[
https://issues.apache.org/jira/browse/BEAM-6094?focusedWorklogId=172251&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-172251
]
ASF GitHub Bot logged work on BEAM-6094:
----------------------------------------
Author: ASF GitHub Bot
Created on: 05/Dec/18 11:48
Start Date: 05/Dec/18 11:48
Worklog Time Spent: 10m
Work Description: robertwb commented on a change in pull request #7078:
[BEAM-6094] Implement external environment for portable BeamPython.
URL: https://github.com/apache/beam/pull/7078#discussion_r239031615
##########
File path:
runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/environment/ExternalEnvironmentFactory.java
##########
@@ -0,0 +1,166 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.runners.fnexecution.environment;
+
+import com.google.common.base.Preconditions;
+import java.time.Duration;
+import java.util.concurrent.TimeoutException;
+import org.apache.beam.model.fnexecution.v1.BeamFnApi;
+import org.apache.beam.model.fnexecution.v1.BeamFnExternalWorkerGrpc;
+import org.apache.beam.model.pipeline.v1.RunnerApi;
+import org.apache.beam.model.pipeline.v1.RunnerApi.Environment;
+import org.apache.beam.runners.core.construction.BeamUrns;
+import org.apache.beam.runners.fnexecution.GrpcFnServer;
+import org.apache.beam.runners.fnexecution.artifact.ArtifactRetrievalService;
+import org.apache.beam.runners.fnexecution.control.ControlClientPool;
+import
org.apache.beam.runners.fnexecution.control.FnApiControlClientPoolService;
+import org.apache.beam.runners.fnexecution.control.InstructionRequestHandler;
+import org.apache.beam.runners.fnexecution.logging.GrpcLoggingService;
+import
org.apache.beam.runners.fnexecution.provisioning.StaticGrpcProvisionService;
+import org.apache.beam.sdk.fn.IdGenerator;
+import org.apache.beam.sdk.fn.channel.ManagedChannelFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * An {@link EnvironmentFactory} which forks processes based on the given URL
in the Environment.
+ * The returned {@link ProcessEnvironment} has to make sure to stop the
processes.
+ */
+public class ExternalEnvironmentFactory implements EnvironmentFactory {
+
+ private static final Logger LOG =
LoggerFactory.getLogger(ExternalEnvironmentFactory.class);
+
+ public static ExternalEnvironmentFactory create(
+ GrpcFnServer<FnApiControlClientPoolService> controlServiceServer,
+ GrpcFnServer<GrpcLoggingService> loggingServiceServer,
+ GrpcFnServer<ArtifactRetrievalService> retrievalServiceServer,
+ GrpcFnServer<StaticGrpcProvisionService> provisioningServiceServer,
+ ControlClientPool.Source clientSource,
+ IdGenerator idGenerator) {
+ return new ExternalEnvironmentFactory(
+ controlServiceServer,
+ loggingServiceServer,
+ retrievalServiceServer,
+ provisioningServiceServer,
+ idGenerator,
+ clientSource);
+ }
+
+ private final GrpcFnServer<FnApiControlClientPoolService>
controlServiceServer;
+ private final GrpcFnServer<GrpcLoggingService> loggingServiceServer;
+ private final GrpcFnServer<ArtifactRetrievalService> retrievalServiceServer;
+ private final GrpcFnServer<StaticGrpcProvisionService>
provisioningServiceServer;
+ private final IdGenerator idGenerator;
+ private final ControlClientPool.Source clientSource;
+
+ private ExternalEnvironmentFactory(
+ GrpcFnServer<FnApiControlClientPoolService> controlServiceServer,
+ GrpcFnServer<GrpcLoggingService> loggingServiceServer,
+ GrpcFnServer<ArtifactRetrievalService> retrievalServiceServer,
+ GrpcFnServer<StaticGrpcProvisionService> provisioningServiceServer,
+ IdGenerator idGenerator,
+ ControlClientPool.Source clientSource) {
+ this.controlServiceServer = controlServiceServer;
+ this.loggingServiceServer = loggingServiceServer;
+ this.retrievalServiceServer = retrievalServiceServer;
+ this.provisioningServiceServer = provisioningServiceServer;
+ this.idGenerator = idGenerator;
+ this.clientSource = clientSource;
+ }
+
+ /** Creates a new, active {@link RemoteEnvironment} backed by a forked
process. */
+ @Override
+ public RemoteEnvironment createEnvironment(Environment environment) throws
Exception {
+ Preconditions.checkState(
+ environment
+ .getUrn()
+
.equals(BeamUrns.getUrn(RunnerApi.StandardEnvironments.Environments.EXTERNAL)),
+ "The passed environment does not contain an ExternalPayload.");
+ final RunnerApi.ExternalPayload externalPayload =
+ RunnerApi.ExternalPayload.parseFrom(environment.getPayload());
+ final String workerId = idGenerator.getId();
+
+ BeamFnApi.StartWorkerRequest startWorkRequest =
+ BeamFnApi.StartWorkerRequest.newBuilder()
+ .setWorkerId(workerId)
+ .setControlEndpoint(controlServiceServer.getApiServiceDescriptor())
+ .setLoggingEndpoint(loggingServiceServer.getApiServiceDescriptor())
+
.setArtifactEndpoint(retrievalServiceServer.getApiServiceDescriptor())
+
.setProvisionEndpoint(provisioningServiceServer.getApiServiceDescriptor())
+ .putAllParams(externalPayload.getParamsMap())
+ .build();
+
+ LOG.debug("Requesting worker ID {}", workerId);
+ BeamFnApi.StartWorkerResponse startWorkResponse =
+ BeamFnExternalWorkerGrpc.newBlockingStub(
+
ManagedChannelFactory.createDefault().forDescriptor(externalPayload.getEndpoint()))
+ .startWorker(startWorkRequest);
+ if (!startWorkResponse.getError().isEmpty()) {
+ throw new RuntimeException(startWorkResponse.getError());
+ }
+
+ // Wait on a client from the gRPC server.
+ InstructionRequestHandler instructionHandler = null;
+ while (instructionHandler == null) {
+ try {
+ instructionHandler = clientSource.take(workerId,
Duration.ofMinutes(2));
+ } catch (TimeoutException timeoutEx) {
+ LOG.info(
+ "Still waiting for startup of environment from {} for worker id
{}",
+ externalPayload.getEndpoint().getUrl(),
+ workerId);
+ } catch (InterruptedException interruptEx) {
+ Thread.currentThread().interrupt();
+ throw new RuntimeException(interruptEx);
+ }
+ }
+ final InstructionRequestHandler finalInstructionHandler =
instructionHandler;
+
+ return new RemoteEnvironment() {
+ @Override
+ public Environment getEnvironment() {
+ return environment;
+ }
+
+ @Override
+ public InstructionRequestHandler getInstructionRequestHandler() {
+ return finalInstructionHandler;
+ }
+ };
+ }
+
+ /** Provider of ProcessEnvironmentFactory. */
Review comment:
Oops. If it weren't for satisfying linkers, obvious comments like these seem
to have negative value... Fixed.
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Issue Time Tracking
-------------------
Worklog Id: (was: 172251)
> Implement External environment for Portable Beam
> ------------------------------------------------
>
> Key: BEAM-6094
> URL: https://issues.apache.org/jira/browse/BEAM-6094
> Project: Beam
> Issue Type: Improvement
> Components: beam-model
> Reporter: Robert Bradshaw
> Assignee: Robert Bradshaw
> Priority: Major
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
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