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17 package org.apache.hadoop.hbase.io.hfile;
18
19 import static org.junit.Assert.assertFalse;
20 import static org.junit.Assert.assertTrue;
21
22 import java.io.IOException;
23 import java.util.ArrayList;
24 import java.util.Arrays;
25 import java.util.Collection;
26 import java.util.List;
27 import java.util.Map;
28
29 import org.apache.hadoop.hbase.HBaseTestingUtility;
30 import org.apache.hadoop.hbase.HColumnDescriptor;
31 import org.apache.hadoop.hbase.MediumTests;
32 import org.apache.hadoop.hbase.client.Get;
33 import org.apache.hadoop.hbase.client.Put;
34 import org.apache.hadoop.hbase.io.hfile.BlockType.BlockCategory;
35 import org.apache.hadoop.hbase.io.hfile.Compression.Algorithm;
36 import org.apache.hadoop.hbase.regionserver.HRegion;
37 import org.apache.hadoop.hbase.regionserver.StoreFile.BloomType;
38 import org.apache.hadoop.hbase.regionserver.metrics.SchemaMetrics;
39 import org.apache.hadoop.hbase.regionserver.metrics.SchemaMetrics.BlockMetricType;
40 import org.apache.hadoop.hbase.util.Bytes;
41 import org.junit.Test;
42 import org.junit.experimental.categories.Category;
43 import org.junit.runner.RunWith;
44 import org.junit.runners.Parameterized;
45 import org.junit.runners.Parameterized.Parameters;
46
47
48
49
50
51
52 @Category(MediumTests.class)
53 @RunWith(Parameterized.class)
54 public class TestForceCacheImportantBlocks {
55
56 private final HBaseTestingUtility TEST_UTIL =
57 new HBaseTestingUtility();
58
59 private static final String TABLE = "myTable";
60 private static final String CF = "myCF";
61 private static final byte[] CF_BYTES = Bytes.toBytes(CF);
62 private static final int MAX_VERSIONS = 3;
63 private static final int NUM_HFILES = 5;
64
65 private static final int ROWS_PER_HFILE = 100;
66 private static final int NUM_ROWS = NUM_HFILES * ROWS_PER_HFILE;
67 private static final int NUM_COLS_PER_ROW = 50;
68 private static final int NUM_TIMESTAMPS_PER_COL = 50;
69
70
71 private static final int BLOCK_SIZE = 256;
72
73 private static final BloomType BLOOM_TYPE = BloomType.ROW;
74
75 private final int hfileVersion;
76 private final boolean cfCacheEnabled;
77 private final Algorithm compressionAlgorithm;
78
79 @Parameters
80 public static Collection<Object[]> parameters() {
81
82 return Arrays.asList(new Object[][] {
83 new Object[] { new Integer(1), false, Compression.Algorithm.NONE },
84 new Object[] { new Integer(1), true, Compression.Algorithm.NONE },
85 new Object[] { new Integer(2), false, Compression.Algorithm.NONE },
86 new Object[] { new Integer(2), true, Compression.Algorithm.NONE },
87 new Object[] { new Integer(2), false, Compression.Algorithm.GZ },
88 new Object[] { new Integer(2), true, Compression.Algorithm.GZ }
89 });
90 }
91
92 public TestForceCacheImportantBlocks(int hfileVersion,
93 boolean cfCacheEnabled, Algorithm compression) {
94 this.hfileVersion = hfileVersion;
95 this.cfCacheEnabled = cfCacheEnabled;
96 this.compressionAlgorithm = compression;
97 TEST_UTIL.getConfiguration().setInt(HFile.FORMAT_VERSION_KEY,
98 hfileVersion);
99 }
100
101 @Test
102 public void testCacheBlocks() throws IOException {
103
104 TEST_UTIL.getConfiguration().setInt(HFileBlockIndex.MAX_CHUNK_SIZE_KEY,
105 BLOCK_SIZE);
106
107 SchemaMetrics.setUseTableNameInTest(false);
108 HColumnDescriptor hcd =
109 new HColumnDescriptor(Bytes.toBytes(CF))
110 .setMaxVersions(MAX_VERSIONS)
111 .setCompressionType(compressionAlgorithm)
112 .setBloomFilterType(BLOOM_TYPE);
113 hcd.setBlocksize(BLOCK_SIZE);
114 hcd.setBlockCacheEnabled(cfCacheEnabled);
115 HRegion region = TEST_UTIL.createTestRegion(TABLE, hcd);
116 writeTestData(region);
117 Map<String, Long> metricsBefore = SchemaMetrics.getMetricsSnapshot();
118 for (int i = 0; i < NUM_ROWS; ++i) {
119 Get get = new Get(Bytes.toBytes("row" + i));
120 region.get(get, null);
121 }
122 SchemaMetrics.validateMetricChanges(metricsBefore);
123 Map<String, Long> metricsAfter = SchemaMetrics.getMetricsSnapshot();
124 Map<String, Long> metricsDelta = SchemaMetrics.diffMetrics(metricsBefore,
125 metricsAfter);
126 SchemaMetrics metrics = SchemaMetrics.getInstance(TABLE, CF);
127 List<BlockCategory> importantBlockCategories =
128 new ArrayList<BlockCategory>();
129 importantBlockCategories.add(BlockCategory.BLOOM);
130 if (hfileVersion == 2) {
131
132 importantBlockCategories.add(BlockCategory.INDEX);
133 }
134
135 for (BlockCategory category : importantBlockCategories) {
136 String hitsMetricName = getMetricName(metrics, category);
137 assertTrue("Metric " + hitsMetricName + " was not incremented",
138 metricsDelta.containsKey(hitsMetricName));
139 long hits = metricsDelta.get(hitsMetricName);
140 assertTrue("Invalid value of " + hitsMetricName + ": " + hits, hits > 0);
141 }
142
143 if (!cfCacheEnabled) {
144
145
146 String dataHitMetricName = getMetricName(metrics, BlockCategory.DATA);
147 assertFalse("Nonzero value for metric " + dataHitMetricName,
148 metricsDelta.containsKey(dataHitMetricName));
149 }
150 }
151
152 private String getMetricName(SchemaMetrics metrics, BlockCategory category) {
153 String hitsMetricName =
154 metrics.getBlockMetricName(category, SchemaMetrics.NO_COMPACTION,
155 BlockMetricType.CACHE_HIT);
156 return hitsMetricName;
157 }
158
159 private void writeTestData(HRegion region) throws IOException {
160 for (int i = 0; i < NUM_ROWS; ++i) {
161 Put put = new Put(Bytes.toBytes("row" + i));
162 for (int j = 0; j < NUM_COLS_PER_ROW; ++j) {
163 for (long ts = 1; ts < NUM_TIMESTAMPS_PER_COL; ++ts) {
164 put.add(CF_BYTES, Bytes.toBytes("col" + j), ts,
165 Bytes.toBytes("value" + i + "_" + j + "_" + ts));
166 }
167 }
168 region.put(put);
169 if ((i + 1) % ROWS_PER_HFILE == 0) {
170 region.flushcache();
171 }
172 }
173 }
174
175 }
176