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.master;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021import static org.junit.jupiter.api.Assertions.assertFalse;
022
023import java.util.List;
024import org.apache.hadoop.fs.FileSystem;
025import org.apache.hadoop.fs.Path;
026import org.apache.hadoop.hbase.HBaseTestingUtil;
027import org.apache.hadoop.hbase.TableName;
028import org.apache.hadoop.hbase.client.Table;
029import org.apache.hadoop.hbase.regionserver.HRegion;
030import org.apache.hadoop.hbase.testclassification.MasterTests;
031import org.apache.hadoop.hbase.testclassification.MediumTests;
032import org.apache.hadoop.hbase.util.Bytes;
033import org.apache.hadoop.hbase.util.CommonFSUtils;
034import org.junit.jupiter.api.AfterAll;
035import org.junit.jupiter.api.BeforeAll;
036import org.junit.jupiter.api.BeforeEach;
037import org.junit.jupiter.api.Tag;
038import org.junit.jupiter.api.Test;
039import org.junit.jupiter.api.TestInfo;
040import org.slf4j.Logger;
041import org.slf4j.LoggerFactory;
042
043/**
044 * Test the master filesystem in a local cluster
045 */
046@Tag(MasterTests.TAG)
047@Tag(MediumTests.TAG)
048public class TestMasterFileSystem {
049  private String testMethodName;
050
051  @BeforeEach
052  public void setTestMethod(TestInfo testInfo) {
053    testMethodName = testInfo.getTestMethod().get().getName();
054  }
055
056  private static final Logger LOG = LoggerFactory.getLogger(TestMasterFileSystem.class);
057
058  private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();
059
060  @BeforeAll
061  public static void setupTest() throws Exception {
062    UTIL.startMiniCluster();
063  }
064
065  @AfterAll
066  public static void teardownTest() throws Exception {
067    UTIL.shutdownMiniCluster();
068  }
069
070  @Test
071  public void testFsUriSetProperly() throws Exception {
072    HMaster master = UTIL.getMiniHBaseCluster().getMaster();
073    MasterFileSystem fs = master.getMasterFileSystem();
074    Path masterRoot = CommonFSUtils.getRootDir(fs.getConfiguration());
075    Path rootDir = CommonFSUtils.getRootDir(fs.getFileSystem().getConf());
076    // make sure the fs and the found root dir have the same scheme
077    LOG.debug("from fs uri:" + FileSystem.getDefaultUri(fs.getFileSystem().getConf()));
078    LOG.debug("from configuration uri:" + FileSystem.getDefaultUri(fs.getConfiguration()));
079    // make sure the set uri matches by forcing it.
080    assertEquals(masterRoot, rootDir);
081  }
082
083  @Test
084  public void testCheckNoTempDir() throws Exception {
085    final MasterFileSystem masterFileSystem =
086      UTIL.getMiniHBaseCluster().getMaster().getMasterFileSystem();
087
088    final TableName tableName = TableName.valueOf(testMethodName);
089    final byte[] FAM = Bytes.toBytes("fam");
090    final byte[][] splitKeys =
091      new byte[][] { Bytes.toBytes("b"), Bytes.toBytes("c"), Bytes.toBytes("d") };
092
093    UTIL.createTable(tableName, FAM, splitKeys);
094
095    // get the current store files for the regions
096    List<HRegion> regions = UTIL.getHBaseCluster().getRegions(tableName);
097    // make sure we have 4 regions serving this table
098    assertEquals(4, regions.size());
099
100    // load the table
101    try (Table table = UTIL.getConnection().getTable(tableName)) {
102      UTIL.loadTable(table, FAM);
103    }
104
105    // disable the table so that we can manipulate the files
106    UTIL.getAdmin().disableTable(tableName);
107
108    final Path tempDir = masterFileSystem.getTempDir();
109    final Path tempNsDir = CommonFSUtils.getNamespaceDir(tempDir, tableName.getNamespaceAsString());
110    final FileSystem fs = masterFileSystem.getFileSystem();
111
112    // checks the temporary directory does not exist
113    assertFalse(fs.exists(tempNsDir));
114
115    UTIL.deleteTable(tableName);
116  }
117}