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.replication;
019
020import static org.junit.Assert.assertEquals;
021import static org.junit.Assert.fail;
022
023import java.io.IOException;
024import org.apache.hadoop.conf.Configuration;
025import org.apache.hadoop.fs.FileSystem;
026import org.apache.hadoop.fs.Path;
027import org.apache.hadoop.hbase.HBaseClassTestRule;
028import org.apache.hadoop.hbase.HBaseConfiguration;
029import org.apache.hadoop.hbase.HBaseTestingUtil;
030import org.apache.hadoop.hbase.HConstants;
031import org.apache.hadoop.hbase.TableName;
032import org.apache.hadoop.hbase.client.Admin;
033import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
034import org.apache.hadoop.hbase.client.Put;
035import org.apache.hadoop.hbase.client.Result;
036import org.apache.hadoop.hbase.client.ResultScanner;
037import org.apache.hadoop.hbase.client.Scan;
038import org.apache.hadoop.hbase.client.Table;
039import org.apache.hadoop.hbase.client.TableDescriptor;
040import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
041import org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication;
042import org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils;
043import org.apache.hadoop.hbase.testclassification.LargeTests;
044import org.apache.hadoop.hbase.testclassification.ReplicationTests;
045import org.apache.hadoop.hbase.util.Bytes;
046import org.apache.hadoop.hbase.util.CommonFSUtils;
047import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
048import org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster;
049import org.apache.hadoop.mapreduce.Job;
050import org.junit.AfterClass;
051import org.junit.Assert;
052import org.junit.BeforeClass;
053import org.junit.ClassRule;
054import org.junit.Test;
055import org.junit.experimental.categories.Category;
056import org.slf4j.Logger;
057import org.slf4j.LoggerFactory;
058
059import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList;
060import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableMap;
061
062@Category({ ReplicationTests.class, LargeTests.class })
063public class TestVerifyReplicationCrossDiffHdfs {
064  @ClassRule
065  public static final HBaseClassTestRule CLASS_RULE =
066    HBaseClassTestRule.forClass(TestVerifyReplicationCrossDiffHdfs.class);
067
068  private static final Logger LOG =
069    LoggerFactory.getLogger(TestVerifyReplicationCrossDiffHdfs.class);
070
071  private static HBaseTestingUtil util1;
072  private static HBaseTestingUtil util2;
073  private static HBaseTestingUtil mapReduceUtil = new HBaseTestingUtil();
074
075  private static Configuration conf1 = HBaseConfiguration.create();
076  private static Configuration conf2;
077
078  private static final byte[] FAMILY = Bytes.toBytes("f");
079  private static final byte[] QUALIFIER = Bytes.toBytes("q");
080  private static final String PEER_ID = "1";
081  private static final TableName TABLE_NAME = TableName.valueOf("testVerifyRepCrossDiffHDFS");
082
083  @BeforeClass
084  public static void setUpBeforeClass() throws Exception {
085    conf1.set(HConstants.ZOOKEEPER_ZNODE_PARENT, "/1");
086    util1 = new HBaseTestingUtil(conf1);
087    util1.startMiniZKCluster();
088    MiniZooKeeperCluster miniZK = util1.getZkCluster();
089    conf1 = util1.getConfiguration();
090
091    conf2 = HBaseConfiguration.create(conf1);
092    conf2.set(HConstants.ZOOKEEPER_ZNODE_PARENT, "/2");
093    util2 = new HBaseTestingUtil(conf2);
094    util2.setZkCluster(miniZK);
095
096    util1.startMiniCluster();
097    util2.startMiniCluster();
098
099    createTestingTable(util1.getAdmin());
100    createTestingTable(util2.getAdmin());
101    addTestingPeer();
102
103    LOG.info("Start to load some data to source cluster.");
104    loadSomeData();
105
106    LOG.info("Start mini MapReduce cluster.");
107    mapReduceUtil.setZkCluster(miniZK);
108    mapReduceUtil.startMiniMapReduceCluster();
109  }
110
111  private static void createTestingTable(Admin admin) throws IOException {
112    TableDescriptor table = TableDescriptorBuilder.newBuilder(TABLE_NAME)
113      .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(FAMILY).setMaxVersions(100)
114        .setScope(HConstants.REPLICATION_SCOPE_GLOBAL).build())
115      .build();
116    admin.createTable(table);
117  }
118
119  private static void addTestingPeer() throws IOException {
120    ReplicationPeerConfig rpc = ReplicationPeerConfig.newBuilder()
121      .setClusterKey(util2.getClusterKey()).setReplicateAllUserTables(false)
122      .setTableCFsMap(ImmutableMap.of(TABLE_NAME, ImmutableList.of())).build();
123    util1.getAdmin().addReplicationPeer(PEER_ID, rpc);
124  }
125
126  private static void loadSomeData() throws IOException, InterruptedException {
127    int numOfRows = 10;
128    try (Table table = util1.getConnection().getTable(TABLE_NAME)) {
129      for (int i = 0; i < numOfRows; i++) {
130        table.put(new Put(Bytes.toBytes(i)).addColumn(FAMILY, QUALIFIER, Bytes.toBytes(i)));
131      }
132    }
133    // Wait some time until the peer received those rows.
