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 org.junit.Assert.assertEquals;
021import static org.junit.Assert.assertTrue;
022import static org.junit.Assert.fail;
023import static org.mockito.ArgumentMatchers.any;
024import static org.mockito.Mockito.doAnswer;
025import static org.mockito.Mockito.mock;
026import static org.mockito.Mockito.when;
027
028import java.io.ByteArrayOutputStream;
029import java.io.PrintStream;
030import java.util.ArrayList;
031import org.apache.hadoop.conf.Configuration;
032import org.apache.hadoop.fs.FileSystem;
033import org.apache.hadoop.fs.Path;
034import org.apache.hadoop.hbase.Cell;
035import org.apache.hadoop.hbase.CellUtil;
036import org.apache.hadoop.hbase.HBaseClassTestRule;
037import org.apache.hadoop.hbase.HBaseTestingUtility;
038import org.apache.hadoop.hbase.HConstants;
039import org.apache.hadoop.hbase.KeyValue;
040import org.apache.hadoop.hbase.MiniHBaseCluster;
041import org.apache.hadoop.hbase.TableName;
042import org.apache.hadoop.hbase.client.Delete;
043import org.apache.hadoop.hbase.client.Get;
044import org.apache.hadoop.hbase.client.Put;
045import org.apache.hadoop.hbase.client.Result;
046import org.apache.hadoop.hbase.client.Table;
047import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
048import org.apache.hadoop.hbase.mapreduce.WALPlayer.WALCellMapper;
049import org.apache.hadoop.hbase.testclassification.LargeTests;
050import org.apache.hadoop.hbase.testclassification.MapReduceTests;
051import org.apache.hadoop.hbase.util.Bytes;
052import org.apache.hadoop.hbase.util.CommonFSUtils;
053import org.apache.hadoop.hbase.util.LauncherSecurityManager;
054import org.apache.hadoop.hbase.util.MapReduceExtendedCell;
055import org.apache.hadoop.hbase.wal.WAL;
056import org.apache.hadoop.hbase.wal.WALEdit;
057import org.apache.hadoop.hbase.wal.WALKey;
058import org.apache.hadoop.mapreduce.Mapper;
059import org.apache.hadoop.mapreduce.Mapper.Context;
060import org.apache.hadoop.util.ToolRunner;
061import org.junit.AfterClass;
062import org.junit.BeforeClass;
063import org.junit.ClassRule;
064import org.junit.Rule;
065import org.junit.Test;
066import org.junit.experimental.categories.Category;
067import org.junit.rules.TestName;
068import org.mockito.invocation.InvocationOnMock;
069import org.mockito.stubbing.Answer;
070
071/**
072 * Basic test for the WALPlayer M/R tool
073 */
074@Category({ MapReduceTests.class, LargeTests.class })
075public class TestCellBasedWALPlayer2 {
076
077  @ClassRule
078  public static final HBaseClassTestRule CLASS_RULE =
079    HBaseClassTestRule.forClass(TestCellBasedWALPlayer2.class);
080
081  private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
082  private static MiniHBaseCluster cluster;
083  private static Path rootDir;
084  private static Path walRootDir;
085  private static FileSystem fs;
086  private static FileSystem logFs;
087  private static Configuration conf;
088
089  @Rule
090  public TestName name = new TestName();
091
092  @BeforeClass
093  public static void beforeClass() throws Exception {
094    conf = TEST_UTIL.getConfiguration();
095    rootDir = TEST_UTIL.createRootDir();
096    walRootDir = TEST_UTIL.createWALRootDir();
097    fs = CommonFSUtils.getRootDirFileSystem(conf);
098    logFs = CommonFSUtils.getWALFileSystem(conf);
099    cluster = TEST_UTIL.startMiniCluster();
100  }
101
102  @AfterClass
103  public static void afterClass() throws Exception {
104    TEST_UTIL.shutdownMiniCluster();
105    fs.delete(rootDir, true);
106    logFs.delete(walRootDir, true);
107  }
108
109  /**
110   * Simple end-to-end test n
111   */
112  @Test
113  public void testWALPlayer() throws Exception {
114    final TableName tableName1 = TableName.valueOf(name.getMethodName() + "1");
115    final TableName tableName2 = TableName.valueOf(name.getMethodName() + "2");
116    final byte[] FAMILY = Bytes.toBytes("family");
117    final byte[] COLUMN1 = Bytes.toBytes("c1");
118    final byte[] COLUMN2 = Bytes.toBytes("c2");
119    final byte[] ROW = Bytes.toBytes("row");
120    Table t1 = TEST_UTIL.createTable(tableName1, FAMILY);
121    Table t2 = TEST_UTIL.createTable(tableName2, FAMILY);
122
123    // put a row into the first table
124    Put p = new Put(ROW);
125    p.addColumn(FAMILY, COLUMN1, COLUMN1);
