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 org.apache.hadoop.conf.Configuration;
022import org.apache.hadoop.fs.FileSystem;
023import org.apache.hadoop.fs.Path;
024import org.apache.hadoop.hbase.testclassification.MediumTests;
025import org.apache.hadoop.hbase.testclassification.RegionServerTests;
026import org.apache.hadoop.hbase.wal.WALProvider.Writer;
027import org.junit.jupiter.api.Tag;
028
029@Tag(RegionServerTests.TAG)
030@Tag(MediumTests.TAG)
031public class TestFSHLogDurability extends WALDurabilityTestBase<CustomFSHLog> {
032
033  @Override
034  protected CustomFSHLog getWAL0(FileSystem fs, Path root, String logDir, Configuration conf)
035    throws IOException {
036    CustomFSHLog wal = new CustomFSHLog(fs, root, logDir, conf);
037    wal.init();
038    return wal;
039  }
040
041  @Override
042  protected void resetSyncFlag(CustomFSHLog wal) {
043    wal.resetSyncFlag();
044  }
045
046  @Override
047  protected Boolean getSyncFlag(CustomFSHLog wal) {
048    return wal.getSyncFlag();
049  }
050
051  @Override
052  protected Boolean getWriterSyncFlag(CustomFSHLog wal) {
053    return wal.getWriterSyncFlag();
054  }
055}
056
057class CustomFSHLog extends FSHLog {
058  private Boolean syncFlag;
059
060  private Boolean writerSyncFlag;
061
062  public CustomFSHLog(FileSystem fs, Path root, String logDir, Configuration conf)
063    throws IOException {
064    super(fs, root, logDir, conf);
065  }
066
067  @Override
068  protected Writer createWriterInstance(FileSystem fs, Path path) throws IOException {
069    Writer writer = super.createWriterInstance(fs, path);
070    return new Writer() {
071
072      @Override
073      public void close() throws IOException {
074        writer.close();
075      }
076
077      @Override
078      public long getLength() {
079        return writer.getLength();
080      }
081
082      @Override
083      public long getSyncedLength() {
084        return writer.getSyncedLength();
085      }
086
087      @Override
088      public void sync(boolean forceSync) throws IOException {
089        writerSyncFlag = forceSync;
090        writer.sync(forceSync);
091      }
092
093      @Override
094      public void append(Entry entry) throws IOException {
095        writer.append(entry);
096      }
097    };
098  }
099
100  @Override
101  protected void doSync(boolean forceSync) throws IOException {
102    syncFlag = forceSync;
103    super.doSync(forceSync);
104  }
105
106  @Override
107  protected void doSync(long txid, boolean forceSync) throws IOException {
108    syncFlag = forceSync;
109    super.doSync(txid, forceSync);
110  }
111
112  void resetSyncFlag() {
113    this.syncFlag = null;
114    this.writerSyncFlag = null;
115  }
116
117  Boolean getSyncFlag() {
118    return syncFlag;
119  }
120
121  Boolean getWriterSyncFlag() {
122    return writerSyncFlag;
123  }
124}