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.jupiter.api.Assertions.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.jupiter.api.AfterAll;
028import org.junit.jupiter.api.BeforeAll;
029import org.junit.jupiter.api.Tag;
030import org.junit.jupiter.api.Test;
031
032@Tag(MiscTests.TAG)
033@Tag(MediumTests.TAG)
034public class TestRegionReplicationLagEvaluation {
035
036  private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();
037
038  @BeforeAll
039  public static void setUp() throws Exception {
040    UTIL.getConfiguration().setBoolean(ServerRegionReplicaUtil.REGION_REPLICA_REPLICATION_CONF_KEY,
041      true);
042    UTIL.startMiniCluster(2);
043  }
044
045  @AfterAll
046  public static void tearDown() throws Exception {
047    UTIL.shutdownMiniCluster();
048  }
049
050  @Test
051  public void test() throws Exception {
052    RegionReplicationLagEvaluation tool = new RegionReplicationLagEvaluation();
053    assertEquals(0, ToolRunner.run(UTIL.getConfiguration(), tool, new String[] { "-r", "1000" }));
054    FastLongHistogram histogram = tool.getHistogram();
055    assertEquals(1000, histogram.getCount());
056  }
057}