pub fn serve(config: Config) -> Result<(Server, LocalClient), anyhow::Error> {
    assert!(config.workers > 0);

    let server_metrics = ServerMetrics::register_with(&config.metrics_registry);
    let dataflow_source_metrics = SourceBaseMetrics::register_with(&config.metrics_registry);
    let dataflow_sink_metrics = SinkBaseMetrics::register_with(&config.metrics_registry);

    // Construct endpoints for each thread that will receive the coordinator's
    // sequenced command stream and send the responses to the coordinator.
    //
    // TODO(benesch): package up this idiom of handing out ownership of N items
    // to the N timely threads that will be spawned. The Mutex<Vec<Option<T>>>
    // is hard to read through.
    let (response_txs, response_rxs): (Vec<_>, Vec<_>) = (0..config.workers)
        .map(|_| mpsc::unbounded_channel())
        .unzip();
    let (command_txs, command_rxs): (Vec<_>, Vec<_>) = (0..config.workers)
        .map(|_| crossbeam_channel::unbounded())
        .unzip();
    // A mutex around a vector of optional (take-able) pairs of (tx, rx) for worker/client communication.
    let channels: Mutex<Vec<_>> = Mutex::new(
        response_txs
            .into_iter()
            .zip(command_rxs)
            .map(Some)
            .collect(),
    );

