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.assertNotNull;
021import static org.junit.Assert.fail;
022
023import java.io.IOException;
024import org.apache.hadoop.conf.Configuration;
025import org.apache.hadoop.hbase.HBaseClassTestRule;
026import org.apache.hadoop.hbase.HBaseTestingUtility;
027import org.apache.hadoop.hbase.TableName;
028import org.apache.hadoop.hbase.client.Get;
029import org.apache.hadoop.hbase.client.Put;
030import org.apache.hadoop.hbase.client.Result;
031import org.apache.hadoop.hbase.client.Table;
032import org.apache.hadoop.hbase.testclassification.MediumTests;
033import org.apache.hadoop.hbase.testclassification.RegionServerTests;
034import org.apache.hadoop.hbase.util.Bytes;
035import org.junit.After;
036import org.junit.AfterClass;
037import org.junit.Before;
038import org.junit.BeforeClass;
039import org.junit.ClassRule;
040import org.junit.Rule;
041import org.junit.Test;
042import org.junit.experimental.categories.Category;
043import org.junit.rules.TestName;
044import org.slf4j.Logger;
045import org.slf4j.LoggerFactory;
046
047@Category({ RegionServerTests.class, MediumTests.class })
048public class TestDisabledWAL {
049
050  @ClassRule
051  public static final HBaseClassTestRule CLASS_RULE =
052    HBaseClassTestRule.forClass(TestDisabledWAL.class);
053
054  @Rule
055  public TestName name = new TestName();
056
057  private static final Logger LOG = LoggerFactory.getLogger(TestDisabledWAL.class);
058  static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
059  private Table table;
060  private TableName tableName;
061  private byte[] fam = Bytes.toBytes("f1");
062
063  @BeforeClass
064  public static void beforeClass() throws Exception {
065    Configuration conf = TEST_UTIL.getConfiguration();
066    conf.setBoolean("hbase.regionserver.hlog.enabled", false);
067    try {
068      TEST_UTIL.startMiniCluster();
069    } catch (RuntimeException | IOException e) {
070      LOG.error("Master failed to start.", e);
071      fail("Failed to start cluster. Reason being: " + e.getCause().getMessage());
072    }
073  }
074
075  @AfterClass
076  public static void afterClass() throws Exception {
077    TEST_UTIL.shutdownMiniCluster();
078  }
079
080  @Before
081  public void setup() throws Exception {
082    tableName = TableName.valueOf(name.getMethodName().replaceAll("[^a-zA-Z0-9]", "_"));
083    LOG.info("Creating table " + tableName);
084    table = TEST_UTIL.createTable(tableName, fam);
085  }
086
087  @After
088  public void cleanup() throws Exception {
089    LOG.info("Deleting table " + tableName);
090    TEST_UTIL.deleteTable(tableName);
091  }
092
093  @Test
094  public void testDisabledWAL() throws Exception {
095    LOG.info("Writing data to table " + tableName);
096    Put p = new Put(Bytes.toBytes("row"));
097    p.addColumn(fam, Bytes.toBytes("qual"), Bytes.toBytes("val"));
098    table.put(p);
099
100    LOG.info("Flushing table " + tableName);
101    TEST_UTIL.flush(tableName);
102
103    LOG.info("Getting data from table " + tableName);
104    Get get = new Get(Bytes.toBytes("row"));
105
106    Result result = table.get(get);
107    assertNotNull(result.getValue(fam, Bytes.toBytes("qual")));
108  }
109}