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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.Admin;
30 import org.apache.hadoop.hbase.client.HTable;
31 import org.apache.hadoop.hbase.client.Result;
32 import org.apache.hadoop.hbase.client.Table;
33 import org.apache.hadoop.hbase.io.HFileLink;
34 import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
35 import org.apache.hadoop.hbase.master.snapshot.SnapshotManager;
36 import org.apache.hadoop.hbase.regionserver.StoreFileInfo;
37 import org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils;
38 import org.apache.hadoop.hbase.util.Bytes;
39 import org.apache.hadoop.hbase.util.FSUtils;
40 import org.apache.hadoop.hbase.util.HFileArchiveUtil;
41 import org.junit.Assert;
42 import org.junit.Test;
43
44 import static org.junit.Assert.assertFalse;
45
46 import java.io.IOException;
47 import java.util.Arrays;
48
49 public abstract class TableSnapshotInputFormatTestBase {
50
51 protected final HBaseTestingUtility UTIL = new HBaseTestingUtility();
52 protected static final int NUM_REGION_SERVERS = 2;
53 protected static final byte[][] FAMILIES = {Bytes.toBytes("f1"), Bytes.toBytes("f2")};
54
55 protected FileSystem fs;
56 protected Path rootDir;
57
58 public void setupCluster() throws Exception {
59 setupConf(UTIL.getConfiguration());
60 UTIL.startMiniCluster(NUM_REGION_SERVERS, true);
61 rootDir = UTIL.getHBaseCluster().getMaster().getMasterFileSystem().getRootDir();
62 fs = rootDir.getFileSystem(UTIL.getConfiguration());
63 }
64
65 public void tearDownCluster() throws Exception {
66 UTIL.shutdownMiniCluster();
67 }
68
69 private static void setupConf(Configuration conf) {
70
71 conf.setBoolean(SnapshotManager.HBASE_SNAPSHOT_ENABLED, true);
72 }
73
74 protected abstract void testWithMockedMapReduce(HBaseTestingUtility util, String snapshotName,
75 int numRegions, int expectedNumSplits) throws Exception;
76
77 protected abstract void testWithMapReduceImpl(HBaseTestingUtility util, TableName tableName,
78 String snapshotName, Path tableDir, int numRegions, int expectedNumSplits,
79 boolean shutdownCluster) throws Exception;
80
81 protected abstract byte[] getStartRow();
82
83 protected abstract byte[] getEndRow();
84
85 @Test
86 public void testWithMockedMapReduceSingleRegion() throws Exception {
87 testWithMockedMapReduce(UTIL, "testWithMockedMapReduceSingleRegion", 1, 1);
88 }
89
90 @Test
91 public void testWithMockedMapReduceMultiRegion() throws Exception {
92 testWithMockedMapReduce(UTIL, "testWithMockedMapReduceMultiRegion", 10, 8);
93 }
94
95 @Test
96 public void testWithMapReduceSingleRegion() throws Exception {
97 testWithMapReduce(UTIL, "testWithMapReduceSingleRegion", 1, 1, false);
98 }
99
100 @Test
101 public void testWithMapReduceMultiRegion() throws Exception {
102 testWithMapReduce(UTIL, "testWithMapReduceMultiRegion", 10, 8, false);
103 }
104
105 @Test
106
107 public void testWithMapReduceAndOfflineHBaseMultiRegion() throws Exception {
108 testWithMapReduce(UTIL, "testWithMapReduceAndOfflineHBaseMultiRegion", 10, 8, true);
109 }
110
111
112 @Test
113 public void testRestoreSnapshotDoesNotCreateBackRefLinks() throws Exception {
114 setupCluster();
115 TableName tableName = TableName.valueOf("testRestoreSnapshotDoesNotCreateBackRefLinks");
116 String snapshotName = "foo";
117
118 try {
119 createTableAndSnapshot(UTIL, tableName, snapshotName, getStartRow(), getEndRow(), 1);
120
121 Path tmpTableDir = UTIL.getDataTestDirOnTestFS(snapshotName);
122
123 testRestoreSnapshotDoesNotCreateBackRefLinksInit(tableName, snapshotName,tmpTableDir);
