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.regionserver;
019
020import static org.junit.Assert.assertEquals;
021import static org.junit.Assert.assertTrue;
022
023import java.io.IOException;
024import java.util.Arrays;
025import java.util.List;
026import org.apache.hadoop.conf.Configuration;
027import org.apache.hadoop.fs.Path;
028import org.apache.hadoop.hbase.CellComparator;
029import org.apache.hadoop.hbase.ExtendedCell;
030import org.apache.hadoop.hbase.HBaseClassTestRule;
031import org.apache.hadoop.hbase.HBaseTestingUtil;
032import org.apache.hadoop.hbase.HConstants;
033import org.apache.hadoop.hbase.KeyValue;
034import org.apache.hadoop.hbase.TableName;
035import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
036import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
037import org.apache.hadoop.hbase.client.RegionInfo;
038import org.apache.hadoop.hbase.client.RegionInfoBuilder;
039import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
040import org.apache.hadoop.hbase.testclassification.RegionServerTests;
041import org.apache.hadoop.hbase.testclassification.SmallTests;
042import org.apache.hadoop.hbase.util.Bytes;
043import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
044import org.apache.hadoop.hbase.util.EnvironmentEdgeManagerTestHelper;
045import org.junit.After;
046import org.junit.Before;
047import org.junit.ClassRule;
048import org.junit.Test;
049import org.junit.experimental.categories.Category;
050
051/**
052 * Test the {@link MemStoreCompactorSegmentsIterator} and {@link MemStoreMergerSegmentsIterator}
053 * class, Test for bug : HBASE-22324
054 */
055@Category({ RegionServerTests.class, SmallTests.class })
056public class TestMemStoreSegmentsIterator {
057
058  @ClassRule
059  public static final HBaseClassTestRule CLASS_RULE =
060    HBaseClassTestRule.forClass(TestMemStoreSegmentsIterator.class);
061
062  private static String TABLE = "test_mscsi";
063  private static String FAMILY = "f";
064  private static String COLUMN = "c";
065  private static String ROOT_SUB_PATH = "testMemStoreSegmentsIterator";
066  private static long LESS_THAN_INTEGER_MAX_VALUE_SEQ_ID = Long.valueOf(Integer.MAX_VALUE) - 1;
067  private static long GREATER_THAN_INTEGER_MAX_VALUE_SEQ_ID = Long.valueOf(Integer.MAX_VALUE) + 1;
068
069  private CellComparator comparator;
070  private int compactionKVMax;
071  private HRegion region;
072  private HStore store;
073
074  @Before
075  public void setup() throws IOException {
076    Configuration conf = new Configuration();
077    HBaseTestingUtil hbaseUtility = new HBaseTestingUtil(conf);
078    TableDescriptorBuilder tableDescriptorBuilder =
079      TableDescriptorBuilder.newBuilder(TableName.valueOf(TABLE));
080    ColumnFamilyDescriptor columnFamilyDescriptor =
081      ColumnFamilyDescriptorBuilder.newBuilder(Bytes.toBytes(FAMILY)).build();
082    tableDescriptorBuilder.setColumnFamily(columnFamilyDescriptor);
083
084    RegionInfo info = RegionInfoBuilder.newBuilder(TableName.valueOf(TABLE)).build();
085    Path rootPath = hbaseUtility.getDataTestDir(ROOT_SUB_PATH);
086    this.region =
087      HBaseTestingUtil.createRegionAndWAL(info, rootPath, conf, tableDescriptorBuilder.build());
088    this.store = region.getStore(columnFamilyDescriptor.getName());
089    this.comparator = CellComparator.getInstance();
090    this.compactionKVMax = HConstants.COMPACTION_KV_MAX_DEFAULT;
091  }
092
093  @Test
094  public void testMemStoreCompactorSegmentsIteratorNext() throws IOException {
095    List<ImmutableSegment> segments = Arrays.asList(createTestImmutableSegment());
096    MemStoreCompactorSegmentsIterator iterator = new MemStoreCompactorSegmentsIterator(segments,
097      this.comparator, this.compactionKVMax, this.store);
098    verifyNext(iterator);
099    closeTestSegments(segments);
100  }
101
102  @Test
103  public void testMemStoreMergerSegmentsIteratorNext() throws IOException {
104    List<ImmutableSegment> segments = Arrays.asList(createTestImmutableSegment());
105    MemStoreMergerSegmentsIterator iterator =
106      new MemStoreMergerSegmentsIterator(segments, this.comparator, this.compactionKVMax);
107    verifyNext(iterator);
108    closeTestSegments(segments);
109  }
110
111  protected ImmutableSegment createTestImmutableSegment() {
112    ImmutableSegment segment1 = SegmentFactory.instance().createImmutableSegment(this.comparator);
113    final byte[] one = Bytes.toBytes(1);
114    final byte[] two = Bytes.toBytes(2);
115    final byte[] f = Bytes.toBytes(FAMILY);
116    final byte[] q = Bytes.toBytes(COLUMN);
117    final byte[] v = Bytes.toBytes(3);
118    final KeyValue kv1 = new KeyValue(one, f, q, EnvironmentEdgeManager.currentTime(), v);
119    final KeyValue kv2 = new KeyValue(two, f, q, EnvironmentEdgeManager.currentTime(), v);
120    // the seqId of first cell less than Integer.MAX_VALUE,
121    // the seqId of second cell greater than integer.MAX_VALUE
122    kv1.setSequenceId(LESS_THAN_INTEGER_MAX_VALUE_SEQ_ID);
123    kv2.setSequenceId(GREATER_THAN_INTEGER_MAX_VALUE_SEQ_ID);
124    segment1.internalAdd(kv1, false, null, true);
125    segment1.internalAdd(kv2, false, null, true);
126    return segment1;
127  }
128
129  protected void closeTestSegments(List<ImmutableSegment> segments) {
130    for (Segment segment : segments) {
131      segment.close();
132    }
133  }
134
135  protected void verifyNext(MemStoreSegmentsIterator iterator) {
136    // check first cell
137    assertTrue(iterator.hasNext());
138    ExtendedCell firstCell = iterator.next();
139    assertEquals(LESS_THAN_INTEGER_MAX_VALUE_SEQ_ID, firstCell.getSequenceId());
140
141    // check second cell
142    assertTrue(iterator.hasNext());
143    ExtendedCell secondCell = iterator.next();
144    assertEquals(GREATER_THAN_INTEGER_MAX_VALUE_SEQ_ID, secondCell.getSequenceId());
145  }
146
147  @After
148  public void tearDown() throws Exception {
149    EnvironmentEdgeManagerTestHelper.reset();
150    if (region != null) {
151      HBaseTestingUtil.closeRegionAndWAL(region);
152    }
153  }
154}