Source code

001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.mapreduce;
019
020import static java.lang.String.format;
021import static org.junit.Assert.assertEquals;
022import static org.junit.Assert.assertFalse;
023import static org.junit.Assert.assertTrue;
024
025import java.io.File;
026import java.io.IOException;
027import java.util.Arrays;
028import java.util.HashMap;
029import java.util.Iterator;
030import java.util.Map;
031import java.util.Set;
032import java.util.TreeSet;
033import java.util.UUID;
034import org.apache.hadoop.conf.Configuration;
035import org.apache.hadoop.conf.Configured;
036import org.apache.hadoop.fs.FileSystem;
037import org.apache.hadoop.fs.Path;
038import org.apache.hadoop.hbase.Cell;
039import org.apache.hadoop.hbase.CellComparator;
040import org.apache.hadoop.hbase.HBaseConfiguration;
041import org.apache.hadoop.hbase.IntegrationTestingUtility;
042import org.apache.hadoop.hbase.KeyValue;
043import org.apache.hadoop.hbase.TableName;
044import org.apache.hadoop.hbase.client.Result;
045import org.apache.hadoop.hbase.client.Scan;
046import org.apache.hadoop.hbase.client.Table;
047import org.apache.hadoop.hbase.testclassification.IntegrationTests;
048import org.apache.hadoop.hbase.tool.LoadIncrementalHFiles;
049import org.apache.hadoop.hbase.util.Bytes;
050import org.apache.hadoop.mapreduce.lib.partition.TotalOrderPartitioner;
051import org.apache.hadoop.util.Tool;
052import org.apache.hadoop.util.ToolRunner;
053import org.junit.AfterClass;
054import org.junit.BeforeClass;
055import org.junit.Rule;
056import org.junit.Test;
057import org.junit.experimental.categories.Category;
058import org.junit.rules.TestName;
059import org.slf4j.Logger;
060import org.slf4j.LoggerFactory;
061
062import org.apache.hbase.thirdparty.com.google.common.base.Splitter;
063import org.apache.hbase.thirdparty.com.google.common.base.Strings;
064
065/**
066 * Validate ImportTsv + LoadIncrementalHFiles on a distributed cluster.
067 */
068@Category(IntegrationTests.class)
069public class IntegrationTestImportTsv extends Configured implements Tool {
070
071  private static final String NAME = IntegrationTestImportTsv.class.getSimpleName();
072  private static final Logger LOG = LoggerFactory.getLogger(IntegrationTestImportTsv.class);
073  private static final String GENERATED_HFILE_FOLDER_PARAM_KEY =
074    "IntegrationTestImportTsv.generatedHFileFolder";
075
076  protected static final String simple_tsv = "row1\t1\tc1\tc2\n" + "row2\t1\tc1\tc2\n"
077    + "row3\t1\tc1\tc2\n" + "row4\t1\tc1\tc2\n" + "row5\t1\tc1\tc2\n" + "row6\t1\tc1\tc2\n"
078    + "row7\t1\tc1\tc2\n" + "row8\t1\tc1\tc2\n" + "row9\t1\tc1\tc2\n" + "row10\t1\tc1\tc2\n";
079
080  @Rule
081  public TestName name = new TestName();
082
083  protected static final Set<KeyValue> simple_expected =
084    new TreeSet<KeyValue>(CellComparator.getInstance()) {
085      private static final long serialVersionUID = 1L;
086      {
087        byte[] family = Bytes.toBytes("d");
088        for (String line : Splitter.on('\n').split(simple_tsv)) {
089          if (Strings.isNullOrEmpty(line)) {
090            continue;
091          }
092          String[] row = line.split("\t");
093          byte[] key = Bytes.toBytes(row[0]);
094          long ts = Long.parseLong(row[1]);
095          byte[][] fields = { Bytes.toBytes(row[2]), Bytes.toBytes(row[3]) };
096          add(new KeyValue(key, family, fields[0], ts, KeyValue.Type.Put, fields[0]));
097          add(new KeyValue(key, family, fields[1], ts, KeyValue.Type.Put, fields[1]));
098        }
099      }
100    };
101
102  // this instance is initialized on first access when the test is run from
103  // JUnit/Maven or by main when run from the CLI.
104  protected static IntegrationTestingUtility util = null;
105
106  @Override
107  public Configuration getConf() {
108    return util.getConfiguration();
109  }
110
111  @Override
112  public void setConf(Configuration conf) {
113    LOG.debug("Ignoring setConf call.");
114  }
115
116  @BeforeClass
117  public static void provisionCluster() throws Exception {
118    if (null == util) {
119      util = new IntegrationTestingUtility();
120    }
121    util.initializeCluster(1);
122    if (!util.isDistributedCluster()) {
123      // also need MR when running without a real cluster
124      util.startMiniMapReduceCluster();
125    }
126  }
127
128  @AfterClass
129  public static void releaseCluster() throws Exception {
130    util.restoreCluster();
131    if (!util.isDistributedCluster()) {
132      util.shutdownMiniMapReduceCluster();
133    }
134    util = null;
135  }
136
137  /**
138   * Verify the data described by <code>simple_tsv</code> matches <code>simple_expected</code>.
