1   /**
2    *
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *     http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   */
19  package org.apache.hadoop.hbase.regionserver.wal;
20  
21  import static junit.framework.Assert.assertEquals;
22  
23  import java.io.IOException;
24  import java.util.List;
25  import java.util.Random;
26  import java.util.SortedMap;
27  import java.util.TreeMap;
28  
29  import org.apache.commons.logging.Log;
30  import org.apache.commons.logging.LogFactory;
31  import org.apache.hadoop.hbase.HBaseTestingUtility;
32  import org.apache.hadoop.hbase.MediumTests;
33  import org.apache.hadoop.hbase.client.Delete;
34  import org.apache.hadoop.hbase.client.HTable;
35  import org.apache.hadoop.hbase.client.Put;
36  import org.apache.hadoop.hbase.master.HMaster;
37  import org.apache.hadoop.hbase.regionserver.HRegion;
38  import org.apache.hadoop.hbase.regionserver.HRegionServer;
39  import org.apache.hadoop.hbase.util.Bytes;
40  import org.junit.After;
41  import org.junit.Before;
42  import org.junit.Test;
43  import org.junit.experimental.categories.Category;
44  
45  import com.google.common.collect.Lists;
46  import com.google.protobuf.ServiceException;
47  
48  @Category(MediumTests.class)
49  public class TestHLogFiltering {
50    private static final Log LOG = LogFactory.getLog(TestHLogFiltering.class);
51  
52    private static final int NUM_MASTERS = 1;
53    private static final int NUM_RS = 4;
54  
55    private static final byte[] TABLE_NAME = Bytes.toBytes("TestHLogFiltering");
56    private static final byte[] CF1 = Bytes.toBytes("MyCF1");
57    private static final byte[] CF2 = Bytes.toBytes("MyCF2");
58    private static final byte[][] FAMILIES = { CF1, CF2 };
59  
60    private HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
61  
62    @Before
63    public void setUp() throws Exception {
64      TEST_UTIL.startMiniCluster(NUM_MASTERS, NUM_RS);
65      fillTable();
66    }
67  
68    @After
69    public void tearDown() throws Exception {
70      TEST_UTIL.shutdownMiniCluster();
71    }
72  
73    private void fillTable() throws IOException, InterruptedException {
74      HTable table = TEST_UTIL.createTable(TABLE_NAME, FAMILIES, 3,
75          Bytes.toBytes("row0"), Bytes.toBytes("row99"), NUM_RS);
76      Random rand = new Random(19387129L);
77      for (int iStoreFile = 0; iStoreFile < 4; ++iStoreFile) {
78        for (int iRow = 0; iRow < 100; ++iRow) {
79          final byte[] row = Bytes.toBytes("row" + iRow);
80          Put put = new Put(row);
81          Delete del = new Delete(row);
82          for (int iCol = 0; iCol < 10; ++iCol) {
83            final byte[] cf = rand.nextBoolean() ? CF1 : CF2;
84            final long ts = rand.nextInt();
85            final byte[] qual = Bytes.toBytes("col" + iCol);
86            if (rand.nextBoolean()) {
87              final byte[] value = Bytes.toBytes("value_for_row_" + iRow +
88                  "_cf_" + Bytes.toStringBinary(cf) + "_col_" + iCol + "_ts_" +
89                  ts + "_random_" + rand.nextLong());
90              put.add(cf, qual, ts, value);
91            } else if (rand.nextDouble() < 0.8) {
92              del.deleteColumn(cf, qual, ts);
93            } else {
94              del.deleteColumns(cf, qual, ts);
95            }
96          }
97          table.put(put);
98          table.delete(del);
99          table.flushCommits();
100       }
101     }
102     TEST_UTIL.waitUntilAllRegionsAssigned(NUM_RS);
103   }
104 
105   @Test
106   public void testFlushedSequenceIdsSentToHMaster()
107   throws IOException, InterruptedException, ServiceException {
108     SortedMap<byte[], Long> allFlushedSequenceIds =
109         new TreeMap<byte[], Long>(Bytes.BYTES_COMPARATOR);
110     for (int i = 0; i < NUM_RS; ++i) {
111       flushAllRegions(i);
112     }
113     Thread.sleep(10000);
114     HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();
115     for (int i = 0; i < NUM_RS; ++i) {
116       for (byte[] regionName : getRegionsByServer(i)) {
117         if (allFlushedSequenceIds.containsKey(regionName)) {
118           assertEquals((long)allFlushedSequenceIds.get(regionName),
119               master.getLastFlushedSequenceId(regionName));
120         }
121       }
122     }
123   }
124 
125   private List<byte[]> getRegionsByServer(int rsId) throws IOException {
126     List<byte[]> regionNames = Lists.newArrayList();
127     HRegionServer hrs = getRegionServer(rsId);
128     for (HRegion r : hrs.getOnlineRegions(TABLE_NAME)) {
129       regionNames.add(r.getRegionName());
130     }
131     return regionNames;
132   }
133 
134   private HRegionServer getRegionServer(int rsId) {
135     return TEST_UTIL.getMiniHBaseCluster().getRegionServer(rsId);
136   }
137 
138   private void flushAllRegions(int rsId) throws IOException {
139     HRegionServer hrs = getRegionServer(rsId);
140     for (byte[] regionName : getRegionsByServer(rsId)) {
141       hrs.flushRegion(regionName);
142     }
143   }
144 
145   @org.junit.Rule
146   public org.apache.hadoop.hbase.ResourceCheckerJUnitRule cu =
147     new org.apache.hadoop.hbase.ResourceCheckerJUnitRule();
148 }