124
125 Path rootDir = FSUtils.getRootDir(UTIL.getConfiguration());
126 for (Path regionDir : FSUtils.getRegionDirs(fs, FSUtils.getTableDir(rootDir, tableName))) {
127 for (Path storeDir : FSUtils.getFamilyDirs(fs, regionDir)) {
128 for (FileStatus status : fs.listStatus(storeDir)) {
129 System.out.println(status.getPath());
130 if (StoreFileInfo.isValid(status)) {
131 Path archiveStoreDir = HFileArchiveUtil.getStoreArchivePath(UTIL.getConfiguration(),
132 tableName, regionDir.getName(), storeDir.getName());
133
134 Path path = HFileLink.getBackReferencesDir(storeDir, status.getPath().getName());
135
136 assertFalse("There is a back reference in " + path, fs.exists(path));
137
138 path = HFileLink.getBackReferencesDir(archiveStoreDir, status.getPath().getName());
139
140 assertFalse("There is a back reference in " + path, fs.exists(path));
141 }
142 }
143 }
144 }
145 } finally {
146 UTIL.getHBaseAdmin().deleteSnapshot(snapshotName);
147 UTIL.deleteTable(tableName);
148 tearDownCluster();
149 }
150 }
151
152 public abstract void testRestoreSnapshotDoesNotCreateBackRefLinksInit(TableName tableName,
153 String snapshotName, Path tmpTableDir) throws Exception;
154
155 protected void testWithMapReduce(HBaseTestingUtility util, String snapshotName,
156 int numRegions, int expectedNumSplits, boolean shutdownCluster) throws Exception {
157 setupCluster();
158 util.startMiniMapReduceCluster();
159 try {
160 Path tableDir = util.getDataTestDirOnTestFS(snapshotName);
161 TableName tableName = TableName.valueOf("testWithMapReduce");
162 testWithMapReduceImpl(util, tableName, snapshotName, tableDir, numRegions,
163 expectedNumSplits, shutdownCluster);
164 } finally {
165 util.shutdownMiniMapReduceCluster();
166 tearDownCluster();
167 }
168 }
169
170 protected static void verifyRowFromMap(ImmutableBytesWritable key, Result result)
171 throws IOException {
172 byte[] row = key.get();
173 CellScanner scanner = result.cellScanner();
174 while (scanner.advance()) {
175 Cell cell = scanner.current();
176
177
178 Assert.assertEquals(0, Bytes.compareTo(row, 0, row.length,
179 cell.getRowArray(), cell.getRowOffset(), cell.getRowLength()));
180 }
181
182 for (int j = 0; j < FAMILIES.length; j++) {
183 byte[] actual = result.getValue(FAMILIES[j], FAMILIES[j]);
184 Assert.assertArrayEquals("Row in snapshot does not match, expected:" + Bytes.toString(row)
185 + " ,actual:" + Bytes.toString(actual), row, actual);
186 }
187 }
188
189 protected static void createTableAndSnapshot(HBaseTestingUtility util, TableName tableName,
190 String snapshotName, byte[] startRow, byte[] endRow, int numRegions)
191 throws Exception {
192 try {
193 util.deleteTable(tableName);
194 } catch(Exception ex) {
195
196 }
197
198 if (numRegions > 1) {
199 util.createTable(tableName, FAMILIES, 1, startRow, endRow, numRegions);
200 } else {
201 util.createTable(tableName, FAMILIES);
202 }
203 Admin admin = util.getHBaseAdmin();
204
205
206 HTable table = new HTable(util.getConfiguration(), tableName);
207 util.loadTable(table, FAMILIES);
208
209 Path rootDir = FSUtils.getRootDir(util.getConfiguration());
210 FileSystem fs = rootDir.getFileSystem(util.getConfiguration());
211
212 SnapshotTestingUtils.createSnapshotAndValidate(admin, tableName,
213 Arrays.asList(FAMILIES), null, snapshotName, rootDir, fs, true);
214
215
216 byte[] value = Bytes.toBytes("after_snapshot_value");
217 util.loadTable(table, FAMILIES, value);
218
219
220 admin.flush(tableName);
221 table.close();
222 }
223
224 }