001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.replication;
019
020import static org.junit.Assert.assertEquals;
021import static org.junit.Assert.assertTrue;
022
023import java.util.EnumSet;
024import java.util.List;
025import org.apache.hadoop.hbase.ClusterMetrics;
026import org.apache.hadoop.hbase.ClusterMetrics.Option;
027import org.apache.hadoop.hbase.HBaseClassTestRule;
028import org.apache.hadoop.hbase.ServerName;
029import org.apache.hadoop.hbase.client.Admin;
030import org.apache.hadoop.hbase.client.Put;
031import org.apache.hadoop.hbase.testclassification.MediumTests;
032import org.apache.hadoop.hbase.testclassification.ReplicationTests;
033import org.apache.hadoop.hbase.util.Bytes;
034import org.junit.ClassRule;
035import org.junit.Test;
036import org.junit.experimental.categories.Category;
037
038@Category({ ReplicationTests.class, MediumTests.class })
039public class TestReplicationStatusAfterLagging extends TestReplicationBase {
040
041  @ClassRule
042  public static final HBaseClassTestRule CLASS_RULE =
043    HBaseClassTestRule.forClass(TestReplicationStatusAfterLagging.class);
044
045  @Test
046  public void testReplicationStatusAfterLagging() throws Exception {
047    UTIL2.shutdownMiniHBaseCluster();
048    restartSourceCluster(1);
049    // add some values to cluster 1
050    for (int i = 0; i < NB_ROWS_IN_BATCH; i++) {
051      Put p = new Put(Bytes.toBytes("row" + i));
052      p.addColumn(famName, Bytes.toBytes("col1"), Bytes.toBytes("val" + i));
053      htable1.put(p);
054    }
055    UTIL2.startMiniHBaseCluster();
056    Thread.sleep(10000);
057    Admin hbaseAdmin = UTIL1.getAdmin();
058    ServerName serverName = UTIL1.getHBaseCluster().getRegionServer(0).getServerName();
059    ClusterMetrics metrics = hbaseAdmin.getClusterMetrics(EnumSet.of(Option.LIVE_SERVERS));
060    List<ReplicationLoadSource> loadSources =
061      metrics.getLiveServerMetrics().get(serverName).getReplicationLoadSourceList();
062    assertEquals(1, loadSources.size());
063    ReplicationLoadSource loadSource = loadSources.get(0);
064    assertTrue(loadSource.hasEditsSinceRestart());
065    assertTrue(loadSource.getTimestampOfLastShippedOp() > 0);
066    assertEquals(0, loadSource.getReplicationLag());
067  }
068}