| /** |
| * 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 com.twitter.distributedlog; |
| |
| import com.twitter.distributedlog.util.FutureUtils; |
| import org.apache.bookkeeper.client.BKException; |
| import org.apache.bookkeeper.client.BookKeeper; |
| import org.apache.bookkeeper.client.LedgerHandle; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import static com.google.common.base.Charsets.UTF_8; |
| import static org.junit.Assert.*; |
| |
| /** |
| * Test {@link LedgerHandleCache} |
| */ |
| public class TestLedgerHandleCache extends TestDistributedLogBase { |
| static final Logger LOG = LoggerFactory.getLogger(TestLedgerHandleCache.class); |
| |
| protected static String ledgersPath = "/ledgers"; |
| |
| private ZooKeeperClient zkc; |
| private BookKeeperClient bkc; |
| |
| @Before |
| public void setup() throws Exception { |
| zkc = ZooKeeperClientBuilder.newBuilder() |
| .zkServers(zkServers).sessionTimeoutMs(10000).zkAclId(null).build(); |
| bkc = BookKeeperClientBuilder.newBuilder().name("bkc") |
| .zkc(zkc).ledgersPath(ledgersPath).dlConfig(conf).build(); |
| } |
| |
| @After |
| public void teardown() throws Exception { |
| bkc.close(); |
| zkc.close(); |
| } |
| |
| @Test(timeout = 60000, expected = NullPointerException.class) |
| public void testBuilderWithoutBKC() throws Exception { |
| LedgerHandleCache.newBuilder().build(); |
| } |
| |
| @Test(timeout = 60000, expected = NullPointerException.class) |
| public void testBuilderWithoutStatsLogger() throws Exception { |
| LedgerHandleCache.newBuilder().bkc(bkc).conf(conf).statsLogger(null).build(); |
| } |
| |
| @Test(timeout = 60000, expected = BKException.BKBookieHandleNotAvailableException.class) |
| public void testOpenLedgerWhenBkcClosed() throws Exception { |
| BookKeeperClient newBkc = BookKeeperClientBuilder.newBuilder().name("newBkc") |
| .zkc(zkc).ledgersPath(ledgersPath).dlConfig(conf).build(); |
| LedgerHandleCache cache = |
| LedgerHandleCache.newBuilder().bkc(newBkc).conf(conf).build(); |
| // closed the bkc |
| newBkc.close(); |
| // open ledger after bkc closed. |
| cache.openLedger(new LogSegmentMetadata.LogSegmentMetadataBuilder("", 2, 1, 1).setRegionId(1).build(), false); |
| } |
| |
| @Test(timeout = 60000, expected = BKException.ZKException.class) |
| public void testOpenLedgerWhenZkClosed() throws Exception { |
| ZooKeeperClient newZkc = ZooKeeperClientBuilder.newBuilder().zkAclId(null).name("zkc-openledger-when-zk-closed") |
| .zkServers(zkServers).sessionTimeoutMs(10000).build(); |
| BookKeeperClient newBkc = BookKeeperClientBuilder.newBuilder().name("bkc-openledger-when-zk-closed") |
| .zkc(newZkc).ledgersPath(ledgersPath).dlConfig(conf).build(); |
| try { |
| LedgerHandle lh = newBkc.get().createLedger(BookKeeper.DigestType.CRC32, "zkcClosed".getBytes(UTF_8)); |
| lh.close(); |
| newZkc.close(); |
| LedgerHandleCache cache = |
| LedgerHandleCache.newBuilder().bkc(newBkc).conf(conf).build(); |
| // open ledger after zkc closed |
| cache.openLedger(new LogSegmentMetadata.LogSegmentMetadataBuilder("", |
| 2, lh.getId(), 1).setLogSegmentSequenceNo(lh.getId()).build(), false); |
| } finally { |
| newBkc.close(); |
| } |
| } |
| |
