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