_path: String) -> Result<(), CubeError> {
// We only wait for the result is to ensure our request is delivered.
let response = self
.send_or_process_locally(node_name, NetworkMessage::WarmupDownload(remote_path))
.await?;
match response {
NetworkMessage::WarmupDownloadResult(r) => r,
_ => panic!("unexpected result for warmup download"),
}
}
async fn add_memory_chunk(
&self,
node_name: &str,
chunk_id: u64,
batch: RecordBatch,
) -> Result<(), CubeError> {
let record_batch = SerializedRecordBatchStream::write(&batch.schema(), vec![batch])?;
let response = self
.send_or_process_locally(
node_name,
NetworkMessage::AddMemoryChunk {
chunk_id,
data: record_batch.into_iter().next().unwrap(),
},
)
.await?;
match response {
NetworkMessage::AddMemoryChunkResult(r) => r,
x => panic!("Unexpected result for add chunk: {:?}", x),
}
}
async fn free_memory_chunk(&self, node_name: &str, chunk_id: u64) -> Result<(), CubeError> {
let response = self
.send_or_process_locally(node_name, NetworkMessage::FreeMemoryChunk { chunk_id })
.await?;
match response {
NetworkMessage::FreeMemoryChunkResult(r) => r,
x => panic!("Unexpected result for add chunk: {:?}", x),
}
}
fn job_result_listener(&self) -> JobResultListener {
JobResultListener {
receiver: self.meta_store_sender.subscribe(),
}
}
fn node_name_by_partition(&self, p: &IdRow<Partition>) -> String {
if let Some(id) = p.get_row().multi_partition_id() {
pick_worker_by_ids(self.config_obj.as_ref(), [id]).to_string()
} else {
pick_worker_by_partitions(self.config_obj.as_ref(), [p]).to_string()
}
}
async fn node_name_for_import(
&self,
table_id: u64,
location: &str,
) -> Result<String, CubeError> {
let workers = self.config_obj.select_workers();
if workers.is_empty() {
return Ok(self.server_name.to_string());
}
let mut hasher = DefaultHasher::new();
table_id.hash(&mut hasher);
location.hash(&mut hasher);
Ok(workers[(hasher.finish() % workers.len() as u64) as usize].to_string())
}
async fn warmup_partition(
&self,
partition: IdRow<Partition>,
chunks: Vec<IdRow<Chunk>>,
) -> Result<(), CubeError> {
let node_name = self.node_name_by_partition(&partition);
let mut futures = Vec::new();
if let Some(name) = partition.get_row().get_full_name(partition.get_id()) {
futures.push(self.warmup_download(&node_name, name));
}
for chunk in chunks.iter() {
let name = chunk.get_row().get_full_name(chunk.get_id());
futures.push(self.warmup_download(&node_name, name));
}
join_all(futures)
.await
.into_iter()
.collect::<Result<Vec<_>, _>>()?;
Ok(())
}
#[instrument(level = "trace", skip(self, m))]
async fn process_message_on_worker(&self, m: NetworkMessage) -> NetworkMessage {
match m {
NetworkMessage::RouterSelect(plan) => {
let res = self
.query_executor
.execute_router_plan(plan, self.this.upgrade().unwrap())
.await
.and_then(|(schema, records)| {
let records = SerializedRecordBatchStream::write(&schema, records)?;
Ok((schema, records))
});
NetworkMessage::SelectResult(res)
}
NetworkMessage::Select(plan) => {
let res = self.run_local_select_worker(plan).await;
NetworkMessage::SelectResult(res)
}
NetworkMessage::WarmupDownload(remote_path) => {
let res = self.remote_fs.download_file(&remote_path).await;
NetworkMessage::WarmupDownloadResult(res.map(|_| ()))
}
