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;
019
020import static org.junit.Assert.assertEquals;
021
022import org.apache.hadoop.hbase.metrics.impl.FastLongHistogram;
023import org.apache.hadoop.hbase.testclassification.MediumTests;
024import org.apache.hadoop.hbase.testclassification.MiscTests;
025import org.apache.hadoop.hbase.util.ServerRegionReplicaUtil;
026import org.apache.hadoop.util.ToolRunner;
027import org.junit.AfterClass;
028import org.junit.BeforeClass;
029import org.junit.ClassRule;
030import org.junit.Test;
031import org.junit.experimental.categories.Category;
032
033@Category({ MiscTests.class, MediumTests.class })
034public class TestRegionReplicationLagEvaluation {
035
036  @ClassRule
037  public static final HBaseClassTestRule CLASS_RULE =
038    HBaseClassTestRule.forClass(TestRegionReplicationLagEvaluation.class);
039
040  private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();
041
042  @BeforeClass
043  public static void setUp() throws Exception {
044    UTIL.getConfiguration().setBoolean(ServerRegionReplicaUtil.REGION_REPLICA_REPLICATION_CONF_KEY,
045      true);
046    UTIL.startMiniCluster(2);
047  }
048
049  @AfterClass
050  public static void tearDown() throws Exception {
051    UTIL.shutdownMiniCluster();
052  }
053
054  @Test
055  public void test() throws Exception {
056    RegionReplicationLagEvaluation tool = new RegionReplicationLagEvaluation();
057    assertEquals(0, ToolRunner.run(UTIL.getConfiguration(), tool, new String[] { "-r", "1000" }));
058    FastLongHistogram histogram = tool.getHistogram();
059    assertEquals(1000, histogram.getCount());
060  }
061}