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19 package org.apache.hadoop.hbase.snapshot;
20
21 import com.google.common.collect.Lists;
22 import java.io.IOException;
23 import java.util.ArrayList;
24 import java.util.Collections;
25 import java.util.HashMap;
26 import java.util.List;
27 import java.util.Map;
28 import java.util.concurrent.atomic.AtomicBoolean;
29 import org.apache.hadoop.conf.Configuration;
30 import org.apache.hadoop.fs.FileStatus;
31 import org.apache.hadoop.fs.FileSystem;
32 import org.apache.hadoop.fs.Path;
33 import org.apache.hadoop.hbase.HBaseTestingUtility;
34 import org.apache.hadoop.hbase.TableName;
35 import org.apache.hadoop.hbase.client.Put;
36 import org.apache.hadoop.hbase.client.Table;
37 import org.apache.hadoop.hbase.master.HMaster;
38 import org.apache.hadoop.hbase.master.snapshot.SnapshotHFileCleaner;
39 import org.apache.hadoop.hbase.master.snapshot.SnapshotManager;
40 import org.apache.hadoop.hbase.testclassification.LargeTests;
41 import org.apache.hadoop.hbase.util.Bytes;
42 import org.apache.hadoop.hbase.util.FSUtils;
43 import org.apache.hadoop.hbase.util.FSVisitor;
44 import org.apache.hadoop.hbase.util.FSVisitor.StoreFileVisitor;
45 import org.junit.AfterClass;
46 import org.junit.Assert;
47 import org.junit.BeforeClass;
48 import org.junit.Test;
49 import org.junit.experimental.categories.Category;
50 import org.slf4j.Logger;
51 import org.slf4j.LoggerFactory;
52
53
54
55
56
57 @Category({ LargeTests.class })
58 public class TestSnapshotWhenChoreCleaning {
59
60 private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
61 private static final Configuration CONF = TEST_UTIL.getConfiguration();
62 private static final Logger LOG = LoggerFactory.getLogger(TestSnapshotClientRetries.class);
63 private static final TableName TABLE_NAME = TableName.valueOf("testTable");
64 private static final int MAX_SPLIT_KEYS_NUM = 100;
65 private static final byte[] FAMILY = Bytes.toBytes("family");
66 private static final byte[] QUALIFIER = Bytes.toBytes("qualifier");
67 private static final byte[] VALUE = Bytes.toBytes("value");
68 private static Table TABLE;
69
70 @BeforeClass
71 public static void setUp() throws Exception {
72
73 CONF.setInt("hbase.snapshot.thread.pool.max", 1);
74
75 CONF.setBoolean(SnapshotManager.HBASE_SNAPSHOT_ENABLED, true);
76
77 TEST_UTIL.startMiniCluster(3);
78
79 createTable();
80 }
81
82 private static byte[] integerToBytes(int i) {
83 return Bytes.toBytes(String.format("%06d", i));
84 }
85
86 private static void createTable() throws IOException {
87 byte[][] splitKeys = new byte[MAX_SPLIT_KEYS_NUM][];
88 for (int i = 0; i < splitKeys.length; i++) {
89 splitKeys[i] = integerToBytes(i);
90 }
91 TABLE = TEST_UTIL.createTable(TABLE_NAME, FAMILY, splitKeys);
92 }
93
94 @AfterClass
95 public static void tearDown() throws Exception {
96 TEST_UTIL.shutdownMiniCluster();
97 }
98
99 private static void loadDataAndFlush() throws IOException {
100 for (int i = 0; i < MAX_SPLIT_KEYS_NUM; i++) {
101 Put put = new Put(integerToBytes(i)).addColumn(FAMILY, QUALIFIER,
102 Bytes.add(VALUE, Bytes.toBytes(i)));
103 TABLE.put(put);
104 }
105 TEST_UTIL.flush(TABLE_NAME);
106 }
107
108 private static List<Path> listHFileNames(final FileSystem fs, final Path tableDir)
109 throws IOException {
110 final List<Path> hfiles = new ArrayList<>();
111 FSVisitor.visitTableStoreFiles(fs, tableDir, new StoreFileVisitor() {