NetworkMessage::SelectResult(_) | NetworkMessage::WarmupDownloadResult(_) => {
panic!("result sent to worker");
}
NetworkMessage::AddMemoryChunk { chunk_id, data } => {
let res = match data.read() {
Ok(batch) => {
let chunk_store = self
.injector
.upgrade()
.unwrap()
.get_service_typed::<dyn ChunkDataStore>()
.await;
chunk_store.add_memory_chunk(chunk_id, batch).await
}
Err(e) => Err(e),
};
NetworkMessage::AddMemoryChunkResult(res)
}
NetworkMessage::AddMemoryChunkResult(_) => {
panic!("AddChunkResult sent to worker");
}
NetworkMessage::FreeMemoryChunk { chunk_id } => {
let chunk_store = self
.injector
.upgrade()
.unwrap()
.get_service_typed::<dyn ChunkDataStore>()
.await;
let res = chunk_store.free_memory_chunk(chunk_id).await;
NetworkMessage::FreeMemoryChunkResult(res)
}
NetworkMessage::FreeMemoryChunkResult(_) => {
panic!("AddChunkResult sent to worker");
}
NetworkMessage::MetaStoreCall(_) | NetworkMessage::MetaStoreCallResult(_) => {
panic!("MetaStoreCall sent to worker");
}
NetworkMessage::NotifyJobListeners => {
self.job_notify.notify_waiters();
NetworkMessage::NotifyJobListenersSuccess
}
NetworkMessage::NotifyJobListenersSuccess => {
panic!("NotifyJobListenersSuccess sent to worker")
}
NetworkMessage::SelectStart(..)
| NetworkMessage::SelectResultSchema(..)
| NetworkMessage::SelectResultBatch(..) => {
panic!("streaming request passed to process_message")
}
}
}
async fn process_metastore_message(&self, m: NetworkMessage) -> NetworkMessage {
match m {
NetworkMessage::MetaStoreCall(method_call) => {
let server = MetaStoreRpcServer::new(self.meta_store.clone());
let res = server.invoke_method(method_call).await;
NetworkMessage::MetaStoreCallResult(res)
}
x => panic!("Unexpected message: {:?}", x),
}
}
}
#[async_trait]
pub trait MessageStream: Send + Sync {
async fn next(&mut self) -> (NetworkMessage, /*finished*/ bool);
}
pub struct JobResultListener {
receiver: Receiver<MetaStoreEvent>,
}
impl JobResultListener {
pub async fn wait_for_job_result(
self,
row_key: RowKey,
job_type: JobType,
) -> Result<JobEvent, CubeError> {
Ok(self
.wait_for_job_results(vec![(row_key, job_type)])
.await?
.into_iter()
.nth(0)
.unwrap())
}
pub async fn wait_for_job_results(
mut self,
mut results: Vec<(RowKey, JobType)>,
) -> Result<Vec<JobEvent>, CubeError> {
let mut res = Vec::new();
loop {
if results.len() == 0 {
return Ok(res);
}
let event = self.receiver.recv().await?;
if let MetaStoreEvent::UpdateJob(old, new) = &event {
if old.get_row().status() != new.get_row().status() {
let job_event = match new.get_row().status() {
JobStatus::Scheduled(_) => None,
JobStatus::ProcessingBy(_) => None,
JobStatus::Completed => Some(JobEvent::Success(
new.get_row().row_reference().clone(),
new.get_row().job_type().clone(),
)),
JobStatus::Timeout => Some(JobEvent::Error(
new.get_row().row_reference().clone(),
new.get_row().job_type().clone(),
"Job timed out".to_string(),
)),
JobStatus::Error(e) => Some(JobEvent::Error(
new.get_row().row_reference().clone(),
new.get_row().job_type().clone(),
e.to_string(),
)),
};
if let Some(event) = job_event {
if let JobEvent::Success(k, t) | JobEvent::Error(k, t, _) = &event {
if let Some((index, _)) = results
.iter()
.find_position(|(row_key, job_type)| k == row_key && t == job_type)
