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 static org.junit.Assert.assertEquals;
021
022import java.io.IOException;
023import org.apache.hadoop.conf.Configuration;
024import org.apache.hadoop.hbase.HBaseClassTestRule;
025import org.apache.hadoop.hbase.client.RegionInfo;
026import org.apache.hadoop.hbase.client.Table;
027import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper;
028import org.apache.hadoop.hbase.testclassification.LargeTests;
029import org.apache.hadoop.hbase.testclassification.VerySlowRegionServerTests;
030import org.apache.hadoop.hbase.wal.AsyncFSWALProvider;
031import org.apache.hadoop.hbase.wal.WALFactory;
032import org.apache.hadoop.hdfs.MiniDFSCluster.DataNodeProperties;
033import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
034import org.junit.BeforeClass;
035import org.junit.ClassRule;
036import org.junit.Test;
037import org.junit.experimental.categories.Category;
038
039@Category({ VerySlowRegionServerTests.class, LargeTests.class })
040public class TestAsyncLogRolling extends AbstractTestLogRolling {
041
042  @ClassRule
043  public static final HBaseClassTestRule CLASS_RULE =
044      HBaseClassTestRule.forClass(TestAsyncLogRolling.class);
045
046  @BeforeClass
047  public static void setUpBeforeClass() throws Exception {
048    Configuration conf = TestAsyncLogRolling.TEST_UTIL.getConfiguration();
049    conf.setInt(FanOutOneBlockAsyncDFSOutputHelper.ASYNC_DFS_OUTPUT_CREATE_MAX_RETRIES, 100);
050    conf.set(WALFactory.WAL_PROVIDER, "asyncfs");
051    AbstractTestLogRolling.setUpBeforeClass();
052  }
053
054  @Test
055  public void testLogRollOnDatanodeDeath() throws IOException, InterruptedException {
056    dfsCluster.startDataNodes(TEST_UTIL.getConfiguration(), 3, true, null, null);
057    tableName = getName();
058    Table table = createTestTable(tableName);
059    TEST_UTIL.waitUntilAllRegionsAssigned(table.getName());
060    doPut(table, 1);
061    server = TEST_UTIL.getRSForFirstRegionInTable(table.getName());
062    RegionInfo hri = server.getRegions(table.getName()).get(0).getRegionInfo();
063    AsyncFSWAL wal = (AsyncFSWAL) server.getWAL(hri);
064    int numRolledLogFiles = AsyncFSWALProvider.getNumRolledLogFiles(wal);
065    DatanodeInfo[] dnInfos = wal.getPipeline();
066    DataNodeProperties dnProp = TEST_UTIL.getDFSCluster().stopDataNode(dnInfos[0].getName());
067    TEST_UTIL.getDFSCluster().restartDataNode(dnProp);
068    doPut(table, 2);
069    assertEquals(numRolledLogFiles + 1, AsyncFSWALProvider.getNumRolledLogFiles(wal));
070  }
071}