HADOOP-19256 Integrate PutIfNotExist functionality into S3A createFile() #7011
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.hadoop.fs.s3a.impl; | ||
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| import org.apache.hadoop.conf.Configuration; | ||
| import org.apache.hadoop.fs.FSDataOutputStream; | ||
| import org.apache.hadoop.fs.FSDataOutputStreamBuilder; | ||
| import org.apache.hadoop.fs.FileSystem; | ||
| import org.apache.hadoop.fs.Path; | ||
| import org.apache.hadoop.fs.s3a.performance.AbstractS3ACostTest; | ||
| import org.apache.hadoop.fs.s3a.RemoteFileChangedException; | ||
| import org.apache.hadoop.fs.s3a.S3ATestUtils; | ||
| import org.apache.hadoop.io.IOUtils; | ||
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| import org.assertj.core.api.Assertions; | ||
| import org.junit.Assert; | ||
| import org.junit.Test; | ||
| import software.amazon.awssdk.services.s3.model.S3Exception; | ||
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| import java.io.IOException; | ||
| import static org.apache.hadoop.fs.contract.ContractTestUtils.dataset; | ||
| import static org.apache.hadoop.fs.s3a.Constants.FAST_UPLOAD_BUFFER; | ||
| import static org.apache.hadoop.fs.s3a.Constants.FAST_UPLOAD_BUFFER_ARRAY; | ||
| import static org.apache.hadoop.fs.s3a.Constants.FS_S3A_CONDITIONAL_FILE_CREATE; | ||
| import static org.apache.hadoop.fs.s3a.Constants.MIN_MULTIPART_THRESHOLD; | ||
| import static org.apache.hadoop.fs.s3a.Constants.MULTIPART_MIN_SIZE; | ||
| import static org.apache.hadoop.fs.s3a.Constants.MULTIPART_SIZE; | ||
| import static org.apache.hadoop.fs.s3a.S3ATestUtils.skipIfNotEnabled; | ||
| import static org.apache.hadoop.fs.s3a.S3ATestUtils.removeBaseAndBucketOverrides; | ||
| import static org.apache.hadoop.fs.s3a.impl.InternalConstants.UPLOAD_PART_COUNT_LIMIT; | ||
| import static org.apache.hadoop.fs.s3a.scale.ITestS3AMultipartUploadSizeLimits.MPU_SIZE; | ||
| import static org.apache.hadoop.fs.s3a.scale.S3AScaleTestBase._1MB; | ||
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| public class ITestS3APutIfMatch extends AbstractS3ACostTest { | ||
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| private Configuration conf; | ||
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| @Override | ||
| public Configuration createConfiguration() { | ||
| Configuration conf = super.createConfiguration(); | ||
| S3ATestUtils.disableFilesystemCaching(conf); | ||
| removeBaseAndBucketOverrides(conf, | ||
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| MULTIPART_SIZE, | ||
| UPLOAD_PART_COUNT_LIMIT); | ||
| conf.setLong(MULTIPART_SIZE, MPU_SIZE); | ||
| conf.setLong(UPLOAD_PART_COUNT_LIMIT, 2); | ||
| conf.setLong(MIN_MULTIPART_THRESHOLD, MULTIPART_MIN_SIZE); | ||
| conf.setInt(MULTIPART_SIZE, MULTIPART_MIN_SIZE); | ||
| conf.set(FAST_UPLOAD_BUFFER, getBlockOutputBufferName()); | ||
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| return conf; | ||
| } | ||
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| @Override | ||
| public void setup() throws Exception { | ||
| super.setup(); | ||
| conf = createConfiguration(); | ||
| skipIfNotEnabled(conf, FS_S3A_CONDITIONAL_FILE_CREATE, | ||
| "Skipping IfNoneMatch tests"); | ||
| } | ||
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| protected String getBlockOutputBufferName() { | ||
| return FAST_UPLOAD_BUFFER_ARRAY; | ||
| } | ||
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| /** | ||
| * Create a file using the PutIfMatch feature from S3 | ||
| * @param fs filesystem | ||
| * @param path path to write | ||
| * @param data source dataset. Can be null | ||
| * @throws IOException on any problem | ||
| */ | ||
| private static void createFileWithIfNoneMatchFlag(FileSystem fs, | ||
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| Path path, | ||
| byte[] data, | ||
| String ifMatchTag) throws Exception { | ||
| FSDataOutputStreamBuilder builder = fs.createFile(path); | ||
| builder.must(FS_S3A_CONDITIONAL_FILE_CREATE, ifMatchTag); | ||
| FSDataOutputStream stream = builder.create().build(); | ||
| if (data != null && data.length > 0) { | ||
| stream.write(data); | ||
| } | ||
| stream.close(); | ||
| IOUtils.closeStream(stream); | ||
| } | ||
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| @Test | ||
| public void testPutIfAbsentConflict() throws IOException { | ||
| FileSystem fs = getFileSystem(); | ||
| Path testFile = methodPath(); | ||
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| fs.mkdirs(testFile.getParent()); | ||
| byte[] fileBytes = dataset(TEST_FILE_LEN, 0, 255); | ||
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| try { | ||
| createFileWithIfNoneMatchFlag(fs, testFile, fileBytes, "*"); | ||
| createFileWithIfNoneMatchFlag(fs, testFile, fileBytes, "*"); | ||
| } catch (Exception e) { | ||
| Assert.assertEquals(RemoteFileChangedException.class, e.getClass()); | ||
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| S3Exception s3Exception = (S3Exception) e.getCause(); | ||
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| Assertions.assertThat(s3Exception.statusCode()).isEqualTo(412); | ||
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| } | ||
| } | ||
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| @Test | ||
| public void testPutIfAbsentLargeFileConflict() throws IOException { | ||
| FileSystem fs = getFileSystem(); | ||
| Path testFile = methodPath(); | ||
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| // enough bytes for Multipart Upload | ||
| byte[] fileBytes = dataset(6 * _1MB, 'a', 'z' - 'a'); | ||
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Contributor
There was a problem hiding this comment. there are ways to do this with small files, this matters because a 6MB file is large enough that it'd have to become a scale test. Yes, it is a scale test when people are testing across the planet. Do not worry about this right now, but be aware before merging into trunk the large file test will have to be moved to a subset of S3AScaleTestBase, and this test replaced with something using a write to a magic path –or even better, we add another new create file option to force multipart uploads always. Designing for that makes me think that a followup to this should move to an enumset of CreateFile flags |
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| try { | ||
| createFileWithIfNoneMatchFlag(fs, testFile, fileBytes, "*"); | ||
| createFileWithIfNoneMatchFlag(fs, testFile, fileBytes, "*"); | ||
| } catch (Exception e) { | ||
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| Assert.assertEquals(RemoteFileChangedException.class, e.getClass()); | ||
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| // Error gets caught here: | ||
| S3Exception s3Exception = (S3Exception) e.getCause(); | ||
| Assertions.assertThat(s3Exception.statusCode()).isEqualTo(412); | ||
| } | ||
| } | ||
| } | ||
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