hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystem.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.master;
  19
  20 import static org.junit.Assert.assertEquals;
  21 import static org.junit.Assert.assertFalse;
  22
  23 import java.util.List;
  24 import org.apache.hadoop.fs.FileSystem;
  25 import org.apache.hadoop.fs.Path;
  26 import org.apache.hadoop.hbase.HBaseClassTestRule;
  27 import org.apache.hadoop.hbase.HBaseTestingUtil;
  28 import org.apache.hadoop.hbase.TableName;
  29 import org.apache.hadoop.hbase.client.Table;
  30 import org.apache.hadoop.hbase.regionserver.HRegion;
  31 import org.apache.hadoop.hbase.testclassification.MasterTests;
  32 import org.apache.hadoop.hbase.testclassification.MediumTests;
  33 import org.apache.hadoop.hbase.util.Bytes;
  34 import org.apache.hadoop.hbase.util.CommonFSUtils;
  35 import org.junit.AfterClass;
  36 import org.junit.BeforeClass;
  37 import org.junit.ClassRule;
  38 import org.junit.Rule;
  39 import org.junit.Test;
  40 import org.junit.experimental.categories.Category;
  41 import org.junit.rules.TestName;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 /**
  46  * Test the master filesystem in a local cluster
  47  */
  48 @Category({MasterTests.class, MediumTests.class})
  49 public class TestMasterFileSystem {
  50
  51   @ClassRule
  52   public static final HBaseClassTestRule CLASS_RULE =
  53       HBaseClassTestRule.forClass(TestMasterFileSystem.class);
  54
  55   @Rule
  56   public TestName name = new TestName();
  57
  58   private static final Logger LOG = LoggerFactory.getLogger(TestMasterFileSystem.class);
  59
  60   private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();
  61
  62   @BeforeClass
  63   public static void setupTest() throws Exception {
  64     UTIL.startMiniCluster();
  65   }
  66
  67   @AfterClass
  68   public static void teardownTest() throws Exception {
  69     UTIL.shutdownMiniCluster();
  70   }
  71
  72   @Test
  73   public void testFsUriSetProperly() throws Exception {
  74     HMaster master = UTIL.getMiniHBaseCluster().getMaster();
  75     MasterFileSystem fs = master.getMasterFileSystem();
  76     Path masterRoot = CommonFSUtils.getRootDir(fs.getConfiguration());
  77     Path rootDir = CommonFSUtils.getRootDir(fs.getFileSystem().getConf());
  78     // make sure the fs and the found root dir have the same scheme
  79     LOG.debug("from fs uri:" + FileSystem.getDefaultUri(fs.getFileSystem().getConf()));
  80     LOG.debug("from configuration uri:" + FileSystem.getDefaultUri(fs.getConfiguration()));
  81     // make sure the set uri matches by forcing it.
  82     assertEquals(masterRoot, rootDir);
  83   }
  84
  85   @Test
  86   public void testCheckNoTempDir() throws Exception {
  87     final MasterFileSystem masterFileSystem =
  88       UTIL.getMiniHBaseCluster().getMaster().getMasterFileSystem();
  89
  90     final TableName tableName = TableName.valueOf(name.getMethodName());
  91     final byte[] FAM = Bytes.toBytes("fam");
  92     final byte[][] splitKeys = new byte[][] {
  93       Bytes.toBytes("b"), Bytes.toBytes("c"), Bytes.toBytes("d")
  94     };
  95
  96     UTIL.createTable(tableName, FAM, splitKeys);
  97
  98     // get the current store files for the regions
  99     List<HRegion> regions = UTIL.getHBaseCluster().getRegions(tableName);
 100     // make sure we have 4 regions serving this table
 101     assertEquals(4, regions.size());
 102
 103     // load the table
 104     try (Table table = UTIL.getConnection().getTable(tableName)) {
 105       UTIL.loadTable(table, FAM);
 106     }
 107
 108     // disable the table so that we can manipulate the files
 109     UTIL.getAdmin().disableTable(tableName);
 110
 111     final Path tempDir = masterFileSystem.getTempDir();
 112     final Path tempNsDir = CommonFSUtils.getNamespaceDir(tempDir,
 113       tableName.getNamespaceAsString());
 114     final FileSystem fs = masterFileSystem.getFileSystem();
 115
 116     // checks the temporary directory does not exist
 117     assertFalse(fs.exists(tempNsDir));
 118
 119     UTIL.deleteTable(tableName);
 120   }
 121 }