ajfabbri commented on a change in pull request #951: HADOOP-15183. S3Guard store becomes inconsistent after partial failure of rename URL: https://github.com/apache/hadoop/pull/951#discussion_r293227321
########## File path: hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/impl/ITestPartialRenamesDeletes.java ########## @@ -0,0 +1,871 @@ +/* + * 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.hadoop.fs.s3a.impl; + +import java.io.IOException; +import java.nio.file.AccessDeniedException; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collection; +import java.util.List; +import java.util.Set; +import java.util.TreeSet; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.TimeUnit; +import java.util.stream.Collectors; +import java.util.stream.Stream; + +import com.amazonaws.services.s3.model.MultiObjectDeleteException; +import com.google.common.base.Charsets; +import com.google.common.util.concurrent.ListeningExecutorService; +import org.assertj.core.api.Assertions; +import org.junit.Test; +import org.junit.runner.RunWith; +import org.junit.runners.Parameterized; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.FileStatus; +import org.apache.hadoop.fs.FileSystem; +import org.apache.hadoop.fs.Path; +import org.apache.hadoop.fs.contract.ContractTestUtils; +import org.apache.hadoop.fs.s3a.AbstractS3ATestBase; +import org.apache.hadoop.fs.s3a.S3AFileSystem; +import org.apache.hadoop.fs.s3a.S3AUtils; +import org.apache.hadoop.fs.s3a.s3guard.MetadataStore; +import org.apache.hadoop.fs.s3a.s3guard.PathMetadataDynamoDBTranslation; +import org.apache.hadoop.util.BlockingThreadPoolExecutorService; +import org.apache.hadoop.util.DurationInfo; + +import static org.apache.hadoop.fs.contract.ContractTestUtils.*; +import static org.apache.hadoop.fs.s3a.Constants.*; +import static org.apache.hadoop.fs.s3a.S3ATestUtils.MetricDiff; +import static org.apache.hadoop.fs.s3a.S3ATestUtils.*; +import static org.apache.hadoop.fs.s3a.S3AUtils.applyLocatedFiles; +import static org.apache.hadoop.fs.s3a.Statistic.FILES_DELETE_REJECTED; +import static org.apache.hadoop.fs.s3a.Statistic.OBJECT_DELETE_REQUESTS; +import static org.apache.hadoop.fs.s3a.auth.RoleModel.Effects; +import static org.apache.hadoop.fs.s3a.auth.RoleModel.Statement; +import static org.apache.hadoop.fs.s3a.auth.RoleModel.directory; +import static org.apache.hadoop.fs.s3a.auth.RoleModel.statement; +import static org.apache.hadoop.fs.s3a.auth.RolePolicies.*; +import static org.apache.hadoop.fs.s3a.auth.RoleTestUtils.bindRolePolicyStatements; +import static org.apache.hadoop.fs.s3a.auth.RoleTestUtils.forbidden; +import static org.apache.hadoop.fs.s3a.auth.RoleTestUtils.newAssumedRoleConfig; +import static org.apache.hadoop.fs.s3a.impl.CallableSupplier.submit; +import static org.apache.hadoop.fs.s3a.impl.CallableSupplier.waitForCompletion; +import static org.apache.hadoop.fs.s3a.impl.MultiObjectDeleteSupport.extractUndeletedPaths; +import static org.apache.hadoop.fs.s3a.impl.MultiObjectDeleteSupport.removeUndeletedPaths; +import static org.apache.hadoop.fs.s3a.test.ExtraAssertions.assertFileCount; +import static org.apache.hadoop.fs.s3a.test.ExtraAssertions.extractCause; +import static org.apache.hadoop.test.LambdaTestUtils.eval; + +/** + * Test partial failures of delete and rename operations, especially + * that the S3Guard tables are consistent with the state of + * the filesystem. + * + * All these test have a unique path for each run, with a roleFS having + * full RW access to part of it, and R/O access to a restricted subdirectory + * + * <ol> + * <li> + * The tests are parameterized to single/multi delete, which control which + * of the two delete mechanisms are used. + * </li> + * <li> + * In multi delete, in a scale test run, a significantly larger set of files + * is created and then deleted. + * </li> + * <li> + * This isn't done in the single delete as it is much slower and it is not + * the situation we are trying to create. + * </li> + * </ol> + * + * This test manages to create lots of load on the s3guard prune command + * when that is tested in a separate test suite; + * too many tombstone files for the test to complete. + * An attempt is made in {@link #deleteTestDirInTeardown()} to prune these test + * files. + */ +@SuppressWarnings("ThrowableNotThrown") Review comment:  ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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