{
res.push(event);
results.remove(index);
}
}
}
}
}
}
}
}
impl JobRunner {
async fn processing_loop(&self) {
loop {
let res = tokio::select! {
_ = self.stop_token.cancelled() => {
return;
}
_ = self.notify.notified() => {
self.fetch_and_process().await
}
_ = Delay::new(Duration::from_secs(5)) => {
self.fetch_and_process().await
}
};
if let Err(e) = res {
error!("Error in processing loop: {}", e);
}
}
}
async fn fetch_and_process(&self) -> Result<(), CubeError> {
let job = self
.meta_store
.start_processing_job(self.server_name.to_string())
.await?;
if let Some(to_process) = job {
self.run_local(to_process).await?;
}
Ok(())
}
fn job_timeout(&self, job: &IdRow<Job>) -> Option<Duration> {
if let JobType::TableImportCSV(location) = job.get_row().job_type() {
if Table::is_stream_location(location) {
return None;
}
}
Some(Duration::from_secs(self.config_obj.import_job_timeout()))
}
async fn run_local(&self, job: IdRow<Job>) -> Result<(), CubeError> {
let start = SystemTime::now();
let job_id = job.get_id();
let (mut tx, rx) = oneshot::channel::<()>();
let meta_store = self.meta_store.clone();
let heart_beat_timer = cube_ext::spawn(async move {
loop {
tokio::select! {
_ = tx.closed() => {
break;
}
_ = Delay::new(Duration::from_secs(30)) => {
let _ = meta_store.update_heart_beat(job_id).await; // TODO handle result
}
}
}
});
debug!("Running job: {:?}", job);
let handle = AbortingJoinHandle::new(self.route_job(job.get_row())?);
// TODO cancel job if this worker isn't job owner anymore
let res = if let Some(duration) = self.job_timeout(&job) {
let future = timeout(duration, handle);
// TODO duplicate
tokio::select! {
_ = self.stop_token.cancelled() => {
Err(CubeError::user("shutting down".to_string()))
}
res = future => {
res.map_err(|_| CubeError::user("timed out".to_string()))
}
}
} else {
// TODO duplicate
tokio::select! {
_ = self.stop_token.cancelled() => {
Err(CubeError::user("shutting down".to_string()))
}
res = handle => {
Ok(res)
}
}
};
mem::drop(rx);
heart_beat_timer.await?;
if let Err(e) = res {
self.meta_store
.update_status(job_id, JobStatus::Timeout)
.await?;
error!(
"Running job {} ({:?}): {:?}",
e.message,
start.elapsed()?,
self.meta_store.get_job(job_id).await?
);
} else if let Ok(Err(cube_err)) = res {
self.meta_store
.update_status(job_id, JobStatus::Error(cube_err.to_string()))
.await?;
error!(
"Running job join error ({:?}): {:?}",
start.elapsed()?,
self.meta_store.get_job(job_id).await?
);
} else if let Ok(Ok(Err(cube_err))) = res {
self.meta_store
.update_status(job_id, JobStatus::Error(cube_err.to_string()))
.await?;
error!(
"Error while running job {}: {}",
job_id,
cube_err.display_with_backtrace()
);
error!(
"Running job error ({:?}): {:?}",
start.elapsed()?,
self.meta_store.get_job(job_id).await?
);
} else {
let job = self
.meta_store
.update_status(job_id, JobStatus::Completed)
.await?;
info!("Running job completed ({:?}): {:?}", start.elapsed()?, job);
// TODO delete jobs on reconciliation
self.meta_store.delete_job(job_id).await?;
}
Ok(())
}
fn route_job(&self, job: &Job) -> Result<JoinHandle<Result<(), CubeError>>, CubeError> {
// spawn here is required in case there's a panic in a job. If job panics worker process loop will survive it.
