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19 package org.apache.hadoop.hbase.master;
20
21 import static org.junit.Assert.assertEquals;
22 import static org.junit.Assert.assertTrue;
23
24 import java.util.List;
25 import java.util.NavigableSet;
26
27 import org.apache.commons.logging.Log;
28 import org.apache.commons.logging.LogFactory;
29 import org.apache.hadoop.conf.Configuration;
30 import org.apache.hadoop.hbase.HBaseConfiguration;
31 import org.apache.hadoop.hbase.HBaseTestingUtility;
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.HBaseAdmin;
36 import org.apache.hadoop.hbase.client.HTable;
37 import org.apache.hadoop.hbase.client.RegionLocator;
38 import org.apache.hadoop.hbase.protobuf.generated.ZooKeeperProtos;
39 import org.apache.hadoop.hbase.testclassification.LargeTests;
40 import org.apache.hadoop.hbase.util.Bytes;
41 import org.apache.hadoop.hbase.util.JVMClusterUtil.MasterThread;
42 import org.apache.hadoop.hbase.zookeeper.ZKAssign;
43 import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
44 import org.apache.zookeeper.KeeperException;
45 import org.junit.Test;
46 import org.junit.experimental.categories.Category;
47
48 @Category(LargeTests.class)
49 public class TestMasterRestartAfterDisablingTable {
50
51 private static final Log LOG = LogFactory.getLog(TestMasterRestartAfterDisablingTable.class);
52
53 @Test
54 public void testForCheckingIfEnableAndDisableWorksFineAfterSwitch()
55 throws Exception {
56 final int NUM_MASTERS = 2;
57 final int NUM_RS = 1;
58 final int NUM_REGIONS_TO_CREATE = 4;
59
60
61 log("Starting cluster");
62 Configuration conf = HBaseConfiguration.create();
63 HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(conf);
64 TEST_UTIL.startMiniCluster(NUM_MASTERS, NUM_RS);
65 MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();
66 log("Waiting for active/ready master");
67 cluster.waitForActiveAndReadyMaster();
68 ZooKeeperWatcher zkw = new ZooKeeperWatcher(conf, "testmasterRestart", null);
69 HMaster master = cluster.getMaster();
70
71
72 TableName table = TableName.valueOf("tableRestart");
73 byte[] family = Bytes.toBytes("family");
74 log("Creating table with " + NUM_REGIONS_TO_CREATE + " regions");
75 HTable ht = TEST_UTIL.createMultiRegionTable(table, family, NUM_REGIONS_TO_CREATE);
76 int numRegions = -1;
77 try (RegionLocator r = ht.getRegionLocator()) {
78 numRegions = r.getStartKeys().length;
79 }
80 numRegions += 1;
81 log("Waiting for no more RIT\n");
82 blockUntilNoRIT(zkw, master);
83 log("Disabling table\n");
84 TEST_UTIL.getHBaseAdmin().disableTable(table);
85
86 NavigableSet<String> regions = HBaseTestingUtility.getAllOnlineRegions(cluster);
87 assertEquals(
88 "The number of regions for the table tableRestart should be 0 and only"
89 + "the catalog and namespace tables should be present.", 2, regions.size());
90
91 List<MasterThread> masterThreads = cluster.getMasterThreads();
92 MasterThread activeMaster = null;
93 if (masterThreads.get(0).getMaster().isActiveMaster()) {
94 activeMaster = masterThreads.get(0);
95 } else {
96 activeMaster = masterThreads.get(1);
97 }
98 activeMaster.getMaster().stop(
99 "stopping the active master so that the backup can become active");
100 cluster.hbaseCluster.waitOnMaster(activeMaster);
101 cluster.waitForActiveAndReadyMaster();
102
103 assertTrue("The table should not be in enabled state", cluster.getMaster()
104 .getAssignmentManager().getTableStateManager().isTableState(
105 TableName.valueOf("tableRestart"), ZooKeeperProtos.Table.State.DISABLED,
106 ZooKeeperProtos.Table.State.DISABLING));
107 log("Enabling table\n");
108
109 Admin admin = new HBaseAdmin(TEST_UTIL.getConfiguration());
110 admin.enableTable(table);
111 admin.close();
112 log("Waiting for no more RIT\n");
113 blockUntilNoRIT(zkw, master);
114 log("Verifying there are " + numRegions + " assigned on cluster\n");
115 regions = HBaseTestingUtility.getAllOnlineRegions(cluster);
116 assertEquals("The assigned regions were not onlined after master"
117 + " switch except for the catalog and namespace tables.",
118 6, regions.size());
119 assertTrue("The table should be in enabled state", cluster.getMaster()
120 .getAssignmentManager().getTableStateManager()
121 .isTableState(TableName.valueOf("tableRestart"), ZooKeeperProtos.Table.State.ENABLED));
122 ht.close();
123 TEST_UTIL.shutdownMiniCluster();
124 }
125
126 private void log(String msg) {
127 LOG.debug("\n\nTRR: " + msg + "\n");
128 }
129
130 private void blockUntilNoRIT(ZooKeeperWatcher zkw, HMaster master)
131 throws KeeperException, InterruptedException {
132 ZKAssign.blockUntilNoRIT(zkw);
133 master.assignmentManager.waitUntilNoRegionsInTransition(60000);
134 }
135 }
136