    let tokio_executor = tokio::runtime::Handle::current();
    let now = config.now;
    let metrics = Metrics::register_with(&config.metrics_registry);
    let trace_metrics = TraceMetrics::register_with(&config.metrics_registry);
    let worker_guards = timely::execute::execute(config.timely_config, move |timely_worker| {
        let _tokio_guard = tokio_executor.enter();
        let (response_tx, command_rx) = channels.lock().unwrap()
            [timely_worker.index() % config.workers]
            .take()
            .unwrap();
        let worker_idx = timely_worker.index();
        let metrics = metrics.clone();
        let trace_metrics = trace_metrics.clone();
        let dataflow_source_metrics = dataflow_source_metrics.clone();
        let dataflow_sink_metrics = dataflow_sink_metrics.clone();
        Worker {
            timely_worker,
            render_state: RenderState {
                traces: TraceManager::new(trace_metrics, worker_idx),
                local_inputs: HashMap::new(),
                ts_source_mapping: HashMap::new(),
                ts_histories: HashMap::default(),
                dataflow_tokens: HashMap::new(),
                sink_write_frontiers: HashMap::new(),
                metrics,
                persist: None,
                tail_response_buffer: std::rc::Rc::new(std::cell::RefCell::new(Vec::new())),
            },
            materialized_logger: None,
            command_rx,
            pending_peeks: Vec::new(),
            response_tx,
            reported_frontiers: HashMap::new(),
            reported_bindings_frontiers: HashMap::new(),
            last_bindings_feedback: Instant::now(),
            metrics: server_metrics.for_worker_id(worker_idx),
            now: now.clone(),
            dataflow_source_metrics,
            dataflow_sink_metrics,
        }
        .run()
    })
    .map_err(|e| anyhow!("{}", e))?;
    let client = LocalClient::new(
        response_rxs,
        command_txs,
        worker_guards
            .guards()
            .iter()
            .map(|g| g.thread().clone())
            .collect(),
    );
    let server = Server {
        _worker_guards: worker_guards,
    };
    Ok((server, client))
}
/// Initiates a timely dataflow computation, processing materialized commands.
Initiates a timely dataflow computation, processing materialized commands.
Initiates a timely dataflow computation processing materialized commands .
pub fn serve(config: Config) -> Result<(Server, LocalClient), anyhow::Error> {
    assert!(config.workers > 0);
    let server_metrics = ServerMetrics::register_with(&config.metrics_registry);
    let dataflow_source_metrics = SourceBaseMetrics::register_with(&config.metrics_registry);
    let dataflow_sink_metrics = SinkBaseMetrics::register_with(&config.metrics_registry);
    // Construct endpoints for each thread that will receive the coordinator's
    // sequenced command stream and send the responses to the coordinator.
    //
    // TODO(benesch): package up this idiom of handing out ownership of N items
    // to the N timely threads that will be spawned. The Mutex<Vec<Option<T>>>
    // is hard to read through.
    let (response_txs, response_rxs): (Vec<_>, Vec<_>) = (0..config.workers)
        .map(|_| mpsc::unbounded_channel())
        .unzip();
    let (command_txs, command_rxs): (Vec<_>, Vec<_>) = (0..config.workers)
        .map(|_| crossbeam_channel::unbounded())
        .unzip();
    // A mutex around a vector of optional (take-able) pairs of (tx, rx) for worker/client communication.
    let channels: Mutex<Vec<_>> = Mutex::new(
        response_txs
            .into_iter()
            .zip(command_rxs)
            .map(Some)
            .collect(),
    );
    let tokio_executor = tokio::runtime::Handle::current();
    let now = config.now;
    let metrics = Metrics::register_with(&config.metrics_registry);
    let trace_metrics = TraceMetrics::register_with(&config.metrics_registry);
    let worker_guards = timely::execute::execute(config.timely_config, move |timely_worker| {
        let _tokio_guard = tokio_executor.enter();
        let (response_tx, command_rx) = channels.lock().unwrap()
            [timely_worker.index() % config.workers]
            .take()
            .unwrap();
        let worker_idx = timely_worker.index();
        let metrics = metrics.clone();
        let trace_metrics = trace_metrics.clone();
        let dataflow_source_metrics = dataflow_source_metrics.clone();
        let dataflow_sink_metrics = dataflow_sink_metrics.clone();
        Worker {
            timely_worker,
            render_state: RenderState {
                traces: TraceManager::new(trace_metrics, worker_idx),
                local_inputs: HashMap::new(),
                ts_source_mapping: HashMap::new(),
                ts_histories: HashMap::default(),
                dataflow_tokens: HashMap::new(),
                sink_write_frontiers: HashMap::new(),
                metrics,
                persist: None,
                tail_response_buffer: std::rc::Rc::new(std::cell::RefCell::new(Vec::new())),
            },
            materialized_logger: None,
            command_rx,
            pending_peeks: Vec::new(),
            response_tx,
            reported_frontiers: HashMap::new(),
            reported_bindings_frontiers: HashMap::new(),
            last_bindings_feedback: Instant::now(),
            metrics: server_metrics.for_worker_id(worker_idx),
            now: now.clone(),
            dataflow_source_metrics,
            dataflow_sink_metrics,
        }
        .run()
    })
    .map_err(|e| anyhow!("{}", e))?;
    let client = LocalClient::new(
        response_rxs,
        command_txs,
        worker_guards
            .guards()
            .iter()
            .map(|g| g.thread().clone())
            .collect(),
    );
    let server = Server {
        _worker_guards: worker_guards,
    };
    Ok((server, client))
}
pub fn serve ( config : Config ) -> Result < ( Server , LocalClient ) , anyhow :: Error > { assert ! ( config workers 0 ) ; let server_metrics = ServerMetrics :: register_with ( & config . metrics_registry ) ; let dataflow_source_metrics = SourceBaseMetrics :: register_with ( & config . metrics_registry ) ; let dataflow_sink_metrics = SinkBaseMetrics :: register_with ( & config . metrics_registry ) ; // Construct endpoints for each thread that will receive the coordinator's // sequenced command stream and send the responses to the coordinator. // // TODO(benesch): package up this idiom of handing out ownership of N items // to the N timely threads that will be spawned. The Mutex<Vec<Option<T>>> // is hard to read through. let ( response_txs , response_rxs ) : ( Vec < _ > , Vec < _ > ) = ( 0 .. config . workers ) . map ( | _ | mpsc :: unbounded_channel ( ) ) . unzip ( ) ; let ( command_txs , command_rxs ) : ( Vec < _ > , Vec < _ > ) = ( 0 .. config . workers ) . map ( | _ | crossbeam_channel :: unbounded ( ) ) . unzip ( ) ; // A mutex around a vector of optional (take-able) pairs of (tx, rx) for worker/client communication. let channels : Mutex < Vec < _ > > = Mutex :: new ( response_txs . into_iter ( ) . zip ( command_rxs ) . map ( Some ) . collect ( ) , ) ; let tokio_executor = tokio :: runtime :: Handle :: current ( ) ; let now = config . now ; let metrics = Metrics :: register_with ( & config . metrics_registry ) ; let trace_metrics = TraceMetrics :: register_with ( & config . metrics_registry ) ; let worker_guards = timely :: execute :: execute ( config . timely_config , move | timely_worker | { let _tokio_guard = tokio_executor . enter ( ) ; let ( response_tx , command_rx ) = channels . lock ( ) . unwrap ( ) [ timely_worker . index ( ) % config . workers ] . take ( ) . unwrap ( ) ; let worker_idx = timely_worker . index ( ) ; let metrics = metrics . clone ( ) ; let trace_metrics = trace_metrics . clone ( ) ; let dataflow_source_metrics = dataflow_source_metrics . clone ( ) ; let dataflow_sink_metrics = dataflow_sink_metrics . clone ( ) ; Worker { timely_worker , render_state : RenderState { traces : TraceManager :: new ( trace_metrics , worker_idx ) , local_inputs : HashMap :: new ( ) , ts_source_mapping : HashMap :: new ( ) , ts_histories : HashMap :: default ( ) , dataflow_tokens : HashMap :: new ( ) , sink_write_frontiers : HashMap :: new ( ) , metrics , persist : None , tail_response_buffer : std :: rc :: Rc :: new ( std :: cell :: RefCell :: new ( Vec :: new ( ) ) ) , } , materialized_logger : None , command_rx , pending_peeks : Vec :: new ( ) , response_tx , reported_frontiers : HashMap :: new ( ) , reported_bindings_frontiers : HashMap :: new ( ) , last_bindings_feedback : Instant :: now ( ) , metrics : server_metrics . for_worker_id ( worker_idx ) , now : now . clone ( ) , dataflow_source_metrics , dataflow_sink_metrics , } . run ( ) } ) . map_err ( | e | anyhow ! ( " " e ) ) ? ; let client = LocalClient :: new ( response_rxs , command_txs , worker_guards . guards ( ) . iter ( ) . map ( | g | g . thread ( ) . clone ( ) ) . collect ( ) , ) ; let server = Server { _worker_guards : worker_guards , } ; Ok ( ( server , client ) ) }
Initiates a timely dataflow computation, processing materialized commands.
Initiates a timely dataflow computation processing materialized commands .
config
Config
config
Config