match job.job_type() {
JobType::WalPartitioning => {
if let RowKey::Table(TableId::WALs, wal_id) = job.row_reference() {
let chunk_store = self.chunk_store.clone();
let wal_id = *wal_id;
Ok(cube_ext::spawn(async move {
chunk_store.partition(wal_id).await
}))
} else {
Self::fail_job_row_key(job)
}
}
JobType::Repartition => {
if let RowKey::Table(TableId::Partitions, partition_id) = job.row_reference() {
let chunk_store = self.chunk_store.clone();
let partition_id = *partition_id;
Ok(cube_ext::spawn(async move {
chunk_store.repartition(partition_id).await
}))
} else {
Self::fail_job_row_key(job)
}
}
JobType::PartitionCompaction => {
if let RowKey::Table(TableId::Partitions, partition_id) = job.row_reference() {
let compaction_service = self.compaction_service.clone();
let partition_id = *partition_id;
Ok(cube_ext::spawn(async move {
compaction_service.compact(partition_id).await
}))
} else {
Self::fail_job_row_key(job)
}
}
JobType::MultiPartitionSplit => {
if let RowKey::Table(TableId::MultiPartitions, id) = job.row_reference() {
let compaction_service = self.compaction_service.clone();
let id = *id;
Ok(cube_ext::spawn(async move {
compaction_service.split_multi_partition(id).await
}))
} else {
Self::fail_job_row_key(job)
}
}
JobType::FinishMultiSplit => {
if let RowKey::Table(TableId::MultiPartitions, multi_part_id) = job.row_reference()
{
let meta_store = self.meta_store.clone();
let compaction_service = self.compaction_service.clone();
let multi_part_id = *multi_part_id;
Ok(cube_ext::spawn(async move {
for p in meta_store.find_unsplit_partitions(multi_part_id).await? {
compaction_service
.finish_multi_split(multi_part_id, p)
.await?
}
Ok(())
}))
} else {
Self::fail_job_row_key(job)
}
}
JobType::TableImport => {
if let RowKey::Table(TableId::Tables, table_id) = job.row_reference() {
let import_service = self.import_service.clone();
let table_id = *table_id;
Ok(cube_ext::spawn(async move {
import_service.import_table(table_id).await
}))
} else {
Self::fail_job_row_key(job)
}
}
JobType::TableImportCSV(location) => {
if let RowKey::Table(TableId::Tables, table_id) = job.row_reference() {
let table_id = *table_id;
let import_service = self.import_service.clone();
let location = location.to_string();
Ok(cube_ext::spawn(async move {
import_service
.clone()
.import_table_part(table_id, &location)
.await
}))
} else {
Self::fail_job_row_key(job)
}
}
}
}
fn fail_job_row_key(job: &Job) -> Result<JoinHandle<Result<(), CubeError>>, CubeError> {
Err(CubeError::internal(format!(
"Incorrect row key for {:?}: {:?}",
job,
job.row_reference()
)))
}
}
impl ClusterImpl {
pub fn new(
server_name: String,
server_addresses: Vec<String>,
injector: Weak<Injector>,
remote_fs: Arc<dyn RemoteFs>,
connect_timeout: Duration,
meta_store: Arc<dyn MetaStore>,
config_obj: Arc<dyn ConfigObj>,
query_executor: Arc<dyn QueryExecutor>,
meta_store_sender: Sender<MetaStoreEvent>,
cluster_transport: Arc<dyn ClusterTransport>,
) -> Arc<ClusterImpl> {
let (close_worker_socket_tx, close_worker_socket_rx) = watch::channel(false);
Arc::new_cyclic(|this| ClusterImpl {
this: this.clone(),
injector,
server_name,
server_addresses,
remote_fs,
connect_timeout,
meta_store,
cluster_transport,
job_notify: Arc::new(Notify::new()),
meta_store_sender,
#[cfg(not(target_os = "windows"))]
select_process_pool: RwLock::new(None),
config_obj,
query_executor,
stop_token: CancellationToken::new(),
close_worker_socket_tx,
close_worker_socket_rx: RwLock::new(close_worker_socket_rx),
})
}
pub fn is_select_worker(&self) -> bool {
!is_router(self.config_obj.as_ref())
}
pub async fn wait_for_worker_to_close(&self) {
let mut receiver = self.close_worker_socket_rx.read().await.clone();
