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.regionserver.wal;
019
020import java.io.IOException;
021import java.util.concurrent.CompletableFuture;
022import org.apache.hadoop.conf.Configuration;
023import org.apache.hadoop.fs.FileSystem;
024import org.apache.hadoop.fs.Path;
025import org.apache.hadoop.hbase.HBaseClassTestRule;
026import org.apache.hadoop.hbase.HConstants;
027import org.apache.hadoop.hbase.regionserver.RegionServerServices;
028import org.apache.hadoop.hbase.testclassification.SmallTests;
029import org.apache.hadoop.hbase.wal.WALProvider.AsyncWriter;
030import org.junit.AfterClass;
031import org.junit.BeforeClass;
032import org.junit.ClassRule;
033import org.junit.experimental.categories.Category;
034
035import org.apache.hbase.thirdparty.io.netty.channel.Channel;
036import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;
037import org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoopGroup;
038import org.apache.hbase.thirdparty.io.netty.channel.socket.nio.NioSocketChannel;
039
040@Category({ RegionServerServices.class, SmallTests.class })
041public class TestAsyncFSWALDurability extends WALDurabilityTestBase<CustomAsyncFSWAL> {
042
043  @ClassRule
044  public static final HBaseClassTestRule CLASS_RULE =
045    HBaseClassTestRule.forClass(TestAsyncFSWALDurability.class);
046
047  private static NioEventLoopGroup GROUP;
048
049  @BeforeClass
050  public static void setUpBeforeClass() {
051    GROUP = new NioEventLoopGroup();
052  }
053
054  @AfterClass
055  public static void tearDownAfterClass() throws Exception {
056    GROUP.shutdownGracefully().get();
057  }
058
059  @Override
060  protected CustomAsyncFSWAL getWAL(FileSystem fs, Path root, String logDir, Configuration conf)
061    throws IOException {
062    CustomAsyncFSWAL wal =
063      new CustomAsyncFSWAL(fs, root, logDir, conf, GROUP, NioSocketChannel.class);
064    wal.init();
065    return wal;
066  }
067
068  @Override
069  protected void resetSyncFlag(CustomAsyncFSWAL wal) {
070    wal.resetSyncFlag();
071  }
072
073  @Override
074  protected Boolean getSyncFlag(CustomAsyncFSWAL wal) {
075    return wal.getSyncFlag();
076  }
077
078  @Override
079  protected Boolean getWriterSyncFlag(CustomAsyncFSWAL wal) {
080    return wal.getWriterSyncFlag();
081  }
082}
083
084class CustomAsyncFSWAL extends AsyncFSWAL {
085
086  private Boolean syncFlag;
087
088  private Boolean writerSyncFlag;
089
090  public CustomAsyncFSWAL(FileSystem fs, Path rootDir, String logDir, Configuration conf,
091    EventLoopGroup eventLoopGroup, Class<? extends Channel> channelClass)
092    throws FailedLogCloseException, IOException {
093    super(fs, rootDir, logDir, HConstants.HREGION_OLDLOGDIR_NAME, conf, null, true, null, null,
094      eventLoopGroup, channelClass);
095  }
096
097  @Override
098  protected AsyncWriter createWriterInstance(Path path) throws IOException {
099    AsyncWriter writer = super.createWriterInstance(path);
100    return new AsyncWriter() {
101
102      @Override
103      public void close() throws IOException {
104        writer.close();
105      }
106
107      @Override
108      public long getLength() {
109        return writer.getLength();
110      }
111
112      @Override
113      public long getSyncedLength() {
114        return writer.getSyncedLength();
115      }
116
117      @Override
118      public CompletableFuture<Long> sync(boolean forceSync) {
119        writerSyncFlag = forceSync;
120        return writer.sync(forceSync);
121      }
122
123      @Override
124      public void append(Entry entry) {
125        writer.append(entry);
126      }
127    };
128  }
129
130  @Override
131  protected void doSync(boolean forceSync) throws IOException {
132    syncFlag = forceSync;
133    super.doSync(forceSync);
134  }
135
136  @Override
137  protected void doSync(long txid, boolean forceSync) throws IOException {
138    syncFlag = forceSync;
139    super.doSync(txid, forceSync);
140  }
141
142  void resetSyncFlag() {
143    this.syncFlag = null;
144    this.writerSyncFlag = null;
145  }
146
147  Boolean getSyncFlag() {
148    return syncFlag;
149  }
150
151  Boolean getWriterSyncFlag() {
152    return writerSyncFlag;
153  }
154}