| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.bookkeeper.replication; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Random; |
| import java.util.Set; |
| import org.apache.bookkeeper.client.BKException; |
| import org.apache.bookkeeper.client.BookKeeper.DigestType; |
| import org.apache.bookkeeper.client.LedgerHandle; |
| import org.apache.bookkeeper.meta.AbstractZkLedgerManagerFactory; |
| import org.apache.bookkeeper.meta.LedgerManager; |
| import org.apache.bookkeeper.meta.LedgerManagerFactory; |
| import org.apache.bookkeeper.meta.ZkLayoutManager; |
| import org.apache.bookkeeper.meta.zk.ZKMetadataDriverBase; |
| import org.apache.bookkeeper.replication.ReplicationException.BKAuditException; |
| import org.apache.bookkeeper.test.BookKeeperClusterTestCase; |
| import org.apache.bookkeeper.util.ZkUtils; |
| import org.apache.zookeeper.KeeperException; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Tests verifies bookie vs ledger mapping generating by the BookieLedgerIndexer. |
| */ |
| public class BookieLedgerIndexTest extends BookKeeperClusterTestCase { |
| |
| // Depending on the taste, select the amount of logging |
| // by decommenting one of the two lines below |
| // private final static Logger LOG = Logger.getRootLogger(); |
| private static final Logger LOG = LoggerFactory |
| .getLogger(BookieLedgerIndexTest.class); |
| |
| private Random rng; // Random Number Generator |
| private ArrayList<byte[]> entries; // generated entries |
| private final DigestType digestType = DigestType.CRC32; |
| private int numberOfLedgers = 3; |
| private List<Long> ledgerList; |
| private LedgerManagerFactory newLedgerManagerFactory; |
| private LedgerManager ledgerManager; |
| |
| public BookieLedgerIndexTest() |
| throws IOException, KeeperException, InterruptedException { |
| this("org.apache.bookkeeper.meta.HierarchicalLedgerManagerFactory"); |
| } |
| |
| BookieLedgerIndexTest(String ledgerManagerFactory) |
| throws IOException, KeeperException, InterruptedException { |
| super(3); |
| LOG.info("Running test case using ledger manager : " |
| + ledgerManagerFactory); |
| // set ledger manager name |
| baseConf.setLedgerManagerFactoryClassName(ledgerManagerFactory); |
| baseClientConf.setLedgerManagerFactoryClassName(ledgerManagerFactory); |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| super.setUp(); |
| baseConf.setMetadataServiceUri(zkUtil.getMetadataServiceUri()); |
| rng = new Random(System.currentTimeMillis()); // Initialize the Random |
| // Number Generator |
| entries = new ArrayList<byte[]>(); // initialize the entries list |
| ledgerList = new ArrayList<Long>(3); |
| // initialize ledger manager |
| newLedgerManagerFactory = AbstractZkLedgerManagerFactory.newLedgerManagerFactory( |
| baseConf, |
| new ZkLayoutManager(zkc, |
| ZKMetadataDriverBase.resolveZkLedgersRootPath(baseConf), ZkUtils.getACLs(baseConf))); |
| |
| ledgerManager = newLedgerManagerFactory.newLedgerManager(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| super.tearDown(); |
| if (null != newLedgerManagerFactory) { |
| newLedgerManagerFactory.close(); |
| newLedgerManagerFactory = null; |
| } |
| if (null != ledgerManager) { |
| ledgerManager.close(); |
| ledgerManager = null; |
| } |
| } |
| |
| /** |
| * Verify the bookie-ledger mapping with minimum number of bookies and few |
| * ledgers. |
| */ |
| @Test |
| public void testSimpleBookieLedgerMapping() throws Exception { |
| |
| for (int i = 0; i < numberOfLedgers; i++) { |
| createAndAddEntriesToLedger().close(); |
| } |
| |
| BookieLedgerIndexer bookieLedgerIndex = new BookieLedgerIndexer( |
| ledgerManager); |
| |
| Map<String, Set<Long>> bookieToLedgerIndex = bookieLedgerIndex |