112
113 @Override
114 public void storeFile(String region, String family, String hfileName) throws IOException {
115 hfiles.add(new Path(new Path(new Path(tableDir, region), family), hfileName));
116 }
117 });
118 Collections.sort(hfiles);
119 return hfiles;
120 }
121
122 private static boolean isAnySnapshots(FileSystem fs) throws IOException {
123 Path snapshotDir = SnapshotDescriptionUtils.getSnapshotsDir(FSUtils.getRootDir(CONF));
124 FileStatus[] snapFiles = fs.listStatus(snapshotDir);
125 if (snapFiles.length == 0) {
126 return false;
127 }
128 Path firstPath = snapFiles[0].getPath();
129 LOG.info("firstPath in isAnySnapshots: " + firstPath);
130 if (snapFiles.length == 1 && firstPath.getName().equals(".tmp")) {
131 FileStatus[] tmpSnapFiles = fs.listStatus(firstPath);
132 return tmpSnapFiles != null && tmpSnapFiles.length > 0;
133 }
134 return true;
135 }
136
137 @Test
138 public void testSnapshotWhenSnapshotHFileCleanerRunning() throws Exception {
139
140 loadDataAndFlush();
141
142 final SnapshotHFileCleaner cleaner = new SnapshotHFileCleaner();
143 Map<String, Object> params = new HashMap<String, Object>();
144 params.put(HMaster.MASTER, TEST_UTIL.getHBaseCluster().getMaster());
145 cleaner.init(params);
146 cleaner.setConf(CONF);
147
148 final FileSystem fs = FSUtils.getCurrentFileSystem(CONF);
149 List<Path> fileNames =
150 listHFileNames(fs, FSUtils.getTableDir(FSUtils.getRootDir(CONF), TABLE_NAME));
151 final List<FileStatus> files = new ArrayList<>();
152 for (Path fileName : fileNames) {
153 files.add(fs.getFileStatus(fileName));
154 }
155
156 TEST_UTIL.getHBaseAdmin().snapshot("snapshotName_prev", TABLE_NAME);
157 Assert.assertEquals(Lists.newArrayList(cleaner.getDeletableFiles(files)).size(), 0);
158 TEST_UTIL.getHBaseAdmin().deleteSnapshot("snapshotName_prev");
159 cleaner.getFileCacheForTesting().triggerCacheRefreshForTesting();
160 Assert.assertEquals(Lists.newArrayList(cleaner.getDeletableFiles(files)).size(), 100);
161
162 Runnable snapshotRunnable = new Runnable() {
163 @Override
164 public void run() {
165 try {
166
167 for (int k = 0; k < 5; k++) {
168 TEST_UTIL.getHBaseAdmin().snapshot("snapshotName_" + k, TABLE_NAME);
169 }
170 } catch (Exception e) {
171 LOG.error("Snapshot failed: ", e);
172 }
173 }
174 };
175 final AtomicBoolean success = new AtomicBoolean(true);
176 Runnable cleanerRunnable = new Runnable() {
177 @Override
178 public void run() {
179 try {
180 while (!isAnySnapshots(fs)) {
181 LOG.info("Not found any snapshot, sleep 100ms");
182 Thread.sleep(100);
183 }
184 for (int k = 0; k < 5; k++) {
185 cleaner.getFileCacheForTesting().triggerCacheRefreshForTesting();
186 Iterable<FileStatus> toDeleteFiles = cleaner.getDeletableFiles(files);
187 List<FileStatus> deletableFiles = Lists.newArrayList(toDeleteFiles);
188 LOG.info("Size of deletableFiles is: " + deletableFiles.size());
189 for (int i = 0; i < deletableFiles.size(); i++) {
190 LOG.debug("toDeleteFiles[{}] is: {}", i, deletableFiles.get(i));
191 }
192 if (deletableFiles.size() > 0) {
193 success.set(false);
194 }
195 }
196 } catch (Exception e) {
197 LOG.error("Chore cleaning failed: ", e);
198 }
199 }
200 };
201 Thread t1 = new Thread(snapshotRunnable);
202 t1.start();
203 Thread t2 = new Thread(cleanerRunnable);
204 t2.start();
205 t1.join();
206 t2.join();
207 Assert.assertTrue(success.get());
208 }
209 }