hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterNotCarryTable.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.assertFalse;
  21 import static org.junit.Assert.assertNull;
  22
  23 import org.apache.hadoop.conf.Configuration;
  24 import org.apache.hadoop.hbase.HBaseClassTestRule;
  25 import org.apache.hadoop.hbase.HBaseTestingUtility;
  26 import org.apache.hadoop.hbase.regionserver.ChunkCreator;
  27 import org.apache.hadoop.hbase.testclassification.MasterTests;
  28 import org.apache.hadoop.hbase.testclassification.MediumTests;
  29 import org.apache.hadoop.hbase.util.FSUtils;
  30 import org.junit.AfterClass;
  31 import org.junit.BeforeClass;
  32 import org.junit.ClassRule;
  33 import org.junit.Test;
  34 import org.junit.experimental.categories.Category;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 @Category({MasterTests.class, MediumTests.class})
  39 public class TestMasterNotCarryTable {
  40
  41   @ClassRule
  42   public static final HBaseClassTestRule CLASS_RULE =
  43       HBaseClassTestRule.forClass(TestMasterNotCarryTable.class);
  44
  45   private static final Logger LOG = LoggerFactory.getLogger(TestMasterNotCarryTable.class);
  46
  47   private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
  48
  49   private static HMaster master;
  50
  51   @BeforeClass
  52   public static void setUp() throws Exception {
  53     Configuration c = UTIL.getConfiguration();
  54     // We use local filesystem.  Set it so it writes into the testdir.
  55     FSUtils.setRootDir(c, UTIL.getDataTestDir());
  56     UTIL.startMiniZKCluster();
  57     master = new HMaster(UTIL.getConfiguration());
  58     master.start();
  59     // As no regionservers, only wait master to create AssignmentManager.
  60     while (master.getAssignmentManager() != null) {
  61       LOG.debug("Wait master to create AssignmentManager");
  62       Thread.sleep(1000);
  63     }
  64   }
  65
  66   @AfterClass
  67   public static void tearDown() throws Exception {
  68     master.stop("Shutdown");
  69     UTIL.shutdownMiniZKCluster();
  70   }
  71
  72   @Test
  73   public void testMasterNotCarryTable() {
  74     // The default config is false
  75     assertFalse(LoadBalancer.isTablesOnMaster(UTIL.getConfiguration()));
  76     assertFalse(LoadBalancer.isSystemTablesOnlyOnMaster(UTIL.getConfiguration()));
  77   }
  78
  79   @Test
  80   public void testMasterBlockCache() {
  81     // no need to instantiate block cache.
  82     assertFalse(master.getBlockCache().isPresent());
  83   }
  84
  85   @Test
  86   public void testMasterMOBFileCache() {
  87     // no need to instantiate mob file cache.
  88     assertFalse(master.getMobFileCache().isPresent());
  89   }
  90 }