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18 package org.apache.hadoop.hbase.master;
19
20 import static org.junit.Assert.assertEquals;
21 import static org.junit.Assert.assertNotNull;
22 import static org.junit.Assert.assertTrue;
23
24 import java.io.IOException;
25 import java.util.List;
26
27 import org.apache.hadoop.hbase.HBaseTestingUtility;
28 import org.apache.hadoop.hbase.HConstants;
29 import org.apache.hadoop.hbase.MiniHBaseCluster;
30 import org.apache.hadoop.hbase.NamespaceDescriptor;
31 import org.apache.hadoop.hbase.TableName;
32 import org.apache.hadoop.hbase.client.HTable;
33 import org.apache.hadoop.hbase.client.Put;
34 import org.apache.hadoop.hbase.protobuf.generated.ClusterStatusProtos.RegionStoreSequenceIds;
35 import org.apache.hadoop.hbase.regionserver.HRegionServer;
36 import org.apache.hadoop.hbase.regionserver.Region;
37 import org.apache.hadoop.hbase.testclassification.MediumTests;
38 import org.apache.hadoop.hbase.util.Bytes;
39 import org.apache.hadoop.hbase.util.JVMClusterUtil;
40 import org.junit.After;
41 import org.junit.Before;
42 import org.junit.Test;
43 import org.junit.experimental.categories.Category;
44
45
46
47
48
49 @Category(MediumTests.class)
50 public class TestGetLastFlushedSequenceId {
51
52 private final HBaseTestingUtility testUtil = new HBaseTestingUtility();
53
54 private final TableName tableName = TableName.valueOf(getClass().getSimpleName(), "test");
55
56 private final byte[] family = Bytes.toBytes("f1");
57
58 private final byte[][] families = new byte[][] { family };
59
60 @Before
61 public void setUp() throws Exception {
62 testUtil.getConfiguration().setInt("hbase.regionserver.msginterval", 1000);
63 testUtil.startMiniCluster(1, 1);
64 }
65
66 @After
67 public void tearDown() throws Exception {
68 testUtil.shutdownMiniCluster();
69 }
70
71 @Test
72 public void test() throws IOException, InterruptedException {
73 testUtil.getHBaseAdmin().createNamespace(
74 NamespaceDescriptor.create(tableName.getNamespaceAsString()).build());
75 HTable table = testUtil.createTable(tableName, families);
76 table.put(new Put(Bytes.toBytes("k")).add(family, Bytes.toBytes("q"), Bytes.toBytes("v")));
77 table.flushCommits();
78 MiniHBaseCluster cluster = testUtil.getMiniHBaseCluster();
79 List<JVMClusterUtil.RegionServerThread> rsts = cluster.getRegionServerThreads();
80 Region region = null;
81 for (int i = 0; i < cluster.getRegionServerThreads().size(); i++) {
82 HRegionServer hrs = rsts.get(i).getRegionServer();
83 for (Region r : hrs.getOnlineRegions(tableName)) {
84 region = r;
85 break;
86 }
87 }
88 assertNotNull(region);
89 Thread.sleep(2000);
90 RegionStoreSequenceIds ids =
91 testUtil.getHBaseCluster().getMaster()
92 .getLastSequenceId(region.getRegionInfo().getEncodedNameAsBytes());
93 assertEquals(HConstants.NO_SEQNUM, ids.getLastFlushedSequenceId());
94 long storeSequenceId = ids.getStoreSequenceId(0).getSequenceId();
95 assertTrue(storeSequenceId > 0);
96 testUtil.getHBaseAdmin().flush(tableName);
97 Thread.sleep(2000);
98 ids =
99 testUtil.getHBaseCluster().getMaster()
100 .getLastSequenceId(region.getRegionInfo().getEncodedNameAsBytes());
101 assertTrue(ids.getLastFlushedSequenceId() + " > " + storeSequenceId,
102 ids.getLastFlushedSequenceId() > storeSequenceId);
103 assertEquals(ids.getLastFlushedSequenceId(), ids.getStoreSequenceId(0).getSequenceId());
104 table.close();
105 }
106 }