Source code

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.rsgroup;
019
020import static org.junit.Assert.assertEquals;
021import static org.junit.Assert.assertFalse;
022import static org.junit.Assert.assertTrue;
023
024import java.io.IOException;
025import java.util.List;
026import java.util.Set;
027import org.apache.hadoop.hbase.HBaseClassTestRule;
028import org.apache.hadoop.hbase.NamespaceDescriptor;
029import org.apache.hadoop.hbase.ServerName;
030import org.apache.hadoop.hbase.TableName;
031import org.apache.hadoop.hbase.Waiter;
032import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
033import org.apache.hadoop.hbase.client.TableDescriptor;
034import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
035import org.apache.hadoop.hbase.net.Address;
036import org.apache.hadoop.hbase.quotas.QuotaTableUtil;
037import org.apache.hadoop.hbase.testclassification.MediumTests;
038import org.apache.hadoop.hbase.testclassification.RSGroupTests;
039import org.apache.hadoop.hbase.util.Bytes;
040import org.junit.After;
041import org.junit.AfterClass;
042import org.junit.Assert;
043import org.junit.Before;
044import org.junit.BeforeClass;
045import org.junit.ClassRule;
046import org.junit.Test;
047import org.junit.experimental.categories.Category;
048import org.slf4j.Logger;
049import org.slf4j.LoggerFactory;
050
051import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
052
053@Category({ RSGroupTests.class, MediumTests.class })
054public class TestRSGroupsBasics extends TestRSGroupsBase {
055
056  @ClassRule
057  public static final HBaseClassTestRule CLASS_RULE =
058    HBaseClassTestRule.forClass(TestRSGroupsBasics.class);
059
060  protected static final Logger LOG = LoggerFactory.getLogger(TestRSGroupsBasics.class);
061
062  @BeforeClass
063  public static void setUp() throws Exception {
064    setUpTestBeforeClass();
065  }
066
067  @AfterClass
068  public static void tearDown() throws Exception {
069    tearDownAfterClass();
070  }
071
072  @Before
073  public void beforeMethod() throws Exception {
074    setUpBeforeMethod();
075  }
076
077  @After
078  public void afterMethod() throws Exception {
079    tearDownAfterMethod();
080  }
081
082  @Test
083  public void testBasicStartUp() throws IOException {
084    RSGroupInfo defaultInfo = ADMIN.getRSGroup(RSGroupInfo.DEFAULT_GROUP);
085    assertEquals(NUM_SLAVES_BASE, defaultInfo.getServers().size());
086    // Assignment of meta and rsgroup regions.
087    int count = MASTER.getAssignmentManager().getRegionStates().getRegionAssignments().size();
088    LOG.info("regions assignments are"
089      + MASTER.getAssignmentManager().getRegionStates().getRegionAssignments().toString());
090    // 2 (meta and rsgroup)
091    assertEquals(2, count);
092  }
093
094  @Test
095  public void testCreateAndDrop() throws Exception {
096    TEST_UTIL.createTable(tableName, Bytes.toBytes("cf"));
097    // wait for created table to be assigned
098    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() {
099      @Override
100      public boolean evaluate() throws Exception {
101        return getTableRegionMap().get(tableName) != null;
102      }
103    });
104    TEST_UTIL.deleteTable(tableName);
105  }
106
107  @Test
108  public void testCreateMultiRegion() throws IOException {
109    byte[] end = { 1, 3, 5, 7, 9 };
110    byte[] start = { 0, 2, 4, 6, 8 };
111    byte[][] f = { Bytes.toBytes("f") };
112    TEST_UTIL.createTable(tableName, f, 1, start, end, 10);
113  }
114
115  @Test
116  public void testNamespaceCreateAndAssign() throws Exception {
117    LOG.info("testNamespaceCreateAndAssign");
118    String nsName = TABLE_PREFIX + "_foo";
119    final TableName tableName = TableName.valueOf(nsName, TABLE_PREFIX + "_testCreateAndAssign");
120    RSGroupInfo appInfo = addGroup("appInfo", 1);
121    ADMIN.createNamespace(NamespaceDescriptor.create(nsName)
122      .addConfiguration(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP, "appInfo").build());
123    final TableDescriptor desc = TableDescriptorBuilder.newBuilder(tableName)
124      .setColumnFamily(ColumnFamilyDescriptorBuilder.of("f")).build();
125    ADMIN.createTable(desc);
126    // wait for created table to be assigned
127    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() {
128      @Override
129      public boolean evaluate() throws Exception {
130        return getTableRegionMap().get(desc.getTableName()) != null;
131      }
132    });
133    ServerName targetServer = getServerName(appInfo.getServers().iterator().next());
134    // verify it was assigned to the right group
135    Assert.assertEquals(1, ADMIN.getRegions(targetServer).size());
136  }
137
138  @Test
139  public void testDefaultNamespaceCreateAndAssign() throws Exception {
140    LOG.info("testDefaultNamespaceCreateAndAssign");
141    String tableName = TABLE_PREFIX + "_testCreateAndAssign";
142    ADMIN.modifyNamespace(NamespaceDescriptor.create("default")
143      .addConfiguration(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP, "default").build());
