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18 package org.apache.hadoop.hbase.regionserver;
19
20 import static org.junit.Assert.*;
21
22 import java.io.IOException;
23 import java.util.ArrayList;
24 import java.util.List;
25
26 import org.apache.commons.logging.Log;
27 import org.apache.commons.logging.LogFactory;
28 import org.apache.hadoop.hbase.HBaseTestingUtility;
29 import org.apache.hadoop.hbase.HColumnDescriptor;
30 import org.apache.hadoop.hbase.HRegionInfo;
31 import org.apache.hadoop.hbase.HTableDescriptor;
32 import org.apache.hadoop.hbase.MiniHBaseCluster;
33 import org.apache.hadoop.hbase.TableName;
34 import org.apache.hadoop.hbase.client.Admin;
35 import org.apache.hadoop.hbase.client.HTable;
36 import org.apache.hadoop.hbase.client.Put;
37 import org.apache.hadoop.hbase.client.Result;
38 import org.apache.hadoop.hbase.client.ResultScanner;
39 import org.apache.hadoop.hbase.client.Scan;
40 import org.apache.hadoop.hbase.client.Table;
41 import org.apache.hadoop.hbase.master.HMaster;
42 import org.apache.hadoop.hbase.util.Bytes;
43 import org.apache.hadoop.hbase.testclassification.MediumTests;
44 import org.junit.Test;
45 import org.junit.experimental.categories.Category;
46
47
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51
52 @Category(MediumTests.class)
53 public class TestHRegionOnCluster {
54
55 private static final Log LOG = LogFactory.getLog(TestHRegionOnCluster.class);
56 private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
57
58 @Test (timeout=300000)
59 public void testDataCorrectnessReplayingRecoveredEdits() throws Exception {
60 final int NUM_MASTERS = 1;
61 final int NUM_RS = 3;
62 Admin hbaseAdmin = null;
63 TEST_UTIL.startMiniCluster(NUM_MASTERS, NUM_RS);
64
65 try {
66 final TableName TABLENAME = TableName.valueOf("testDataCorrectnessReplayingRecoveredEdits");
67 final byte[] FAMILY = Bytes.toBytes("family");
68 MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();
69 HMaster master = cluster.getMaster();
70
71
72 HTableDescriptor desc = new HTableDescriptor(TABLENAME);
73 desc.addFamily(new HColumnDescriptor(FAMILY));
74 hbaseAdmin = master.getConnection().getAdmin();
75 hbaseAdmin.createTable(desc);
76
77 assertTrue(hbaseAdmin.isTableAvailable(TABLENAME));
78
79
80 LOG.info("Loading r1 to v1 into " + TABLENAME);
81 HTable table = new HTable(TEST_UTIL.getConfiguration(), TABLENAME);
82 putDataAndVerify(table, "r1", FAMILY, "v1", 1);
83
84 TEST_UTIL.waitUntilAllRegionsAssigned(table.getName());
85
86 HRegionInfo regionInfo = table.getRegionLocation("r1").getRegionInfo();
87 int originServerNum = cluster.getServerWith(regionInfo.getRegionName());
88 HRegionServer originServer = cluster.getRegionServer(originServerNum);
89 int targetServerNum = (originServerNum + 1) % NUM_RS;
90 HRegionServer targetServer = cluster.getRegionServer(targetServerNum);
91 assertFalse(originServer.equals(targetServer));
92
93 TEST_UTIL.waitUntilAllRegionsAssigned(table.getName());
94 LOG.info("Moving " + regionInfo.getEncodedName() + " to " + targetServer.getServerName());
95 hbaseAdmin.move(regionInfo.getEncodedNameAsBytes(),
96 Bytes.toBytes(targetServer.getServerName().getServerName()));
97 do {
98 Thread.sleep(1);
99 } while (cluster.getServerWith(regionInfo.getRegionName()) == originServerNum);
100
101
102 LOG.info("Loading r2 to v2 into " + TABLENAME);
103 putDataAndVerify(table, "r2", FAMILY, "v2", 2);
104
105 TEST_UTIL.waitUntilAllRegionsAssigned(table.getName());
106
107 LOG.info("Moving " + regionInfo.getEncodedName() + " to " + originServer.getServerName());
108 hbaseAdmin.move(regionInfo.getEncodedNameAsBytes(),
109 Bytes.toBytes(originServer.getServerName().getServerName()));
110 do {
111 Thread.sleep(1);
112 } while (cluster.getServerWith(regionInfo.getRegionName()) == targetServerNum);
113
114
115 LOG.info("Loading r3 to v3 into " + TABLENAME);
116 putDataAndVerify(table, "r3", FAMILY, "v3", 3);
117
118
119 LOG.info("Killing target server " + targetServer.getServerName());
120 targetServer.kill();
121 cluster.getRegionServerThreads().get(targetServerNum).join();
122
123 while (master.getServerManager().areDeadServersInProgress()) {
124 Thread.sleep(5);
125 }
126
127 LOG.info("Killing origin server " + targetServer.getServerName());
128 originServer.kill();
129 cluster.getRegionServerThreads().get(originServerNum).join();
130
131
132 LOG.info("Loading r4 to v4 into " + TABLENAME);
133 putDataAndVerify(table, "r4", FAMILY, "v4", 4);
134
135 } finally {
136 if (hbaseAdmin != null) hbaseAdmin.close();
137 TEST_UTIL.shutdownMiniCluster();
138 }
139 }
140
141 private void putDataAndVerify(Table table, String row, byte[] family,
142 String value, int verifyNum) throws IOException {
143 System.out.println("=========Putting data :" + row);
144 Put put = new Put(Bytes.toBytes(row));
145 put.add(family, Bytes.toBytes("q1"), Bytes.toBytes(value));
146 table.put(put);
147 ResultScanner resultScanner = table.getScanner(new Scan());
148 List<Result> results = new ArrayList<Result>();
149 while (true) {
150 Result r = resultScanner.next();
151 if (r == null)
152 break;
153 results.add(r);
154 }
155 resultScanner.close();
156 if (results.size() != verifyNum) {
157 System.out.println(results);
158 }
159 assertEquals(verifyNum, results.size());
160 }
161
162 }