| .getBookieToLedgerIndex(); |
| |
| assertEquals("Missed few bookies in the bookie-ledger mapping!", 3, |
| bookieToLedgerIndex.size()); |
| Collection<Set<Long>> bk2ledgerEntry = bookieToLedgerIndex.values(); |
| for (Set<Long> ledgers : bk2ledgerEntry) { |
| assertEquals("Missed few ledgers in the bookie-ledger mapping!", 3, |
| ledgers.size()); |
| for (Long ledgerId : ledgers) { |
| assertTrue("Unknown ledger-bookie mapping", ledgerList |
| .contains(ledgerId)); |
| } |
| } |
| } |
| |
| /** |
| * Verify ledger index with failed bookies and throws exception. |
| */ |
| @SuppressWarnings("deprecation") |
| @Test |
| public void testWithoutZookeeper() throws Exception { |
| // This test case is for ledger metadata that stored in ZooKeeper. As |
| // far as MSLedgerManagerFactory, ledger metadata are stored in other |
| // storage. So this test is not suitable for MSLedgerManagerFactory. |
| if (newLedgerManagerFactory instanceof org.apache.bookkeeper.meta.MSLedgerManagerFactory) { |
| return; |
| } |
| |
| for (int i = 0; i < numberOfLedgers; i++) { |
| createAndAddEntriesToLedger().close(); |
| } |
| |
| BookieLedgerIndexer bookieLedgerIndex = new BookieLedgerIndexer( |
| ledgerManager); |
| stopZKCluster(); |
| try { |
| bookieLedgerIndex.getBookieToLedgerIndex(); |
| fail("Must throw exception as zookeeper are not running!"); |
| } catch (BKAuditException bkAuditException) { |
| // expected behaviour |
| } |
| } |
| |
| /** |
| * Verify indexing with multiple ensemble reformation. |
| */ |
| @Test |
| public void testEnsembleReformation() throws Exception { |
| try { |
| LedgerHandle lh1 = createAndAddEntriesToLedger(); |
| LedgerHandle lh2 = createAndAddEntriesToLedger(); |
| |
| startNewBookie(); |
| shutdownBookie(lastBookieIndex() - 1); |
| |
| // add few more entries after ensemble reformation |
| for (int i = 0; i < 10; i++) { |
| ByteBuffer entry = ByteBuffer.allocate(4); |
| entry.putInt(rng.nextInt(Integer.MAX_VALUE)); |
| entry.position(0); |
| |
| entries.add(entry.array()); |
| lh1.addEntry(entry.array()); |
| lh2.addEntry(entry.array()); |
| } |
| |
| BookieLedgerIndexer bookieLedgerIndex = new BookieLedgerIndexer( |
| ledgerManager); |
| |
| Map<String, Set<Long>> bookieToLedgerIndex = bookieLedgerIndex |
| .getBookieToLedgerIndex(); |
| assertEquals("Missed few bookies in the bookie-ledger mapping!", 4, |
| bookieToLedgerIndex.size()); |
| Collection<Set<Long>> bk2ledgerEntry = bookieToLedgerIndex.values(); |
| for (Set<Long> ledgers : bk2ledgerEntry) { |
| assertEquals( |
| "Missed few ledgers in the bookie-ledger mapping!", 2, |
| ledgers.size()); |
| for (Long ledgerNode : ledgers) { |
| assertTrue("Unknown ledger-bookie mapping", ledgerList |
| .contains(ledgerNode)); |
| } |
| } |
| } catch (BKException e) { |
| LOG.error("Test failed", e); |
| fail("Test failed due to BookKeeper exception"); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| LOG.error("Test failed", e); |
| fail("Test failed due to interruption"); |
| } |
| } |
| |
| private void shutdownBookie(int bkShutdownIndex) throws Exception { |
| killBookie(bkShutdownIndex); |
| } |
| |
| private LedgerHandle createAndAddEntriesToLedger() throws BKException, |
| InterruptedException { |
| int numEntriesToWrite = 20; |
| // Create a ledger |
| LedgerHandle lh = bkc.createLedger(digestType, "admin".getBytes()); |
| LOG.info("Ledger ID: " + lh.getId()); |
| for (int i = 0; i < numEntriesToWrite; i++) { |
| ByteBuffer entry = ByteBuffer.allocate(4); |
| entry.putInt(rng.nextInt(Integer.MAX_VALUE)); |
| entry.position(0); |
| |
| entries.add(entry.array()); |
| lh.addEntry(entry.array()); |
| } |
| ledgerList.add(lh.getId()); |
| return lh; |
| } |
| } |