| @Test(timeout = 60000, expected = BKException.BKUnexpectedConditionException.class) |
| public void testReadLastConfirmedWithoutOpeningLedger() throws Exception { |
| LedgerDescriptor desc = new LedgerDescriptor(9999, 9999, false); |
| LedgerHandleCache cache = |
| LedgerHandleCache.newBuilder().bkc(bkc).conf(conf).build(); |
| // read last confirmed |
| cache.tryReadLastConfirmed(desc); |
| } |
| |
| @Test(timeout = 60000, expected = BKException.BKUnexpectedConditionException.class) |
| public void testReadEntriesWithoutOpeningLedger() throws Exception { |
| LedgerDescriptor desc = new LedgerDescriptor(9999, 9999, false); |
| LedgerHandleCache cache = |
| LedgerHandleCache.newBuilder().bkc(bkc).conf(conf).build(); |
| // read entries |
| cache.readEntries(desc, 0, 10); |
| } |
| |
| @Test(timeout = 60000, expected = BKException.BKUnexpectedConditionException.class) |
| public void testGetLastConfirmedWithoutOpeningLedger() throws Exception { |
| LedgerDescriptor desc = new LedgerDescriptor(9999, 9999, false); |
| LedgerHandleCache cache = |
| LedgerHandleCache.newBuilder().bkc(bkc).conf(conf).build(); |
| // read entries |
| cache.getLastAddConfirmed(desc); |
| } |
| |
| @Test(timeout = 60000, expected = BKException.BKUnexpectedConditionException.class) |
| public void testReadLastConfirmedAndEntryWithoutOpeningLedger() throws Exception { |
| LedgerDescriptor desc = new LedgerDescriptor(9999, 9999, false); |
| LedgerHandleCache cache = |
| LedgerHandleCache.newBuilder().bkc(bkc).conf(conf).build(); |
| // read entries |
| FutureUtils.bkResult(cache.asyncReadLastConfirmedAndEntry(desc, 1L, 200L, false)); |
| } |
| |
| @Test(timeout = 60000, expected = BKException.BKUnexpectedConditionException.class) |
| public void testGetLengthWithoutOpeningLedger() throws Exception { |
| LedgerDescriptor desc = new LedgerDescriptor(9999, 9999, false); |
| LedgerHandleCache cache = |
| LedgerHandleCache.newBuilder().bkc(bkc).conf(conf).build(); |
| // read entries |
| cache.getLength(desc); |
| } |
| |
| @Test(timeout = 60000) |
| public void testOpenAndCloseLedger() throws Exception { |
| LedgerHandle lh = bkc.get().createLedger(1, 1, 1, |
| BookKeeper.DigestType.CRC32, conf.getBKDigestPW().getBytes(UTF_8)); |
| LedgerHandleCache cache = |
| LedgerHandleCache.newBuilder().bkc(bkc).conf(conf).build(); |
| LogSegmentMetadata segment = new LogSegmentMetadata.LogSegmentMetadataBuilder( |
| "/data", LogSegmentMetadata.LogSegmentMetadataVersion.VERSION_V5_SEQUENCE_ID, lh.getId(), 0L) |
| .build(); |
| LedgerDescriptor desc1 = cache.openLedger(segment, false); |
| assertTrue(cache.handlesMap.containsKey(desc1)); |
| LedgerHandleCache.RefCountedLedgerHandle refLh = cache.handlesMap.get(desc1); |
| assertEquals(1, refLh.getRefCount()); |
| cache.openLedger(segment, false); |
| assertTrue(cache.handlesMap.containsKey(desc1)); |
| assertEquals(2, refLh.getRefCount()); |
| // close the ledger |
| cache.closeLedger(desc1); |
| assertTrue(cache.handlesMap.containsKey(desc1)); |
| assertEquals(1, refLh.getRefCount()); |
| cache.closeLedger(desc1); |
| assertFalse(cache.handlesMap.containsKey(desc1)); |
| assertEquals(0, refLh.getRefCount()); |
| } |
| } |