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17 package org.apache.hadoop.hbase.io.hfile;
18
19 import static org.junit.Assert.assertEquals;
20
21 import java.io.IOException;
22 import java.util.ArrayList;
23 import java.util.Collection;
24 import java.util.List;
25 import java.util.Set;
26
27 import org.apache.commons.logging.Log;
28 import org.apache.commons.logging.LogFactory;
29 import org.apache.hadoop.conf.Configuration;
30 import org.apache.hadoop.hbase.Cell;
31 import org.apache.hadoop.hbase.TableName;
32 import org.apache.hadoop.hbase.HBaseTestingUtility;
33 import org.apache.hadoop.hbase.HColumnDescriptor;
34 import org.apache.hadoop.hbase.HRegionInfo;
35 import org.apache.hadoop.hbase.HTableDescriptor;
36 import org.apache.hadoop.hbase.KeyValue;
37 import org.apache.hadoop.hbase.MediumTests;
38 import org.apache.hadoop.hbase.client.Put;
39 import org.apache.hadoop.hbase.client.Scan;
40 import org.apache.hadoop.hbase.regionserver.HRegion;
41 import org.apache.hadoop.hbase.regionserver.HStore;
42 import org.apache.hadoop.hbase.regionserver.InternalScanner;
43 import org.apache.hadoop.hbase.util.Bytes;
44 import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
45 import org.apache.hadoop.hbase.util.Threads;
46 import org.junit.Test;
47 import org.junit.experimental.categories.Category;
48 import org.junit.runner.RunWith;
49 import org.junit.runners.Parameterized;
50 import org.junit.runners.Parameterized.Parameters;
51
52
53
54
55
56 @RunWith(Parameterized.class)
57 @Category(MediumTests.class)
58 public class TestScannerSelectionUsingTTL {
59
60 private static final Log LOG =
61 LogFactory.getLog(TestScannerSelectionUsingTTL.class);
62
63 private static final HBaseTestingUtility TEST_UTIL =
64 new HBaseTestingUtility().createLocalHTU();
65 private static TableName TABLE = TableName.valueOf("myTable");
66 private static String FAMILY = "myCF";
67 private static byte[] FAMILY_BYTES = Bytes.toBytes(FAMILY);
68
69 private static final int TTL_SECONDS = 10;
70 private static final int TTL_MS = TTL_SECONDS * 1000;
71
72 private static final int NUM_EXPIRED_FILES = 2;
73 private static final int NUM_ROWS = 8;
74 private static final int NUM_COLS_PER_ROW = 5;
75
76 public final int numFreshFiles, totalNumFiles;
77
78
79 private final boolean explicitCompaction;
80
81 @Parameters
82 public static Collection<Object[]> parameters() {
83 List<Object[]> params = new ArrayList<Object[]>();
84 for (int numFreshFiles = 1; numFreshFiles <= 3; ++numFreshFiles) {
85 for (boolean explicitCompaction : new boolean[] { false, true }) {
86 params.add(new Object[] { numFreshFiles, explicitCompaction });
87 }
88 }
89 return params;
90 }
91
92 public TestScannerSelectionUsingTTL(int numFreshFiles,
93 boolean explicitCompaction) {
94 this.numFreshFiles = numFreshFiles;
95 this.totalNumFiles = numFreshFiles + NUM_EXPIRED_FILES;
96 this.explicitCompaction = explicitCompaction;
97 }
98
99 @Test
100 public void testScannerSelection() throws IOException {
101 Configuration conf = TEST_UTIL.getConfiguration();
102 conf.setBoolean("hbase.store.delete.expired.storefile", false);
103 HColumnDescriptor hcd =
104 new HColumnDescriptor(FAMILY_BYTES)
105 .setMaxVersions(Integer.MAX_VALUE)
106 .setTimeToLive(TTL_SECONDS);
107 HTableDescriptor htd = new HTableDescriptor(TABLE);
108 htd.addFamily(hcd);
109 HRegionInfo info = new HRegionInfo(TABLE);
110 HRegion region =
111 HRegion.createHRegion(info, TEST_UTIL.getDataTestDir(info.getEncodedName()),
112 conf, htd);
113
114 long ts = EnvironmentEdgeManager.currentTimeMillis();
115 long version = 0;
116 for (int iFile = 0; iFile < totalNumFiles; ++iFile) {
117 if (iFile == NUM_EXPIRED_FILES) {
118 Threads.sleepWithoutInterrupt(TTL_MS);
119 version += TTL_MS;
120 }
121
122 for (int iRow = 0; iRow < NUM_ROWS; ++iRow) {
123 Put put = new Put(Bytes.toBytes("row" + iRow));
124 for (int iCol = 0; iCol < NUM_COLS_PER_ROW; ++iCol) {
125 put.add(FAMILY_BYTES, Bytes.toBytes("col" + iCol),
126 ts + version, Bytes.toBytes("value" + iFile + "_" + iRow + "_" + iCol));
127 }
128 region.put(put);
129 }
130 region.flushcache();
131 version++;
132 }
133
134 Scan scan = new Scan();
135 scan.setMaxVersions(Integer.MAX_VALUE);
136 CacheConfig cacheConf = new CacheConfig(conf);
137 LruBlockCache cache = (LruBlockCache) cacheConf.getBlockCache();
138 cache.clearCache();
139 InternalScanner scanner = region.getScanner(scan);
140 List<Cell> results = new ArrayList<Cell>();
141 final int expectedKVsPerRow = numFreshFiles * NUM_COLS_PER_ROW;
142 int numReturnedRows = 0;
143 LOG.info("Scanning the entire table");
144 while (scanner.next(results) || results.size() > 0) {
145 assertEquals(expectedKVsPerRow, results.size());
146 ++numReturnedRows;
147 results.clear();
148 }
149 assertEquals(NUM_ROWS, numReturnedRows);
150 Set<String> accessedFiles = cache.getCachedFileNamesForTest();
151 LOG.debug("Files accessed during scan: " + accessedFiles);
152
153
154 if (explicitCompaction) {
155 HStore store = (HStore)region.getStore(FAMILY_BYTES);
156 store.compactRecentForTestingAssumingDefaultPolicy(totalNumFiles);
157 } else {
158 region.compactStores();
159 }
160
161 region.close();
162 }
163 }