org.apache.beam.runners.fnexecution.status

Class BeamWorkerStatusGrpcService

java.lang.Object

org.apache.beam.model.fnexecution.v1.BeamFnWorkerStatusGrpc.BeamFnWorkerStatusImplBase

org.apache.beam.runners.fnexecution.status.BeamWorkerStatusGrpcService

All Implemented Interfaces:

java.lang.AutoCloseable, FnService, org.apache.beam.vendor.grpc.v1p21p0.io.grpc.BindableService

public class BeamWorkerStatusGrpcService
extends org.apache.beam.model.fnexecution.v1.BeamFnWorkerStatusGrpc.BeamFnWorkerStatusImplBase
implements FnService

A Fn Status service which can collect run-time status information from SDK harnesses for debugging purpose.

Method Summary

Modifier and Type	Method and Description
void	close() .
static BeamWorkerStatusGrpcService	create(org.apache.beam.model.pipeline.v1.Endpoints.ApiServiceDescriptor apiServiceDescriptor, HeaderAccessor headerAccessor) Create new instance of BeamWorkerStatusGrpcService.
java.util.Map<java.lang.String,java.lang.String>	getAllWorkerStatuses(long timeout, java.util.concurrent.TimeUnit timeUnit) Get all the statuses from all connected SDK harnesses within specified timeout.
java.lang.String	getSingleWorkerStatus(java.lang.String workerId, long timeout, java.util.concurrent.TimeUnit timeUnit) Get the latest SDK worker status from the client's corresponding SDK harness.
org.apache.beam.vendor.grpc.v1p21p0.io.grpc.stub.StreamObserver<org.apache.beam.model.fnexecution.v1.BeamFnApi.WorkerStatusResponse>	workerStatus(org.apache.beam.vendor.grpc.v1p21p0.io.grpc.stub.StreamObserver<org.apache.beam.model.fnexecution.v1.BeamFnApi.WorkerStatusRequest> requestObserver)

Methods inherited from class org.apache.beam.model.fnexecution.v1.BeamFnWorkerStatusGrpc.BeamFnWorkerStatusImplBase

bindService

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.beam.vendor.grpc.v1p21p0.io.grpc.BindableService

bindService

Method Detail

create

public static BeamWorkerStatusGrpcService create(org.apache.beam.model.pipeline.v1.Endpoints.ApiServiceDescriptor apiServiceDescriptor,
                                                 HeaderAccessor headerAccessor)

Create new instance of BeamWorkerStatusGrpcService.

Parameters:

apiServiceDescriptor - describes the configuration for the endpoint the server will expose.

headerAccessor - headerAccessor gRPC header accessor used to obtain SDK harness worker id.

Returns:

BeamWorkerStatusGrpcService

close

public void close()
           throws java.lang.Exception

Description copied from interface: FnService

.

There should be no more calls to any service method by the time a call to FnService.close() begins. Specifically, this means that a Server that this service is bound to should have completed a call to the Server.shutdown() method, and all future incoming calls will be rejected.

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface FnService

Throws:

java.lang.Exception

workerStatus

public org.apache.beam.vendor.grpc.v1p21p0.io.grpc.stub.StreamObserver<org.apache.beam.model.fnexecution.v1.BeamFnApi.WorkerStatusResponse> workerStatus(org.apache.beam.vendor.grpc.v1p21p0.io.grpc.stub.StreamObserver<org.apache.beam.model.fnexecution.v1.BeamFnApi.WorkerStatusRequest> requestObserver)

Overrides:

workerStatus in class org.apache.beam.model.fnexecution.v1.BeamFnWorkerStatusGrpc.BeamFnWorkerStatusImplBase

getSingleWorkerStatus

public java.lang.String getSingleWorkerStatus(java.lang.String workerId,
                                              long timeout,
                                              java.util.concurrent.TimeUnit timeUnit)

Get the latest SDK worker status from the client's corresponding SDK harness.

Parameters:

workerId - worker id of the SDK harness.

Returns:

CompletableFuture of WorkerStatusResponse from SDK harness.

getAllWorkerStatuses

public java.util.Map<java.lang.String,java.lang.String> getAllWorkerStatuses(long timeout,
                                                                             java.util.concurrent.TimeUnit timeUnit)

Get all the statuses from all connected SDK harnesses within specified timeout. Any errors getting status from the SDK harnesses will be returned in the map.

Parameters:

timeout - max time waiting for the response from each SDK harness.

timeUnit - timeout time unit.

Returns:

All the statuses in a map keyed by the SDK harness id.