loop {
if receiver.changed().await.is_err() {
return;
}
if *receiver.borrow() {
return;
}
}
}
pub async fn wait_processing_loops(&self) -> Result<(), CubeError> {
let mut futures = Vec::new();
#[cfg(not(target_os = "windows"))]
if self.config_obj.select_worker_pool_size() > 0 {
let mut pool = self.select_process_pool.write().await;
let arc = Arc::new(WorkerPool::new(
self.config_obj.select_worker_pool_size(),
Duration::from_secs(self.config_obj.query_timeout()),
));
*pool = Some(arc.clone());
futures.push(cube_ext::spawn(
async move { arc.wait_processing_loops().await },
));
}
for _ in 0..self.config_obj.job_runners_count() {
// TODO number of job event loops
let job_runner = JobRunner {
config_obj: self.config_obj.clone(),
meta_store: self.meta_store.clone(),
chunk_store: self.injector.upgrade().unwrap().get_service_typed().await,
compaction_service: self.injector.upgrade().unwrap().get_service_typed().await,
import_service: self.injector.upgrade().unwrap().get_service_typed().await,
server_name: self.server_name.clone(),
notify: self.job_notify.clone(),
stop_token: self.stop_token.clone(),
};
futures.push(cube_ext::spawn(async move {
job_runner.processing_loop().await;
}));
}
join_all(futures)
.await
.into_iter()
.collect::<Result<Vec<_>, _>>()?;
Ok(())
}
pub async fn stop_processing_loops(&self) -> Result<(), CubeError> {
self.stop_token.cancel();
#[cfg(not(target_os = "windows"))]
if let Some(pool) = self.select_process_pool.read().await.as_ref() {
pool.stop_workers().await?;
}
self.close_worker_socket_tx.send(true)?;
Ok(())
}
pub async fn send_to_worker(
&self,
worker_node: &str,
m: NetworkMessage,
) -> Result<NetworkMessage, CubeError> {
self.cluster_transport
.send_to_worker(worker_node.to_string(), m)
.await
}
pub async fn listen_on_worker_port(
cluster: Arc<ClusterImpl>,
on_socket_bound: oneshot::Sender<()>,
) -> Result<(), CubeError> {
let address = match cluster.config_obj.worker_bind_address() {
Some(a) => a,
None => {
let _ = on_socket_bound.send(());
return Ok(());
}
};
ClusterImpl::listen_on_port(
"Worker",
address,
cluster.clone(),
on_socket_bound,
async move |c, mut socket| {
let m = match NetworkMessage::receive(&mut socket).await {
Ok(m) => m,
Err(e) => {
error!("Network error: {}", e);
return;
}
};
if !m.is_streaming_request() {
let response = c.process_message_on_worker(m).await;
if let Err(e) = response.send(&mut socket).await {
error!("Network error: {}", e);
return;
}
} else {
let mut p = c.start_stream_on_worker(m).await;
loop {
let (response, finished) = p.next().await;
match response.maybe_send(&mut socket).await {
// All ok, continue streaming.
Ok(true) => {}
// Connection closed by client, stop streaming.
Ok(false) => {
break;
}
Err(e) => {
error!("Network error: {}", e);
return;
}
}
if finished {
break;
}
}
}
},
)
.await
}
pub async fn listen_on_metastore_port(
cluster: Arc<ClusterImpl>,
on_socket_bound: oneshot::Sender<()>,
) -> Result<(), CubeError> {
if let Some(address) = cluster.config_obj.metastore_bind_address() {
ClusterImpl::process_on_port(
"Meta store",
address,
cluster.clone(),
on_socket_bound,
async move |c, m| c.process_metastore_message(m).await,
)
.await?;
} else {
let _ = on_socket_bound.send(());
}
Ok(())
}
pub async fn listen_on_port<F: Future<Output = ()> + Send>(
name: &str,
address: &str,
cluster: Arc<ClusterImpl>,
on_socket_bound: oneshot::Sender<()>,
process_fn: impl Fn(Arc<ClusterImpl>, TcpStream) -> F + Send + Sync + Clone + 'static,
) -> Result<(), CubeError> {
let listener = TcpListener::bind(address.clone()).await?;
let _ = on_socket_bound.send(());
info!("{} port open on {}", name, address);
loop {