| /* |
| * 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.scale; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.contract.ContractTestUtils; |
| import org.apache.hadoop.fs.s3a.S3AFileSystem; |
| |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.ExecutorCompletionService; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| |
| /** |
| * Test some scalable operations related to file renaming and deletion. |
| */ |
| public class ITestS3ADeleteManyFiles extends S3AScaleTestBase { |
| private static final Logger LOG = |
| LoggerFactory.getLogger(ITestS3ADeleteManyFiles.class); |
| |
| /** |
| * CAUTION: If this test starts failing, please make sure that the |
| * {@link org.apache.hadoop.fs.s3a.Constants#MAX_THREADS} configuration is not |
| * set too low. Alternatively, consider reducing the |
| * <code>scale.test.operation.count</code> parameter in |
| * <code>getOperationCount()</code>. |
| * |
| * @see #getOperationCount() |
| */ |
| @Test |
| public void testBulkRenameAndDelete() throws Throwable { |
| final Path scaleTestDir = path("testBulkRenameAndDelete"); |
| final Path srcDir = new Path(scaleTestDir, "src"); |
| final Path finalDir = new Path(scaleTestDir, "final"); |
| final long count = getOperationCount(); |
| final S3AFileSystem fs = getFileSystem(); |
| ContractTestUtils.rm(fs, scaleTestDir, true, false); |
| fs.mkdirs(srcDir); |
| fs.mkdirs(finalDir); |
| |
| int testBufferSize = fs.getConf() |
| .getInt(ContractTestUtils.IO_CHUNK_BUFFER_SIZE, |
| ContractTestUtils.DEFAULT_IO_CHUNK_BUFFER_SIZE); |
| // use Executor to speed up file creation |
| ExecutorService exec = Executors.newFixedThreadPool(16); |
| final ExecutorCompletionService<Boolean> completionService = |
| new ExecutorCompletionService<>(exec); |
| try { |
| final byte[] data = ContractTestUtils.dataset(testBufferSize, 'a', 'z'); |
| |
| for (int i = 0; i < count; ++i) { |
| final String fileName = "foo-" + i; |
| completionService.submit(new Callable<Boolean>() { |
| @Override |
| public Boolean call() throws IOException { |
| ContractTestUtils.createFile(fs, new Path(srcDir, fileName), |
| false, data); |
| return fs.exists(new Path(srcDir, fileName)); |
| } |
| }); |
| } |
| for (int i = 0; i < count; ++i) { |
| final Future<Boolean> future = completionService.take(); |
| try { |
| if (!future.get()) { |
| LOG.warn("cannot create file"); |
| } |
| } catch (ExecutionException e) { |
| LOG.warn("Error while uploading file", e.getCause()); |
| throw e; |
| } |
| } |
| } finally { |
| exec.shutdown(); |
| } |
| |
| int nSrcFiles = fs.listStatus(srcDir).length; |
| fs.rename(srcDir, finalDir); |
| assertEquals(nSrcFiles, fs.listStatus(finalDir).length); |
| ContractTestUtils.assertPathDoesNotExist(fs, "not deleted after rename", |
| new Path(srcDir, "foo-" + 0)); |
| ContractTestUtils.assertPathDoesNotExist(fs, "not deleted after rename", |
| new Path(srcDir, "foo-" + count / 2)); |
| ContractTestUtils.assertPathDoesNotExist(fs, "not deleted after rename", |
| new Path(srcDir, "foo-" + (count - 1))); |
| ContractTestUtils.assertPathExists(fs, "not renamed to dest dir", |
| new Path(finalDir, "foo-" + 0)); |
| ContractTestUtils.assertPathExists(fs, "not renamed to dest dir", |
| new Path(finalDir, "foo-" + count/2)); |
| ContractTestUtils.assertPathExists(fs, "not renamed to dest dir", |
| new Path(finalDir, "foo-" + (count-1))); |
| |
| ContractTestUtils.assertDeleted(fs, finalDir, true, false); |
| } |
| |
| } |