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19 package org.apache.hadoop.hbase.mapreduce;
20
21 import org.apache.hadoop.conf.Configuration;
22 import org.apache.hadoop.fs.FileStatus;
23 import org.apache.hadoop.fs.FileSystem;
24 import org.apache.hadoop.fs.Path;
25 import org.apache.hadoop.hbase.Cell;
26 import org.apache.hadoop.hbase.CellScanner;
27 import org.apache.hadoop.hbase.HBaseTestingUtility;
28 import org.apache.hadoop.hbase.TableName;
29 import org.apache.hadoop.hbase.client.HBaseAdmin;
30 import org.apache.hadoop.hbase.client.HTable;
31 import org.apache.hadoop.hbase.client.Result;
32 import org.apache.hadoop.hbase.io.HFileLink;
33 import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
34 import org.apache.hadoop.hbase.master.snapshot.SnapshotManager;
35 import org.apache.hadoop.hbase.regionserver.StoreFileInfo;
36 import org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils;
37 import org.apache.hadoop.hbase.util.Bytes;
38 import org.apache.hadoop.hbase.util.FSUtils;
39 import org.apache.hadoop.hbase.util.HFileArchiveUtil;
40 import org.junit.Assert;
41 import org.junit.Test;
42
43 import static org.junit.Assert.assertFalse;
44
45 import java.io.IOException;
46 import java.util.Arrays;
47
48 public abstract class TableSnapshotInputFormatTestBase {
49
50 protected final HBaseTestingUtility UTIL = new HBaseTestingUtility();
51 protected static final int NUM_REGION_SERVERS = 2;
52 protected static final byte[][] FAMILIES = {Bytes.toBytes("f1"), Bytes.toBytes("f2")};
53
54 protected FileSystem fs;
55 protected Path rootDir;
56
57 public void setupCluster() throws Exception {
58 setupConf(UTIL.getConfiguration());
59 UTIL.startMiniCluster(NUM_REGION_SERVERS);
60 rootDir = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getRootDir();
61 fs = rootDir.getFileSystem(UTIL.getConfiguration());
62 }
63
64 public void tearDownCluster() throws Exception {
65 UTIL.shutdownMiniCluster();
66 }
67
68 private static void setupConf(Configuration conf) {
69
70 conf.setBoolean(SnapshotManager.HBASE_SNAPSHOT_ENABLED, true);
71 }
72
73 protected abstract void testWithMockedMapReduce(HBaseTestingUtility util, String snapshotName,
74 int numRegions, int expectedNumSplits) throws Exception;
75
76 protected abstract void testWithMapReduceImpl(HBaseTestingUtility util, TableName tableName,
77 String snapshotName, Path tableDir, int numRegions, int expectedNumSplits,
78 boolean shutdownCluster) throws Exception;
79
80 protected abstract byte[] getStartRow();
81
82 protected abstract byte[] getEndRow();
83
84 @Test
85 public void testWithMockedMapReduceSingleRegion() throws Exception {
86 testWithMockedMapReduce(UTIL, "testWithMockedMapReduceSingleRegion", 1, 1);
87 }
88
89 @Test
90 public void testWithMockedMapReduceMultiRegion() throws Exception {
91 testWithMockedMapReduce(UTIL, "testWithMockedMapReduceMultiRegion", 10, 8);
92 }
93
94 @Test
95 public void testWithMapReduceSingleRegion() throws Exception {
96 testWithMapReduce(UTIL, "testWithMapReduceSingleRegion", 1, 1, false);
97 }
98
99 @Test
100 public void testWithMapReduceMultiRegion() throws Exception {
101 testWithMapReduce(UTIL, "testWithMapReduceMultiRegion", 10, 8, false);
102 }
103
104 @Test
105
106 public void testWithMapReduceAndOfflineHBaseMultiRegion() throws Exception {
107 testWithMapReduce(UTIL, "testWithMapReduceAndOfflineHBaseMultiRegion", 10, 8, true);
108 }
109
110
111 @Test
112 public void testRestoreSnapshotDoesNotCreateBackRefLinks() throws Exception {
113 setupCluster();
114 TableName tableName = TableName.valueOf("testRestoreSnapshotDoesNotCreateBackRefLinks");
115 String snapshotName = "foo";
116
117 try {
118 createTableAndSnapshot(UTIL, tableName, snapshotName, getStartRow(), getEndRow(), 1);
