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.backup.master;
019
020import static org.junit.Assert.assertEquals;
021
022import java.util.HashMap;
023import java.util.HashSet;
024import java.util.Map;
025import java.util.Set;
026import org.apache.hadoop.hbase.HBaseTestingUtil;
027import org.apache.hadoop.hbase.TableName;
028import org.apache.hadoop.hbase.backup.impl.BackupSystemTable;
029import org.apache.hadoop.hbase.client.Admin;
030import org.apache.hadoop.hbase.testclassification.MasterTests;
031import org.apache.hadoop.hbase.testclassification.MediumTests;
032import org.junit.AfterClass;
033import org.junit.BeforeClass;
034import org.junit.Test;
035import org.junit.experimental.categories.Category;
036
037@Category({ MasterTests.class, MediumTests.class })
038public class TestRestoreBackupSystemTable {
039  private static final String BACKUP_ROOT = "root";
040  private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();
041
042  @BeforeClass
043  public static void setUp() throws Exception {
044    UTIL.startMiniCluster();
045  }
046
047  @Test
048  public void itRestoresFromSnapshot() throws Exception {
049    BackupSystemTable table = new BackupSystemTable(UTIL.getConnection());
050    Set<TableName> tables = new HashSet<>();
051
052    tables.add(TableName.valueOf("test1"));
053    tables.add(TableName.valueOf("test2"));
054    tables.add(TableName.valueOf("test3"));
055
056    Map<String, Long> rsTimestampMap = new HashMap<>();
057    rsTimestampMap.put("rs1:100", 100L);
058    rsTimestampMap.put("rs2:100", 101L);
059    rsTimestampMap.put("rs3:100", 103L);
060
061    table.writeRegionServerLogTimestamp(tables, rsTimestampMap, BACKUP_ROOT);
062    BackupSystemTable.snapshot(UTIL.getConnection());
063
064    Admin admin = UTIL.getAdmin();
065    TableName backupSystemTn = BackupSystemTable.getTableName(UTIL.getConfiguration());
066    admin.disableTable(backupSystemTn);
067    admin.truncateTable(backupSystemTn, true);
068
069    BackupSystemTable.restoreFromSnapshot(UTIL.getConnection());
070    Map<TableName, Map<String, Long>> results = table.readLogTimestampMap(BACKUP_ROOT);
071
072    assertEquals(results.size(), tables.size());
073
074    for (TableName tableName : tables) {
075      Map<String, Long> resultMap = results.get(tableName);
076      assertEquals(resultMap, rsTimestampMap);
077    }
078  }
079
080  @AfterClass
081  public static void tearDown() throws Exception {
082    UTIL.shutdownMiniCluster();
083  }
084}