144    final TableDescriptor desc = TableDescriptorBuilder.newBuilder(TableName.valueOf(tableName))
145      .setColumnFamily(ColumnFamilyDescriptorBuilder.of("f")).build();
146    ADMIN.createTable(desc);
147    // wait for created table to be assigned
148    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() {
149      @Override
150      public boolean evaluate() throws Exception {
151        return getTableRegionMap().get(desc.getTableName()) != null;
152      }
153    });
154  }
155
156  @Test
157  public void testCloneSnapshot() throws Exception {
158    byte[] FAMILY = Bytes.toBytes("test");
159    String snapshotName = tableName.getNameAsString() + "_snap";
160    TableName clonedTableName = TableName.valueOf(tableName.getNameAsString() + "_clone");
161
162    // create base table
163    TEST_UTIL.createTable(tableName, FAMILY);
164
165    // create snapshot
166    ADMIN.snapshot(snapshotName, tableName);
167
168    // clone
169    ADMIN.cloneSnapshot(snapshotName, clonedTableName);
170    ADMIN.deleteSnapshot(snapshotName);
171  }
172
173  @Test
174  public void testClearDeadServers() throws Exception {
175    LOG.info("testClearDeadServers");
176
177    // move region servers from default group to new group
178    final int serverCountToMoveToNewGroup = 3;
179    final RSGroupInfo newGroup =
180      addGroup(getGroupName(name.getMethodName()), serverCountToMoveToNewGroup);
181
182    // get the existing dead servers
183    NUM_DEAD_SERVERS = CLUSTER.getClusterMetrics().getDeadServerNames().size();
184
185    // stop 1 region server in new group
186    ServerName serverToStop = getServerName(newGroup.getServers().iterator().next());
187    try {
188      // stopping may cause an exception
189      // due to the connection loss
190      ADMIN.stopRegionServer(serverToStop.getAddress().toString());
191      NUM_DEAD_SERVERS++;
192    } catch (Exception e) {
193    }
194
195    // wait for stopped regionserver to dead server list
196    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() {
197      @Override
198      public boolean evaluate() throws Exception {
199        return CLUSTER.getClusterMetrics().getDeadServerNames().size() == NUM_DEAD_SERVERS
200          && !MASTER.getServerManager().areDeadServersInProgress();
201      }
202    });
203    assertFalse(CLUSTER.getClusterMetrics().getLiveServerMetrics().containsKey(serverToStop));
204    assertTrue(CLUSTER.getClusterMetrics().getDeadServerNames().contains(serverToStop));
205    assertTrue(newGroup.getServers().contains(serverToStop.getAddress()));
206
207    // clear dead servers list
208    List<ServerName> notClearedServers = ADMIN.clearDeadServers(Lists.newArrayList(serverToStop));
209    assertEquals(0, notClearedServers.size());
210
211    // the stopped region server gets cleared and removed from the group
212    Set<Address> newGroupServers = ADMIN.getRSGroup(newGroup.getName()).getServers();
213    assertFalse(newGroupServers.contains(serverToStop.getAddress()));
214    assertEquals(serverCountToMoveToNewGroup - 1 /* 1 stopped */, newGroupServers.size());
215  }
216
217  @Test
218  public void testClearNotProcessedDeadServer() throws Exception {
219    LOG.info("testClearNotProcessedDeadServer");
220
221    // get the existing dead servers
222    NUM_DEAD_SERVERS = CLUSTER.getClusterMetrics().getDeadServerNames().size();
223
224    // move region servers from default group to "dead server" group
225    final int serverCountToMoveToDeadServerGroup = 1;
226    RSGroupInfo deadServerGroup = addGroup("deadServerGroup", serverCountToMoveToDeadServerGroup);
227
228    // stop 1 region servers in "dead server" group
229    ServerName serverToStop = getServerName(deadServerGroup.getServers().iterator().next());
230    try {
231      // stopping may cause an exception
232      // due to the connection loss
233      ADMIN.stopRegionServer(serverToStop.getAddress().toString());
234      NUM_DEAD_SERVERS++;
235    } catch (Exception e) {
236    }
237    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() {
238      @Override
239      public boolean evaluate() throws Exception {
240        return CLUSTER.getClusterMetrics().getDeadServerNames().size() == NUM_DEAD_SERVERS;
241      }
242    });
243
244    Set<Address> ServersInDeadServerGroup =
245      ADMIN.getRSGroup(deadServerGroup.getName()).getServers();
246    assertEquals(serverCountToMoveToDeadServerGroup, ServersInDeadServerGroup.size());
247    assertTrue(ServersInDeadServerGroup.contains(serverToStop.getAddress()));
248  }
249
250  @Test
251  public void testRSGroupsWithHBaseQuota() throws Exception {
252    toggleQuotaCheckAndRestartMiniCluster(true);
253    TEST_UTIL.waitFor(90000, new Waiter.Predicate<Exception>() {
254      @Override
255      public boolean evaluate() throws Exception {
256        return ADMIN.isTableAvailable(QuotaTableUtil.QUOTA_TABLE_NAME);
257      }
258    });
259    toggleQuotaCheckAndRestartMiniCluster(false);
260  }
261}