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