134    Result[] results = null;
135    try (Table table = util2.getConnection().getTable(TABLE_NAME)) {
136      for (int i = 0; i < 100; i++) {
137        try (ResultScanner rs = table.getScanner(new Scan())) {
138          results = rs.next(numOfRows);
139          if (results == null || results.length < numOfRows) {
140            LOG.info("Retrying, wait until the peer received all the rows, currentRows:"
141              + (results == null ? 0 : results.length));
142            Thread.sleep(100);
143          }
144        }
145      }
146    }
147    Assert.assertNotNull(results);
148    Assert.assertEquals(10, results.length);
149  }
150
151  @AfterClass
152  public static void tearDownClass() throws Exception {
153    if (mapReduceUtil != null) {
154      mapReduceUtil.shutdownMiniCluster();
155    }
156    if (util2 != null) {
157      util2.shutdownMiniCluster();
158    }
159    if (util1 != null) {
160      util1.shutdownMiniCluster();
161    }
162  }
163
164  @Test
165  public void testVerifyRepBySnapshot() throws Exception {
166    Path rootDir = CommonFSUtils.getRootDir(conf1);
167    FileSystem fs = rootDir.getFileSystem(conf1);
168    String sourceSnapshotName = "sourceSnapshot-" + EnvironmentEdgeManager.currentTime();
169    SnapshotTestingUtils.createSnapshotAndValidate(util1.getAdmin(), TABLE_NAME,
170      Bytes.toString(FAMILY), sourceSnapshotName, rootDir, fs, true);
171
172    // Take target snapshot
173    Path peerRootDir = CommonFSUtils.getRootDir(conf2);
174    FileSystem peerFs = peerRootDir.getFileSystem(conf2);
175    String peerSnapshotName = "peerSnapshot-" + EnvironmentEdgeManager.currentTime();
176    SnapshotTestingUtils.createSnapshotAndValidate(util2.getAdmin(), TABLE_NAME,
177      Bytes.toString(FAMILY), peerSnapshotName, peerRootDir, peerFs, true);
178
179    String peerFSAddress = peerFs.getUri().toString();
180    String temPath1 = new Path(fs.getUri().toString(), "/tmp1").toString();
181    String temPath2 = "/tmp2";
182
183    String[] args = new String[] { "--sourceSnapshotName=" + sourceSnapshotName,
184      "--sourceSnapshotTmpDir=" + temPath1, "--peerSnapshotName=" + peerSnapshotName,
185      "--peerSnapshotTmpDir=" + temPath2, "--peerFSAddress=" + peerFSAddress,
186      "--peerHBaseRootAddress=" + CommonFSUtils.getRootDir(conf2), PEER_ID, TABLE_NAME.toString() };
187
188    // Use the yarn's config override the source cluster's config.
189    Configuration newConf = HBaseConfiguration.create(conf1);
190    HBaseConfiguration.merge(newConf, mapReduceUtil.getConfiguration());
191    newConf.set(HConstants.ZOOKEEPER_ZNODE_PARENT, "/1");
192    CommonFSUtils.setRootDir(newConf, CommonFSUtils.getRootDir(conf1));
193    Job job = new VerifyReplication().createSubmittableJob(newConf, args);
194    if (job == null) {
195      fail("Job wasn't created, see the log");
196    }
197    if (!job.waitForCompletion(true)) {
198      fail("Job failed, see the log");
199    }
200    assertEquals(10,
201      job.getCounters().findCounter(VerifyReplication.Verifier.Counters.GOODROWS).getValue());
202    assertEquals(0,
203      job.getCounters().findCounter(VerifyReplication.Verifier.Counters.BADROWS).getValue());
204  }
205}