126    p.addColumn(FAMILY, COLUMN2, COLUMN2);
127    t1.put(p);
128    // delete one column
129    Delete d = new Delete(ROW);
130    d.addColumns(FAMILY, COLUMN1);
131    t1.delete(d);
132
133    // replay the WAL, map table 1 to table 2
134    WAL log = cluster.getRegionServer(0).getWAL(null);
135    log.rollWriter();
136    String walInputDir = new Path(cluster.getMaster().getMasterFileSystem().getWALRootDir(),
137      HConstants.HREGION_LOGDIR_NAME).toString();
138
139    Configuration configuration = TEST_UTIL.getConfiguration();
140    WALPlayer player = new WALPlayer(configuration);
141    String optionName = "_test_.name";
142    configuration.set(optionName, "1000");
143    player.setupTime(configuration, optionName);
144    assertEquals(1000, configuration.getLong(optionName, 0));
145    assertEquals(0, ToolRunner.run(configuration, player,
146      new String[] { walInputDir, tableName1.getNameAsString(), tableName2.getNameAsString() }));
147
148    // verify the WAL was player into table 2
149    Get g = new Get(ROW);
150    Result r = t2.get(g);
151    assertEquals(1, r.size());
152    assertTrue(CellUtil.matchingQualifier(r.rawCells()[0], COLUMN2));
153  }
154
155  /**
156   * Test WALKeyValueMapper setup and map
157   */
158  @Test
159  public void testWALKeyValueMapper() throws Exception {
160    testWALKeyValueMapper(WALPlayer.TABLES_KEY);
161  }
162
163  @Test
164  public void testWALKeyValueMapperWithDeprecatedConfig() throws Exception {
165    testWALKeyValueMapper("hlog.input.tables");
166  }
167
168  private void testWALKeyValueMapper(final String tableConfigKey) throws Exception {
169    Configuration configuration = new Configuration();
170    configuration.set(tableConfigKey, "table");
171    WALCellMapper mapper = new WALCellMapper();
172    WALKey key = mock(WALKey.class);
173    when(key.getTableName()).thenReturn(TableName.valueOf("table"));
174    @SuppressWarnings("unchecked")
175    Mapper<WALKey, WALEdit, ImmutableBytesWritable, Cell>.Context context = mock(Context.class);
176    when(context.getConfiguration()).thenReturn(configuration);
177
178    WALEdit value = mock(WALEdit.class);
179    ArrayList<Cell> values = new ArrayList<>();
180    KeyValue kv1 = new KeyValue(Bytes.toBytes("row"), Bytes.toBytes("family"), null);
181
182    values.add(kv1);
183    when(value.getCells()).thenReturn(values);
184    mapper.setup(context);
185
186    doAnswer(new Answer<Void>() {
187
188      @Override
189      public Void answer(InvocationOnMock invocation) throws Throwable {
190        ImmutableBytesWritable writer = (ImmutableBytesWritable) invocation.getArguments()[0];
191        MapReduceExtendedCell key = (MapReduceExtendedCell) invocation.getArguments()[1];
192        assertEquals("row", Bytes.toString(writer.get()));
193        assertEquals("row", Bytes.toString(CellUtil.cloneRow(key)));
194        return null;
195      }
196    }).when(context).write(any(ImmutableBytesWritable.class), any(MapReduceExtendedCell.class));
197
198    mapper.map(key, value, context);
199
200  }
201
202  /**
203   * Test main method
204   */
205  @Test
206  public void testMainMethod() throws Exception {
207
208    PrintStream oldPrintStream = System.err;
209    SecurityManager SECURITY_MANAGER = System.getSecurityManager();
210    LauncherSecurityManager newSecurityManager = new LauncherSecurityManager();
211    System.setSecurityManager(newSecurityManager);
212    ByteArrayOutputStream data = new ByteArrayOutputStream();
213    String[] args = {};
214    System.setErr(new PrintStream(data));
215    try {
216      System.setErr(new PrintStream(data));
217      try {
218        WALPlayer.main(args);
219        fail("should be SecurityException");
220      } catch (SecurityException e) {
221        assertEquals(-1, newSecurityManager.getExitCode());
222        assertTrue(data.toString().contains("ERROR: Wrong number of arguments:"));
223        assertTrue(data.toString()
224          .contains("Usage: WALPlayer [options] <WAL inputdir>" + " [<tables> <tableMappings>]"));
225        assertTrue(data.toString().contains("-Dwal.bulk.output=/path/for/output"));
226      }
227
228    } finally {
229      System.setErr(oldPrintStream);
230      System.setSecurityManager(SECURITY_MANAGER);
231    }
232
233  }
234
235}