1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 package org.apache.hadoop.hbase.master;
20
21 import static org.junit.Assert.*;
22
23 import java.io.IOException;
24 import java.io.StringWriter;
25 import java.util.HashSet;
26 import java.util.List;
27 import java.util.NavigableMap;
28 import java.util.Set;
29 import java.util.regex.Matcher;
30 import java.util.regex.Pattern;
31
32 import org.apache.hadoop.conf.Configuration;
33 import org.apache.hadoop.hbase.*;
34 import org.apache.hadoop.hbase.client.HBaseAdmin;
35 import org.apache.hadoop.hbase.testclassification.MediumTests;
36 import org.apache.hadoop.hbase.util.Bytes;
37 import org.apache.hadoop.hbase.zookeeper.MasterAddressTracker;
38 import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
39 import org.apache.hadoop.hbase.tmpl.master.AssignmentManagerStatusTmpl;
40 import org.apache.hadoop.hbase.tmpl.master.MasterStatusTmpl;
41 import org.junit.Before;
42 import org.junit.Test;
43 import org.junit.experimental.categories.Category;
44 import org.mockito.Mockito;
45
46 import com.google.common.collect.Lists;
47 import com.google.common.collect.Maps;
48
49
50
51
52 @Category(MediumTests.class)
53 public class TestMasterStatusServlet {
54
55 private HMaster master;
56 private Configuration conf;
57 private HBaseAdmin admin;
58
59 static final ServerName FAKE_HOST =
60 ServerName.valueOf("fakehost", 12345, 1234567890);
61 static final HTableDescriptor FAKE_TABLE =
62 new HTableDescriptor(TableName.valueOf("mytable"));
63 static final HRegionInfo FAKE_HRI =
64 new HRegionInfo(FAKE_TABLE.getTableName(),
65 Bytes.toBytes("a"), Bytes.toBytes("b"));
66
67 @Before
68 public void setupBasicMocks() {
69 conf = HBaseConfiguration.create();
70
71 master = Mockito.mock(HMaster.class);
72 Mockito.doReturn(FAKE_HOST).when(master).getServerName();
73 Mockito.doReturn(conf).when(master).getConfiguration();
74
75
76 DeadServer deadServer = Mockito.mock(DeadServer.class);
77
78 ServerManager serverManager = Mockito.mock(ServerManager.class);
79 Mockito.doReturn(1.0).when(serverManager).getAverageLoad();
80 Mockito.doReturn(serverManager).when(master).getServerManager();
81 Mockito.doReturn(deadServer).when(serverManager).getDeadServers();
82
83
84 AssignmentManager am = Mockito.mock(AssignmentManager.class);
85 RegionStates rs = Mockito.mock(RegionStates.class);
86 NavigableMap<String, RegionState> regionsInTransition =
87 Maps.newTreeMap();
88 regionsInTransition.put("r1",
89 new RegionState(FAKE_HRI, RegionState.State.CLOSING, 12345L, FAKE_HOST));
90 Mockito.doReturn(rs).when(am).getRegionStates();
91 Mockito.doReturn(regionsInTransition).when(rs).getRegionsInTransition();
92 Mockito.doReturn(am).when(master).getAssignmentManager();
93 Mockito.doReturn(serverManager).when(master).getServerManager();
94
95
96 ZooKeeperWatcher zkw = Mockito.mock(ZooKeeperWatcher.class);
97 Mockito.doReturn("fakequorum").when(zkw).getQuorum();
98 Mockito.doReturn(zkw).when(master).getZooKeeperWatcher();
99
100
101 MasterAddressTracker tracker = Mockito.mock(MasterAddressTracker.class);
102 Mockito.doReturn(tracker).when(master).getMasterAddressTracker();
103 Mockito.doReturn(FAKE_HOST).when(tracker).getMasterAddress();
104
105
106 admin = Mockito.mock(HBaseAdmin.class);
107 }
108
109 private void setupMockTables() throws IOException {
110 HTableDescriptor tables[] = new HTableDescriptor[] {
111 new HTableDescriptor(TableName.valueOf("foo")),
112 new HTableDescriptor(TableName.valueOf("bar"))
113 };
114 Mockito.doReturn(tables).when(admin).listTables();
115 }
116
117 @Test
118 public void testStatusTemplateNoTables() throws IOException {
119 new MasterStatusTmpl().render(new StringWriter(),
120 master, admin);
121 }
122
123 @Test
124 public void testStatusTemplateMetaAvailable() throws IOException {
125 setupMockTables();
126
127 new MasterStatusTmpl()
128 .setMetaLocation(ServerName.valueOf("metaserver:123,12345"))
129 .render(new StringWriter(),
130 master, admin);
131 }
132
133 @Test
134 public void testStatusTemplateWithServers() throws IOException {
135 setupMockTables();
136
137 List<ServerName> servers = Lists.newArrayList(
138 ServerName.valueOf("rootserver:123,12345"),
139 ServerName.valueOf("metaserver:123,12345"));
140 Set<ServerName> deadServers = new HashSet<ServerName>(
141 Lists.newArrayList(
142 ServerName.valueOf("badserver:123,12345"),
143 ServerName.valueOf("uglyserver:123,12345"))
144 );
145
146 new MasterStatusTmpl()
147 .setMetaLocation(ServerName.valueOf("metaserver:123,12345"))
148 .setServers(servers)
149 .setDeadServers(deadServers)
150 .render(new StringWriter(),
151 master, admin);
152 }
153
154 @Test
155 public void testAssignmentManagerTruncatedList() throws IOException {
156 AssignmentManager am = Mockito.mock(AssignmentManager.class);
157 RegionStates rs = Mockito.mock(RegionStates.class);
158
159
160 NavigableMap<String, RegionState> regionsInTransition =
161 Maps.newTreeMap();
162 for (byte i = 0; i < 100; i++) {
163 HRegionInfo hri = new HRegionInfo(FAKE_TABLE.getTableName(),
164 new byte[]{i}, new byte[]{(byte) (i+1)});
165 regionsInTransition.put(hri.getEncodedName(),
166 new RegionState(hri, RegionState.State.CLOSING, 12345L, FAKE_HOST));
167 }
168
169 regionsInTransition.put(
170 HRegionInfo.FIRST_META_REGIONINFO.getEncodedName(),
171 new RegionState(HRegionInfo.FIRST_META_REGIONINFO,
172 RegionState.State.CLOSING, 12345L, FAKE_HOST));
173 Mockito.doReturn(rs).when(am).getRegionStates();
174 Mockito.doReturn(regionsInTransition).when(rs).getRegionsInTransition();
175
176
177 StringWriter sw = new StringWriter();
178 new AssignmentManagerStatusTmpl()
179 .setLimit(50)
180 .render(sw, am);
181 String result = sw.toString();
182
183
184 assertTrue(result.contains(HRegionInfo.FIRST_META_REGIONINFO.getEncodedName()));
185
186
187 Matcher matcher = Pattern.compile("CLOSING").matcher(result);
188 int count = 0;
189 while (matcher.find()) {
190 count++;
191 }
192 assertEquals(50, count);
193 }
194
195 }
196