001/** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.wal; 019 020import static org.junit.Assert.assertEquals; 021import static org.junit.Assert.assertNotNull; 022import static org.junit.Assert.assertNotSame; 023import static org.junit.Assert.assertNull; 024import static org.junit.Assert.assertTrue; 025 026import java.io.IOException; 027import java.util.NavigableSet; 028import org.apache.hadoop.conf.Configuration; 029import org.apache.hadoop.fs.FSDataOutputStream; 030import org.apache.hadoop.fs.FileSystem; 031import org.apache.hadoop.fs.Path; 032import org.apache.hadoop.hbase.HBaseClassTestRule; 033import org.apache.hadoop.hbase.HBaseTestingUtility; 034import org.apache.hadoop.hbase.HConstants; 035import org.apache.hadoop.hbase.KeyValueTestUtil; 036import org.apache.hadoop.hbase.ServerName; 037import org.apache.hadoop.hbase.TableName; 038import org.apache.hadoop.hbase.testclassification.RegionServerTests; 039import org.apache.hadoop.hbase.testclassification.SmallTests; 040import org.apache.hadoop.hbase.util.Bytes; 041import org.apache.hadoop.hbase.util.FSUtils; 042import org.apache.hadoop.hbase.wal.WALSplitter.PipelineController; 043import org.apache.hadoop.hbase.wal.WALSplitter.RegionEntryBuffer; 044import org.junit.ClassRule; 045import org.junit.Test; 046import org.junit.experimental.categories.Category; 047 048/** 049 * Simple testing of a few WAL methods. 050 */ 051@Category({RegionServerTests.class, SmallTests.class}) 052public class TestWALMethods { 053 054 @ClassRule 055 public static final HBaseClassTestRule CLASS_RULE = 056 HBaseClassTestRule.forClass(TestWALMethods.class); 057 058 private static final byte[] TEST_REGION = Bytes.toBytes("test_region"); 059 private static final TableName TEST_TABLE = 060 TableName.valueOf("test_table"); 061 062 private final HBaseTestingUtility util = new HBaseTestingUtility(); 063 064 @Test 065 public void testServerNameFromWAL() throws Exception { 066 Path walPath = new Path("/hbase/WALs/regionserver-2.example.com,22101,1487767381290", 067 "regionserver-2.example.com%2C22101%2C1487767381290.null0.1487785392316"); 068 ServerName name = AbstractFSWALProvider.getServerNameFromWALDirectoryName(walPath); 069 assertEquals(ServerName.valueOf("regionserver-2.example.com", 22101, 1487767381290L), name); 070 } 071 072 @Test 073 public void testServerNameFromTestWAL() throws Exception { 074 Path walPath = new Path( 075 "/user/example/test-data/12ff1404-68c6-4715-a4b9-775e763842bc/WALs/TestWALRecordReader", 076 "TestWALRecordReader.default.1487787939118"); 077 ServerName name = AbstractFSWALProvider.getServerNameFromWALDirectoryName(walPath); 078 assertNull(name); 079 } 080 081 /** 082 * Assert that getSplitEditFilesSorted returns files in expected order and 083 * that it skips moved-aside files. 084 * @throws IOException 085 */ 086 @Test public void testGetSplitEditFilesSorted() throws IOException { 087 FileSystem fs = FileSystem.get(util.getConfiguration()); 088 Path regiondir = util.getDataTestDir("regiondir"); 089 fs.delete(regiondir, true); 090 fs.mkdirs(regiondir); 091 Path recoverededits = WALSplitUtil.getRegionDirRecoveredEditsDir(regiondir); 092 String first = WALSplitUtil.formatRecoveredEditsFileName(-1); 093 createFile(fs, recoverededits, first); 094 createFile(fs, recoverededits, WALSplitUtil.formatRecoveredEditsFileName(0)); 095 createFile(fs, recoverededits, WALSplitUtil.formatRecoveredEditsFileName(1)); 096 createFile(fs, recoverededits, WALSplitUtil 097 .formatRecoveredEditsFileName(11)); 098 