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;
021
022import java.util.ArrayList;
023import java.util.List;
024import org.apache.hadoop.conf.Configuration;
025import org.apache.hadoop.fs.FileStatus;
026import org.apache.hadoop.fs.LocatedFileStatus;
027import org.apache.hadoop.fs.Path;
028import org.apache.hadoop.hbase.HBaseClassTestRule;
029import org.apache.hadoop.hbase.HBaseTestingUtil;
030import org.apache.hadoop.hbase.HConstants;
031import org.apache.hadoop.hbase.regionserver.HRegionServer;
032import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;
033import org.apache.hadoop.hbase.testclassification.MapReduceTests;
034import org.apache.hadoop.hbase.testclassification.MediumTests;
035import org.apache.hadoop.hbase.util.CommonFSUtils;
036import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
037import org.apache.hadoop.mapreduce.InputSplit;
038import org.apache.hadoop.mapreduce.Job;
039import org.apache.hadoop.mapreduce.JobContext;
040import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
041import org.junit.BeforeClass;
042import org.junit.ClassRule;
043import org.junit.Test;
044import org.junit.experimental.categories.Category;
045import org.mockito.Mockito;
046
047@Category({ MapReduceTests.class, MediumTests.class })
048public class TestWALInputFormat {
049  private static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();
050
051  @ClassRule
052  public static final HBaseClassTestRule CLASS_RULE =
053    HBaseClassTestRule.forClass(TestWALInputFormat.class);
054
055  @BeforeClass
056  public static void setupClass() throws Exception {
057    TEST_UTIL.startMiniCluster();
058    TEST_UTIL.createWALRootDir();
059  }
060
061  /**
062   * Test the primitive start/end time filtering.
063   */
064  @Test
065  public void testAddFile() {
066    List<FileStatus> lfss = new ArrayList<>();
067    LocatedFileStatus lfs = Mockito.mock(LocatedFileStatus.class);
068    long now = EnvironmentEdgeManager.currentTime();
069    Mockito.when(lfs.getPath()).thenReturn(new Path("/name." + now));
070    WALInputFormat.addFile(lfss, lfs, now, now);
071    assertEquals(1, lfss.size());
072    WALInputFormat.addFile(lfss, lfs, now - 1, now - 1);
073    assertEquals(1, lfss.size());
074    WALInputFormat.addFile(lfss, lfs, now - 2, now - 1);
075    assertEquals(1, lfss.size());
076    WALInputFormat.addFile(lfss, lfs, now - 2, now);
077    assertEquals(2, lfss.size());
078    WALInputFormat.addFile(lfss, lfs, Long.MIN_VALUE, now);
079    assertEquals(3, lfss.size());
080    WALInputFormat.addFile(lfss, lfs, Long.MIN_VALUE, Long.MAX_VALUE);
081    assertEquals(4, lfss.size());
082    WALInputFormat.addFile(lfss, lfs, now, now + 2);
083    assertEquals(5, lfss.size());
084    WALInputFormat.addFile(lfss, lfs, now + 1, now + 2);
085    assertEquals(5, lfss.size());
086    Mockito.when(lfs.getPath()).thenReturn(new Path("/name"));
087    WALInputFormat.addFile(lfss, lfs, Long.MIN_VALUE, Long.MAX_VALUE);
088    assertEquals(6, lfss.size());
089    Mockito.when(lfs.getPath()).thenReturn(new Path("/name.123"));
090    WALInputFormat.addFile(lfss, lfs, Long.MIN_VALUE, Long.MAX_VALUE);
091    assertEquals(7, lfss.size());
092    Mockito.when(lfs.getPath()).thenReturn(new Path("/name." + now + ".meta"));
093    WALInputFormat.addFile(lfss, lfs, now, now);
094    assertEquals(8, lfss.size());
095  }
096
097  @Test
098  public void testHandlesArchivedWALFiles() throws Exception {
099    Configuration conf = TEST_UTIL.getConfiguration();
100    JobContext ctx = Mockito.mock(JobContext.class);
101    Mockito.when(ctx.getConfiguration()).thenReturn(conf);
102    Job job = Job.getInstance(conf);
103    TableMapReduceUtil.initCredentialsForCluster(job, conf);
104    Mockito.when(ctx.getCredentials()).thenReturn(job.getCredentials());
105
106    // Setup WAL file, then archive it
107    HRegionServer rs = TEST_UTIL.getHBaseCluster().getRegionServer(0);
108    AbstractFSWAL wal = (AbstractFSWAL) rs.getWALs().get(0);
109    Path walPath = wal.getCurrentFileName();
110    TEST_UTIL.getConfiguration().set(FileInputFormat.INPUT_DIR, walPath.toString());
111    TEST_UTIL.getConfiguration().set(WALPlayer.INPUT_FILES_SEPARATOR_KEY, ";");
112
113    Path rootDir = CommonFSUtils.getWALRootDir(conf);
114    Path archiveWal = new Path(rootDir, HConstants.HREGION_OLDLOGDIR_NAME);
115    archiveWal = new Path(archiveWal, walPath.getName());
116    TEST_UTIL.getTestFileSystem().delete(walPath, true);
117    TEST_UTIL.getTestFileSystem().mkdirs(archiveWal.getParent());
118    TEST_UTIL.getTestFileSystem().create(archiveWal).close();
119
120    // Test for that we can read from the archived WAL file
121    WALInputFormat wif = new WALInputFormat();
122    List<InputSplit> splits = wif.getSplits(ctx);
123    assertEquals(1, splits.size());
124    WALInputFormat.WALSplit split = (WALInputFormat.WALSplit) splits.get(0);
125    assertEquals(archiveWal.toString(), split.getLogFileName());
126  }
127
128}