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.master.region;
019
020import static org.junit.Assert.assertEquals;
021import static org.junit.Assert.assertTrue;
022import static org.mockito.ArgumentMatchers.anyBoolean;
023import static org.mockito.Mockito.mock;
024import static org.mockito.Mockito.when;
025
026import java.io.IOException;
027import java.util.Collections;
028import java.util.concurrent.TimeUnit;
029import java.util.concurrent.atomic.AtomicInteger;
030import java.util.concurrent.atomic.AtomicLong;
031import org.apache.hadoop.conf.Configuration;
032import org.apache.hadoop.fs.Path;
033import org.apache.hadoop.hbase.Abortable;
034import org.apache.hadoop.hbase.HBaseClassTestRule;
035import org.apache.hadoop.hbase.HBaseConfiguration;
036import org.apache.hadoop.hbase.TableName;
037import org.apache.hadoop.hbase.Waiter;
038import org.apache.hadoop.hbase.client.RegionInfoBuilder;
039import org.apache.hadoop.hbase.regionserver.HRegion;
040import org.apache.hadoop.hbase.regionserver.HStore;
041import org.apache.hadoop.hbase.testclassification.MasterTests;
042import org.apache.hadoop.hbase.testclassification.MediumTests;
043import org.junit.After;
044import org.junit.Before;
045import org.junit.ClassRule;
046import org.junit.Test;
047import org.junit.experimental.categories.Category;
048
049@Category({ MasterTests.class, MediumTests.class })
050public class TestMasterRegionFlush {
051
052  @ClassRule
053  public static final HBaseClassTestRule CLASS_RULE =
054    HBaseClassTestRule.forClass(TestMasterRegionFlush.class);
055
056  private Configuration conf;
057
058  private HRegion region;
059
060  private MasterRegionFlusherAndCompactor flusher;
061
062  private AtomicInteger flushCalled;
063
064  private AtomicLong memstoreHeapSize;
065
066  private AtomicLong memstoreOffHeapSize;
067
068  @Before
069  public void setUp() throws IOException {
070    conf = HBaseConfiguration.create();
071    region = mock(HRegion.class);
072    HStore store = mock(HStore.class);
073    when(store.getStorefilesCount()).thenReturn(1);
074    when(region.getStores()).thenReturn(Collections.singletonList(store));
075    when(region.getRegionInfo())
076      .thenReturn(RegionInfoBuilder.newBuilder(TableName.valueOf("hbase:local")).build());
077    flushCalled = new AtomicInteger(0);
078    memstoreHeapSize = new AtomicLong(0);
079    memstoreOffHeapSize = new AtomicLong(0);
080    when(region.getMemStoreHeapSize()).thenAnswer(invocation -> memstoreHeapSize.get());
081    when(region.getMemStoreOffHeapSize()).thenAnswer(invocation -> memstoreOffHeapSize.get());
082    when(region.flush(anyBoolean())).thenAnswer(invocation -> {
083      assertTrue(invocation.getArgument(0));
084      memstoreHeapSize.set(0);
085      memstoreOffHeapSize.set(0);
086      flushCalled.incrementAndGet();
087      return null;
088    });
089  }
090
091  @After
092  public void tearDown() {
093    if (flusher != null) {
094      flusher.close();
095      flusher = null;
096    }
097  }
098
099  private void initFlusher(long flushSize, long flushPerChanges, long flushIntervalMs) {
100    flusher = new MasterRegionFlusherAndCompactor(conf, new Abortable() {
101
102      @Override
103      public boolean isAborted() {
104        return false;
105      }
106
107      @Override
108      public void abort(String why, Throwable e) {
109      }
110    }, region, flushSize, flushPerChanges, flushIntervalMs, 4, new Path("/tmp"), "");
111  }
112
113  @Test
114  public void testTriggerFlushBySize() throws IOException, InterruptedException {
115    initFlusher(1024 * 1024, 1_000_000, TimeUnit.MINUTES.toMillis(15));
116    memstoreHeapSize.set(1000 * 1024);
117    flusher.onUpdate();
118    Thread.sleep(1000);
119    assertEquals(0, flushCalled.get());
120    memstoreOffHeapSize.set(1000 * 1024);
121    flusher.onUpdate();
122    Waiter.waitFor(conf, 2000, () -> flushCalled.get() == 1);
123  }
124
125  private void assertTriggerFlushByChanges(int changes) throws InterruptedException {
126    int currentFlushCalled = flushCalled.get();
127    for (int i = 0; i < changes; i++) {
128      flusher.onUpdate();
129    }
130    Thread.sleep(1000);
131    assertEquals(currentFlushCalled, flushCalled.get());
132    flusher.onUpdate();
133    Waiter.waitFor(conf, 5000, () -> flushCalled.get() == currentFlushCalled + 1);
134  }
135
136  @Test
137  public void testTriggerFlushByChanges() throws InterruptedException {
138    initFlusher(128 * 1024 * 1024, 10, TimeUnit.MINUTES.toMillis(15));
139    assertTriggerFlushByChanges(10);
140    assertTriggerFlushByChanges(10);
141  }
142
143  @Test
144  public void testPeriodicalFlush() throws InterruptedException {
145    initFlusher(128 * 1024 * 1024, 1_000_000, TimeUnit.SECONDS.toMillis(1));
146    assertEquals(0, flushCalled.get());
147    Thread.sleep(1500);
148    assertEquals(1, flushCalled.get());
149    Thread.sleep(1000);
150    assertEquals(2, flushCalled.get());
151  }
152}