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ASF GitHub Bot logged work on BEAM-4290: ---------------------------------------- Author: ASF GitHub Bot Created on: 11/Jun/18 21:04 Start Date: 11/Jun/18 21:04 Worklog Time Spent: 10m Work Description: angoenka commented on a change in pull request #5591: [BEAM-4290] Beam File System based ArtifactStagingService URL: https://github.com/apache/beam/pull/5591#discussion_r194526541 ########## File path: runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/artifact/BeamFileSystemArtifactStagingService.java ########## @@ -0,0 +1,292 @@ +/* + * 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.artifact; + +import com.fasterxml.jackson.core.JsonProcessingException; +import com.fasterxml.jackson.databind.ObjectMapper; +import com.google.common.hash.Hashing; +import com.google.protobuf.util.JsonFormat; +import io.grpc.stub.StreamObserver; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.io.Serializable; +import java.nio.channels.WritableByteChannel; +import java.nio.charset.Charset; +import java.nio.charset.StandardCharsets; +import java.util.Collections; +import org.apache.beam.model.jobmanagement.v1.ArtifactApi.ArtifactMetadata; +import org.apache.beam.model.jobmanagement.v1.ArtifactApi.CommitManifestRequest; +import org.apache.beam.model.jobmanagement.v1.ArtifactApi.CommitManifestResponse; +import org.apache.beam.model.jobmanagement.v1.ArtifactApi.ProxyManifest; +import org.apache.beam.model.jobmanagement.v1.ArtifactApi.ProxyManifest.Location; +import org.apache.beam.model.jobmanagement.v1.ArtifactApi.PutArtifactMetadata; +import org.apache.beam.model.jobmanagement.v1.ArtifactApi.PutArtifactRequest; +import org.apache.beam.model.jobmanagement.v1.ArtifactApi.PutArtifactResponse; +import org.apache.beam.model.jobmanagement.v1.ArtifactStagingServiceGrpc.ArtifactStagingServiceImplBase; +import org.apache.beam.runners.fnexecution.FnService; +import org.apache.beam.sdk.io.FileSystems; +import org.apache.beam.sdk.io.fs.MoveOptions.StandardMoveOptions; +import org.apache.beam.sdk.io.fs.ResolveOptions.StandardResolveOptions; +import org.apache.beam.sdk.io.fs.ResourceId; +import org.apache.beam.sdk.util.MimeTypes; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * {@link ArtifactStagingServiceImplBase} based on beam file system. + */ +public class BeamFileSystemArtifactStagingService extends ArtifactStagingServiceImplBase implements + FnService { + + private static final Logger LOG = + LoggerFactory.getLogger(BeamFileSystemArtifactStagingService.class); + private static final ObjectMapper MAPPER = new ObjectMapper(); + // Use UTF8 for all text encoding. + private static final Charset CHARSET = StandardCharsets.UTF_8; + public static final String MANIFEST = "MANIFEST"; + + @Override + public StreamObserver<PutArtifactRequest> putArtifact( + StreamObserver<PutArtifactResponse> responseObserver) { + return new PutArtifactStreamObserver(responseObserver); + } + + @Override + public void commitManifest( + CommitManifestRequest request, StreamObserver<CommitManifestResponse> responseObserver) { + try { + ResourceId manifestResourceId = getManifestFileResourceId(request.getStagingSessionToken()); + ResourceId artifactDirResourceId = getArtifactDirResourceId(request.getStagingSessionToken()); + ProxyManifest.Builder proxyManifestBuilder = ProxyManifest.newBuilder() + .setManifest(request.getManifest()); + for (ArtifactMetadata artifactMetadata : request.getManifest().getArtifactList()) { + proxyManifestBuilder.addLocation(Location.newBuilder() + .setName(artifactMetadata.getName()) + .setUri(artifactDirResourceId + .resolve(encodedFileName(artifactMetadata), StandardResolveOptions.RESOLVE_FILE) + .toString()).build()); + } + try (WritableByteChannel manifestWritableByteChannel = FileSystems + .create(manifestResourceId, MimeTypes.TEXT)) { + manifestWritableByteChannel + .write(CHARSET.encode(JsonFormat.printer().print(proxyManifestBuilder.build()))); + } + // TODO: Validate integrity of staged files. + responseObserver.onNext(CommitManifestResponse.newBuilder() + .setStagingToken(manifestResourceId.toString()) + .build()); + responseObserver.onCompleted(); + } catch (IOException e) { + // TODO: Cleanup all the artifacts. + LOG.error("Unable to commit manifest.", e); + responseObserver.onError(e); + } + } + + @Override + public void close() throws Exception { + // Nothing to close here. + } + + /** + * Generate a stagingSessionToken compatible with {@link BeamFileSystemArtifactStagingService}. + * + * @param sessionId Unique sessionId for artifact staging. + * @param basePath Base path to upload artifacts. + * @return Encoded stagingSessionToken. + */ + public static String generateStagingSessionToken(String sessionId, String basePath) + throws Exception { + StagingSessionToken stagingSessionToken = new StagingSessionToken(); + stagingSessionToken.setSessionId(sessionId); + stagingSessionToken.setBasePath(basePath); + return encodeStagingSessionToken(stagingSessionToken); + } + + private String encodedFileName(ArtifactMetadata artifactMetadata) { + return "artifact_" + Hashing.sha256().hashString(artifactMetadata.getName(), CHARSET) + .toString(); + } + + private StagingSessionToken decodeStagingSessionToken(String stagingSessionToken) + throws IOException { + try { + return MAPPER.readValue(stagingSessionToken, StagingSessionToken.class); + } catch (IOException e) { + try { + LOG.error( + "Unable to deserialize staging token {}. Expected format {}. Error {}", + stagingSessionToken, MAPPER.writeValueAsString(new StagingSessionToken()), + e.getMessage()); + } catch (JsonProcessingException e1) { Review comment: Removed the catch blocks. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 110829) Time Spent: 13h 10m (was: 13h) > ArtifactStagingService that stages to a distributed filesystem > -------------------------------------------------------------- > > Key: BEAM-4290 > URL: https://issues.apache.org/jira/browse/BEAM-4290 > Project: Beam > Issue Type: Sub-task > Components: runner-core > Reporter: Eugene Kirpichov > Assignee: Ankur Goenka > Priority: Major > Time Spent: 13h 10m > Remaining Estimate: 0h > > Using the job's staging directory from PipelineOptions. > Physical layout on the distributed filesystem is TBD but it should allow for > arbitrary filenames and ideally for eventually avoiding uploading artifacts > that are already there. > Handling credentials is TBD. -- This message was sent by Atlassian JIRA (v7.6.3#76005)