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.master.region;
019
020import static org.junit.Assert.assertEquals;
021import static org.junit.Assert.assertFalse;
022
023import java.io.FileNotFoundException;
024import java.io.IOException;
025import org.apache.hadoop.conf.Configuration;
026import org.apache.hadoop.fs.FileStatus;
027import org.apache.hadoop.fs.FileSystem;
028import org.apache.hadoop.fs.Path;
029import org.apache.hadoop.hbase.HBaseClassTestRule;
030import org.apache.hadoop.hbase.Stoppable;
031import org.apache.hadoop.hbase.client.Put;
032import org.apache.hadoop.hbase.master.cleaner.HFileCleaner;
033import org.apache.hadoop.hbase.master.cleaner.TimeToLiveMasterLocalStoreHFileCleaner;
034import org.apache.hadoop.hbase.regionserver.Store;
035import org.apache.hadoop.hbase.testclassification.MasterTests;
036import org.apache.hadoop.hbase.testclassification.MediumTests;
037import org.apache.hadoop.hbase.util.Bytes;
038import org.apache.hadoop.hbase.util.HFileArchiveUtil;
039import org.junit.ClassRule;
040import org.junit.Test;
041import org.junit.experimental.categories.Category;
042
043@Category({ MasterTests.class, MediumTests.class })
044public class TestMasterRegionCompaction extends MasterRegionTestBase {
045
046  @ClassRule
047  public static final HBaseClassTestRule CLASS_RULE =
048    HBaseClassTestRule.forClass(TestMasterRegionCompaction.class);
049
050  private int compactMin = 4;
051
052  private HFileCleaner hfileCleaner;
053
054  @Override
055  protected void configure(MasterRegionParams params) {
056    params.compactMin(compactMin);
057  }
058
059  @Override
060  protected void postSetUp() throws IOException {
061    Configuration conf = htu.getConfiguration();
062    conf.setLong(TimeToLiveMasterLocalStoreHFileCleaner.TTL_CONF_KEY, 5000);
063    Path testDir = htu.getDataTestDir();
064    FileSystem fs = testDir.getFileSystem(conf);
065    Path globalArchivePath = HFileArchiveUtil.getArchivePath(conf);
066    hfileCleaner = new HFileCleaner(500, new Stoppable() {
067
068      private volatile boolean stopped = false;
069
070      @Override
071      public void stop(String why) {
072        stopped = true;
073      }
074
075      @Override
076      public boolean isStopped() {
077        return stopped;
078      }
079    }, conf, fs, globalArchivePath, cleanerPool);
080    choreService.scheduleChore(hfileCleaner);
081  }
082
083  private int getStorefilesCount() {
084    return region.region.getStores().stream().mapToInt(Store::getStorefilesCount).sum();
085  }
086
087  private void assertFileCount(FileSystem fs, Path storeArchiveDir, int expected)
088    throws IOException {
089    FileStatus[] compactedHFiles = fs.listStatus(storeArchiveDir);
090    assertEquals(expected, compactedHFiles.length);
091  }
092
093  @Test
094  public void test() throws IOException, InterruptedException {
095    for (int i = 0; i < compactMin - 1; i++) {
096      final int index = i;
097      region.update(
098        r -> r.put(new Put(Bytes.toBytes(index)).addColumn(CF1, QUALIFIER, Bytes.toBytes(index))
099          .addColumn(CF2, QUALIFIER, Bytes.toBytes(index))));
100      region.flush(true);
101    }
102    assertEquals(2 * (compactMin - 1), getStorefilesCount());
103    region.update(r -> r.put(new Put(Bytes.toBytes(compactMin - 1)).addColumn(CF1, QUALIFIER,
104      Bytes.toBytes(compactMin - 1))));
105    region.flusherAndCompactor.requestFlush();
106    htu.waitFor(15000, () -> getStorefilesCount() == 2);
107    Path store1ArchiveDir = HFileArchiveUtil.getStoreArchivePathForRootDir(htu.getDataTestDir(),
108      region.region.getRegionInfo(), CF1);
109    Path store2ArchiveDir = HFileArchiveUtil.getStoreArchivePathForRootDir(htu.getDataTestDir(),
110      region.region.getRegionInfo(), CF2);
111    FileSystem fs = store1ArchiveDir.getFileSystem(htu.getConfiguration());
112    // after compaction, the old hfiles should have been compacted
113    htu.waitFor(15000, () -> {
114      try {
115        FileStatus[] fses1 = fs.listStatus(store1ArchiveDir);
116        FileStatus[] fses2 = fs.listStatus(store2ArchiveDir);
117        return fses1 != null && fses1.length == compactMin && fses2 != null &&
118          fses2.length == compactMin - 1;
119      } catch (FileNotFoundException e) {
120        return false;
121      }
122    });
123    // ttl has not expired, so should not delete any files
124    Thread.sleep(1000);
125    FileStatus[] compactedHFiles = fs.listStatus(store1ArchiveDir);
126    assertEquals(compactMin, compactedHFiles.length);
127    assertFileCount(fs, store2ArchiveDir, compactMin - 1);
128    Thread.sleep(2000);
129    // touch one file
130
131    long currentTime = System.currentTimeMillis();
132    fs.setTimes(compactedHFiles[0].getPath(), currentTime, currentTime);
133    Thread.sleep(3000);
134    // only the touched file is still there after clean up
135    FileStatus[] remainingHFiles = fs.listStatus(store1ArchiveDir);
136    assertEquals(1, remainingHFiles.length);
137    assertEquals(compactedHFiles[0].getPath(), remainingHFiles[0].getPath());
138    assertFalse(fs.exists(store2ArchiveDir));
139    Thread.sleep(6000);
140    // the touched file should also be cleaned up and then the cleaner will delete the parent
141    // directory since it is empty.
142    assertFalse(fs.exists(store1ArchiveDir));
143  }
144}