createFile(fs, recoverededits, WALSplitUtil.formatRecoveredEditsFileName(2)); 099 createFile(fs, recoverededits, WALSplitUtil 100 .formatRecoveredEditsFileName(50)); 101 String last = WALSplitUtil.formatRecoveredEditsFileName(Long.MAX_VALUE); 102 createFile(fs, recoverededits, last); 103 createFile(fs, recoverededits, 104 Long.toString(Long.MAX_VALUE) + "." + System.currentTimeMillis()); 105 106 final Configuration walConf = new Configuration(util.getConfiguration()); 107 FSUtils.setRootDir(walConf, regiondir); 108 (new WALFactory(walConf, "dummyLogName")).getWAL(null); 109 110 NavigableSet<Path> files = WALSplitUtil.getSplitEditFilesSorted(fs, regiondir); 111 assertEquals(7, files.size()); 112 assertEquals(files.pollFirst().getName(), first); 113 assertEquals(files.pollLast().getName(), last); 114 assertEquals(files.pollFirst().getName(), 115 WALSplitUtil 116 .formatRecoveredEditsFileName(0)); 117 assertEquals(files.pollFirst().getName(), 118 WALSplitUtil 119 .formatRecoveredEditsFileName(1)); 120 assertEquals(files.pollFirst().getName(), 121 WALSplitUtil 122 .formatRecoveredEditsFileName(2)); 123 assertEquals(files.pollFirst().getName(), 124 WALSplitUtil 125 .formatRecoveredEditsFileName(11)); 126 } 127 128 private void createFile(final FileSystem fs, final Path testdir, 129 final String name) 130 throws IOException { 131 FSDataOutputStream fdos = fs.create(new Path(testdir, name), true); 132 fdos.close(); 133 } 134 135 @Test 136 public void testRegionEntryBuffer() throws Exception { 137 WALSplitter.RegionEntryBuffer reb = new WALSplitter.RegionEntryBuffer( 138 TEST_TABLE, TEST_REGION); 139 assertEquals(0, reb.heapSize()); 140 141 reb.appendEntry(createTestLogEntry(1)); 142 assertTrue(reb.heapSize() > 0); 143 } 144 145 @Test 146 public void testEntrySink() throws Exception { 147 EntryBuffers sink = new EntryBuffers(new PipelineController(), 1*1024*1024); 148 for (int i = 0; i < 1000; i++) { 149 WAL.Entry entry = createTestLogEntry(i); 150 sink.appendEntry(entry); 151 } 152 153 assertTrue(sink.totalBuffered > 0); 154 long amountInChunk = sink.totalBuffered; 155 // Get a chunk 156 RegionEntryBuffer chunk = sink.getChunkToWrite(); 157 assertEquals(chunk.heapSize(), amountInChunk); 158 159 // Make sure it got marked that a thread is "working on this" 160 assertTrue(sink.isRegionCurrentlyWriting(TEST_REGION)); 161 162 // Insert some more entries 163 for (int i = 0; i < 500; i++) { 164 WAL.Entry entry = createTestLogEntry(i); 165 sink.appendEntry(entry); 166 } 167 // Asking for another chunk shouldn't work since the first one 168 // is still writing 169 assertNull(sink.getChunkToWrite()); 170 171 // If we say we're done writing the first chunk, then we should be able 172 // to get the second 173 sink.doneWriting(chunk); 174 175 RegionEntryBuffer chunk2 = sink.getChunkToWrite(); 176 assertNotNull(chunk2); 177 assertNotSame(chunk, chunk2); 178 long amountInChunk2 = sink.totalBuffered; 179 // The second chunk had fewer rows than the first 180 assertTrue(amountInChunk2 < amountInChunk); 181 182 sink.doneWriting(chunk2); 183 assertEquals(0, sink.totalBuffered); 184 } 185 186 private WAL.Entry createTestLogEntry(int i) { 187 long seq = i; 188 long now = i * 1000; 189 190 WALEdit edit = new WALEdit(); 191 edit.add(KeyValueTestUtil.create("row", "fam", "qual", 1234, "val")); 192 WALKeyImpl key = new WALKeyImpl(TEST_REGION, TEST_TABLE, seq, now, 193 HConstants.DEFAULT_CLUSTER_ID); 194 WAL.Entry entry = new WAL.Entry(key, edit); 195 return entry; 196 } 197 198} 199