119
120 Path tmpTableDir = UTIL.getDataTestDirOnTestFS(snapshotName);
121
122 testRestoreSnapshotDoesNotCreateBackRefLinksInit(tableName, snapshotName,tmpTableDir);
123
124 Path rootDir = FSUtils.getRootDir(UTIL.getConfiguration());
125 for (Path regionDir : FSUtils.getRegionDirs(fs, FSUtils.getTableDir(rootDir, tableName))) {
126 for (Path storeDir : FSUtils.getFamilyDirs(fs, regionDir)) {
127 for (FileStatus status : fs.listStatus(storeDir)) {
128 System.out.println(status.getPath());
129 if (StoreFileInfo.isValid(status)) {
130 Path archiveStoreDir = HFileArchiveUtil.getStoreArchivePath(UTIL.getConfiguration(),
131 tableName, regionDir.getName(), storeDir.getName());
132
133 Path path = HFileLink.getBackReferencesDir(storeDir, status.getPath().getName());
134
135 assertFalse("There is a back reference in " + path, fs.exists(path));
136
137 path = HFileLink.getBackReferencesDir(archiveStoreDir, status.getPath().getName());
138
139 assertFalse("There is a back reference in " + path, fs.exists(path));
140 }
141 }
142 }
143 }
144 } finally {
145 UTIL.getHBaseAdmin().deleteSnapshot(snapshotName);
146 UTIL.deleteTable(tableName);
147 tearDownCluster();
148 }
149 }
150
151 public abstract void testRestoreSnapshotDoesNotCreateBackRefLinksInit(TableName tableName,
152 String snapshotName, Path tmpTableDir) throws Exception;
153
154 protected void testWithMapReduce(HBaseTestingUtility util, String snapshotName,
155 int numRegions, int expectedNumSplits, boolean shutdownCluster) throws Exception {
156 setupCluster();
157 util.startMiniMapReduceCluster();
158 try {
159 Path tableDir = util.getDataTestDirOnTestFS(snapshotName);
160 TableName tableName = TableName.valueOf("testWithMapReduce");
161 testWithMapReduceImpl(util, tableName, snapshotName, tableDir, numRegions,
162 expectedNumSplits, shutdownCluster);
163 } finally {
164 util.shutdownMiniMapReduceCluster();
165 tearDownCluster();
166 }
167 }
168
169 protected static void verifyRowFromMap(ImmutableBytesWritable key, Result result)
170 throws IOException {
171 byte[] row = key.get();
172 CellScanner scanner = result.cellScanner();
173 while (scanner.advance()) {
174 Cell cell = scanner.current();
175
176
177 Assert.assertEquals(0, Bytes.compareTo(row, 0, row.length,
178 cell.getRowArray(), cell.getRowOffset(), cell.getRowLength()));
179 }
180
181 for (int j = 0; j < FAMILIES.length; j++) {
182 byte[] actual = result.getValue(FAMILIES[j], null);
183 Assert.assertArrayEquals("Row in snapshot does not match, expected:" + Bytes.toString(row)
184 + " ,actual:" + Bytes.toString(actual), row, actual);
185 }
186 }
187
188 protected static void createTableAndSnapshot(HBaseTestingUtility util, TableName tableName,
189 String snapshotName, byte[] startRow, byte[] endRow, int numRegions)
190 throws Exception {
191 try {
192 util.deleteTable(tableName);
193 } catch(Exception ex) {
194
195 }
196
197 if (numRegions > 1) {
198 util.createTable(tableName, FAMILIES, 1, startRow, endRow, numRegions);
199 } else {
200 util.createTable(tableName, FAMILIES);
201 }
202 HBaseAdmin admin = util.getHBaseAdmin();
203
204
205 HTable table = new HTable(util.getConfiguration(), tableName);
206 util.loadTable(table, FAMILIES);
207
208 Path rootDir = FSUtils.getRootDir(util.getConfiguration());
209 FileSystem fs = rootDir.getFileSystem(util.getConfiguration());
210
211 SnapshotTestingUtils.createSnapshotAndValidate(admin, tableName,
212 Arrays.asList(FAMILIES), null, snapshotName, rootDir, fs, true);
213
214
215 byte[] value = Bytes.toBytes("after_snapshot_value");
216 util.loadTable(table, FAMILIES, value);
217
218
219 admin.flush(tableName.toString());
220 table.close();
221 }
222
223 }