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.client;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021import static org.junit.jupiter.api.Assertions.fail;
022
023import java.io.IOException;
024import java.util.HashSet;
025import java.util.Set;
026import org.apache.hadoop.fs.Path;
027import org.apache.hadoop.hbase.TableName;
028import org.apache.hadoop.hbase.master.MasterFileSystem;
029import org.apache.hadoop.hbase.regionserver.NoSuchColumnFamilyException;
030import org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils;
031import org.apache.hadoop.hbase.util.Bytes;
032import org.apache.hadoop.hbase.util.CommonFSUtils;
033import org.apache.hadoop.hbase.util.FSUtils;
034import org.junit.jupiter.api.TestTemplate;
035
036public class RestoreSnapshotFromClientSchemaChangeTestBase
037  extends RestoreSnapshotFromClientTestBase {
038
039  protected RestoreSnapshotFromClientSchemaChangeTestBase(int numReplicas) {
040    super(numReplicas);
041  }
042
043  private Set<String> getFamiliesFromFS(final TableName tableName) throws IOException {
044    MasterFileSystem mfs = TEST_UTIL.getMiniHBaseCluster().getMaster().getMasterFileSystem();
045    Set<String> families = new HashSet<>();
046    Path tableDir = CommonFSUtils.getTableDir(mfs.getRootDir(), tableName);
047    for (Path regionDir : FSUtils.getRegionDirs(mfs.getFileSystem(), tableDir)) {
048      for (Path familyDir : FSUtils.getFamilyDirs(mfs.getFileSystem(), regionDir)) {
049        families.add(familyDir.getName());
050      }
051    }
052    return families;
053  }
054
055  protected ColumnFamilyDescriptor getTestRestoreSchemaChangeHCD() {
056    return ColumnFamilyDescriptorBuilder.of(TEST_FAMILY2);
057  }
058
059  @TestTemplate
060  public void testRestoreSchemaChange() throws Exception {
061    Table table = TEST_UTIL.getConnection().getTable(tableName);
062
063    // Add one column family and put some data in it
064    admin.disableTable(tableName);
065    admin.addColumnFamily(tableName, getTestRestoreSchemaChangeHCD());
066    admin.enableTable(tableName);
067    assertEquals(2, table.getDescriptor().getColumnFamilyCount());
068    TableDescriptor htd = admin.getDescriptor(tableName);
069    assertEquals(2, htd.getColumnFamilyCount());
070    SnapshotTestingUtils.loadData(TEST_UTIL, tableName, 500, TEST_FAMILY2);
071    long snapshot2Rows = snapshot1Rows + 500L;
072    assertEquals(snapshot2Rows, countRows(table));
073    assertEquals(500, countRows(table, TEST_FAMILY2));
074    Set<String> fsFamilies = getFamiliesFromFS(tableName);
075    assertEquals(2, fsFamilies.size());
076
077    // Take a snapshot
078    admin.disableTable(tableName);
079    admin.snapshot(snapshotName2, tableName);
080
081    // Restore the snapshot (without the cf)
082    admin.restoreSnapshot(snapshotName0);
083    admin.enableTable(tableName);
084    assertEquals(1, table.getDescriptor().getColumnFamilyCount());
085    try {
086      countRows(table, TEST_FAMILY2);
087      fail("family '" + Bytes.toString(TEST_FAMILY2) + "' should not exists");
088    } catch (NoSuchColumnFamilyException e) {
089      // expected
090    }
091    assertEquals(snapshot0Rows, countRows(table));
092    htd = admin.getDescriptor(tableName);
093    assertEquals(1, htd.getColumnFamilyCount());
094    fsFamilies = getFamiliesFromFS(tableName);
095    assertEquals(1, fsFamilies.size());
096
097    // Restore back the snapshot (with the cf)
098    admin.disableTable(tableName);
099    admin.restoreSnapshot(snapshotName2);
100    admin.enableTable(tableName);
101    htd = admin.getDescriptor(tableName);
102    assertEquals(2, htd.getColumnFamilyCount());
103    assertEquals(2, table.getDescriptor().getColumnFamilyCount());
104    assertEquals(500, countRows(table, TEST_FAMILY2));
105    assertEquals(snapshot2Rows, countRows(table));
106    fsFamilies = getFamiliesFromFS(tableName);
107    assertEquals(2, fsFamilies.size());
108    table.close();
109  }
110}