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.io.hfile;
019
020import static org.apache.hadoop.hbase.HConstants.BUCKET_CACHE_IOENGINE_KEY;
021import static org.junit.Assert.assertEquals;
022import static org.junit.Assert.assertTrue;
023
024import java.io.File;
025import java.util.List;
026import org.apache.hadoop.conf.Configuration;
027import org.apache.hadoop.fs.Path;
028import org.apache.hadoop.hbase.HBaseClassTestRule;
029import org.apache.hadoop.hbase.HBaseTestingUtility;
030import org.apache.hadoop.hbase.MiniHBaseCluster;
031import org.apache.hadoop.hbase.StartMiniClusterOption;
032import org.apache.hadoop.hbase.TableName;
033import org.apache.hadoop.hbase.client.Admin;
034import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
035import org.apache.hadoop.hbase.client.Put;
036import org.apache.hadoop.hbase.client.Table;
037import org.apache.hadoop.hbase.client.TableDescriptor;
038import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
039import org.apache.hadoop.hbase.regionserver.HRegionServer;
040import org.apache.hadoop.hbase.regionserver.HStoreFile;
041import org.apache.hadoop.hbase.testclassification.IOTests;
042import org.apache.hadoop.hbase.testclassification.LargeTests;
043import org.apache.hadoop.hbase.util.Bytes;
044import org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster;
045import org.junit.After;
046import org.junit.Before;
047import org.junit.ClassRule;
048import org.junit.Test;
049import org.junit.experimental.categories.Category;
050import org.slf4j.Logger;
051import org.slf4j.LoggerFactory;
052
053@Category({ IOTests.class, LargeTests.class })
054public class TestPrefetchRSClose {
055
056  @ClassRule
057  public static final HBaseClassTestRule CLASS_RULE =
058    HBaseClassTestRule.forClass(TestPrefetchRSClose.class);
059
060  private static final Logger LOG = LoggerFactory.getLogger(TestPrefetchRSClose.class);
061
062  private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
063
064  private Configuration conf;
065  Path testDir;
066  MiniZooKeeperCluster zkCluster;
067  MiniHBaseCluster cluster;
068  StartMiniClusterOption option = StartMiniClusterOption.builder().numRegionServers(1).build();
069
070  @Before
071  public void setup() throws Exception {
072    conf = TEST_UTIL.getConfiguration();
073    testDir = TEST_UTIL.getDataTestDir();
074    TEST_UTIL.getTestFileSystem().mkdirs(testDir);
075
076    conf.setBoolean(CacheConfig.PREFETCH_BLOCKS_ON_OPEN_KEY, true);
077    conf.set(BUCKET_CACHE_IOENGINE_KEY, "file:" + testDir + "/bucket.cache");
078    conf.setInt("hbase.bucketcache.size", 400);
079    conf.set("hbase.bucketcache.persistent.path", testDir + "/bucket.persistence");
080    zkCluster = TEST_UTIL.startMiniZKCluster();
081    cluster = TEST_UTIL.startMiniHBaseCluster(option);
082    cluster.setConf(conf);
083  }
084
085  @Test
086  public void testPrefetchPersistence() throws Exception {
087
088    // Write to table and flush
089    TableName tableName = TableName.valueOf("table1");
090    byte[] row0 = Bytes.toBytes("row1");
091    byte[] row1 = Bytes.toBytes("row2");
092    byte[] family = Bytes.toBytes("family");
093    byte[] qf1 = Bytes.toBytes("qf1");
094    byte[] qf2 = Bytes.toBytes("qf2");
095    byte[] value1 = Bytes.toBytes("value1");
096    byte[] value2 = Bytes.toBytes("value2");
097
098    TableDescriptor td = TableDescriptorBuilder.newBuilder(tableName)
099      .setColumnFamily(ColumnFamilyDescriptorBuilder.of(family)).build();
100    Table table = TEST_UTIL.createTable(td, null);
101    try {
102      // put data
103      Put put0 = new Put(row0);
104      put0.addColumn(family, qf1, 1, value1);
105      table.put(put0);
106      Put put1 = new Put(row1);
107      put1.addColumn(family, qf2, 1, value2);
108      table.put(put1);
109      TEST_UTIL.flush(tableName);
110    } finally {
111      Thread.sleep(2000);
112    }
113
114    // Default interval for cache persistence is 1000ms. So after 1000ms, both the persistence files
115    // should exist.
116
117    HRegionServer regionServingRS = cluster.getRegionServer(0);
118
119    Admin admin = TEST_UTIL.getAdmin();
120    List<String> cachedFilesList = admin.getCachedFilesList(regionServingRS.getServerName());
121    assertEquals(1, cachedFilesList.size());
122    for (HStoreFile h : regionServingRS.getRegions().get(0).getStores().get(0).getStorefiles()) {
123      assertTrue(cachedFilesList.contains(h.getPath().getName()));
124    }
125
126    // Stop the RS
127    cluster.stopRegionServer(0);
128    LOG.info("Stopped Region Server 0.");
129    Thread.sleep(1000);
130    assertTrue(new File(testDir + "/bucket.persistence").exists());
131  }
132
133  @After
134  public void tearDown() throws Exception {
135    TEST_UTIL.shutdownMiniCluster();
136    TEST_UTIL.cleanupDataTestDirOnTestFS(String.valueOf(testDir));
137    if (zkCluster != null) {
138      zkCluster.shutdown();
139    }
140  }
141}