139   */
140  protected void doLoadIncrementalHFiles(Path hfiles, TableName tableName) throws Exception {
141
142    String[] args = { hfiles.toString(), tableName.getNameAsString() };
143    LOG.info(format("Running LoadIncrememntalHFiles with args: %s", Arrays.asList(args)));
144    assertEquals("Loading HFiles failed.", 0,
145      ToolRunner.run(new LoadIncrementalHFiles(new Configuration(getConf())), args));
146
147    Table table = null;
148    Scan scan = new Scan();
149    scan.setCacheBlocks(false);
150    scan.setCaching(1000);
151
152    try {
153      table = util.getConnection().getTable(tableName);
154      Iterator<Result> resultsIt = table.getScanner(scan).iterator();
155      Iterator<KeyValue> expectedIt = simple_expected.iterator();
156      while (resultsIt.hasNext() && expectedIt.hasNext()) {
157        Result r = resultsIt.next();
158        for (Cell actual : r.rawCells()) {
159          assertTrue("Ran out of expected values prematurely!", expectedIt.hasNext());
160          KeyValue expected = expectedIt.next();
161          assertEquals("Scan produced surprising result", 0,
162            CellComparator.getInstance().compare(expected, actual));
163        }
164      }
165      assertFalse("Did not consume all expected values.", expectedIt.hasNext());
166      assertFalse("Did not consume all scan results.", resultsIt.hasNext());
167    } finally {
168      if (null != table) table.close();
169    }
170  }
171
172  /**
173   * Confirm the absence of the {@link TotalOrderPartitioner} partitions file.
174   */
175  protected static void validateDeletedPartitionsFile(Configuration conf) throws IOException {
176    if (!conf.getBoolean(IntegrationTestingUtility.IS_DISTRIBUTED_CLUSTER, false)) return;
177
178    FileSystem fs = FileSystem.get(conf);
179    Path partitionsFile = new Path(TotalOrderPartitioner.getPartitionFile(conf));
180    assertFalse("Failed to clean up partitions file.", fs.exists(partitionsFile));
181  }
182
183  @Test
184  public void testGenerateAndLoad() throws Exception {
185    generateAndLoad(TableName.valueOf(name.getMethodName()));
186  }
187
188  void generateAndLoad(final TableName table) throws Exception {
189    LOG.info("Running test testGenerateAndLoad.");
190    String cf = "d";
191    Path hfiles = initGeneratedHFilePath(table);
192    LOG.info("The folder where the HFiles will be generated: {}", hfiles.toString());
193
194    Map<String, String> args = new HashMap<>();
195    args.put(ImportTsv.BULK_OUTPUT_CONF_KEY, hfiles.toString());
196    args.put(ImportTsv.COLUMNS_CONF_KEY, format("HBASE_ROW_KEY,HBASE_TS_KEY,%s:c1,%s:c2", cf, cf));
197    // configure the test harness to NOT delete the HFiles after they're
198    // generated. We need those for doLoadIncrementalHFiles
199    args.put(TestImportTsv.DELETE_AFTER_LOAD_CONF, "false");
200
201    // run the job, complete the load.
202    util.createTable(table, new String[] { cf });
203    Tool t = TestImportTsv.doMROnTableTest(util, table, cf, simple_tsv, args);
204    doLoadIncrementalHFiles(hfiles, table);
205
206    // validate post-conditions
207    validateDeletedPartitionsFile(t.getConf());
208
209    // clean up after ourselves.
210    util.deleteTable(table);
211    util.cleanupDataTestDirOnTestFS(table.getNameAsString());
212    LOG.info("testGenerateAndLoad completed successfully.");
213  }
214
215  @Override
216  public int run(String[] args) throws Exception {
217    if (args.length != 0) {
218      System.err.println(format("%s [genericOptions]", NAME));
219      System.err.println("  Runs ImportTsv integration tests against a distributed cluster.");
220      System.err.println();
221      System.err.println("  Use '-D" + GENERATED_HFILE_FOLDER_PARAM_KEY + "=<path>' to define a");
222      System.err.println("  base folder for the generated HFiles. If HDFS Transparent Encryption");
223      System.err.println("  is configured, then make sure to set this parameter to a folder in");
224      System.err.println("  the same encryption zone in HDFS as the HBase root directory,");
225      System.err.println("  otherwise the bulkload will fail.");
226      System.err.println();
227      ToolRunner.printGenericCommandUsage(System.err);
228      return 1;
229    }
230
231    // adding more test methods? Don't forget to add them here... or consider doing what
232    // IntegrationTestsDriver does.
233    provisionCluster();
234    TableName tableName = TableName.valueOf("IntegrationTestImportTsv");
235    if (util.getAdmin().tableExists(tableName)) {
236      util.deleteTable(tableName);
237    }
238    generateAndLoad(tableName);
239    releaseCluster();
240
241    return 0;
242  }
243
244  private Path initGeneratedHFilePath(final TableName table) throws IOException {
245    String folderParam = getConf().getTrimmed(GENERATED_HFILE_FOLDER_PARAM_KEY);
246    if (folderParam == null || folderParam.isEmpty()) {
247      // by default, fall back to the test data dir
248      return new Path(util.getDataTestDirOnTestFS(table.getNameAsString()), "hfiles");
249    }
250
251    Path hfiles = new Path(folderParam, UUID.randomUUID().toString());
252    FileSystem fs = util.getTestFileSystem();
253    String shouldPreserve = System.getProperty("hbase.testing.preserve.testdir", "false");
254    if (!Boolean.parseBoolean(shouldPreserve)) {
255      if (fs.getUri().getScheme().equals(FileSystem.getLocal(getConf()).getUri().getScheme())) {
256        File localFoler = new File(hfiles.toString());
257        localFoler.deleteOnExit();
258      } else {
259        fs.deleteOnExit(hfiles);
260      }
261    }
262    return hfiles;
263  }
264
265  public static void main(String[] args) throws Exception {
266    Configuration conf = HBaseConfiguration.create();
267    IntegrationTestingUtility.setUseDistributedCluster(conf);
268    util = new IntegrationTestingUtility(conf);
269    int status = ToolRunner.run(conf, new IntegrationTestImportTsv(), args);
270    System.exit(status);
271  }
272}