| /* |
| * 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.client; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.bookkeeper.bookie.InterleavedLedgerStorage; |
| import org.apache.bookkeeper.bookie.LedgerStorage; |
| import org.apache.bookkeeper.bookie.SortedLedgerStorage; |
| import org.apache.bookkeeper.bookie.storage.ldb.DbLedgerStorage; |
| import org.apache.bookkeeper.client.BookKeeper.DigestType; |
| import org.apache.bookkeeper.conf.ServerConfiguration; |
| import org.apache.bookkeeper.test.BookKeeperClusterTestCase; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| /** |
| * Test read last confirmed long by polling. |
| */ |
| @RunWith(Parameterized.class) |
| public class TestReadLastConfirmedLongPoll extends BookKeeperClusterTestCase { |
| private static final Logger log = LoggerFactory.getLogger(TestReadLastConfirmedLongPoll.class); |
| final DigestType digestType; |
| |
| public TestReadLastConfirmedLongPoll(Class<? extends LedgerStorage> storageClass) { |
| super(6); |
| this.digestType = DigestType.CRC32; |
| baseConf.setLedgerStorageClass(storageClass.getName()); |
| } |
| |
| @Parameters |
| public static Collection<Object[]> configs() { |
| return Arrays.asList(new Object[][] { |
| { InterleavedLedgerStorage.class }, |
| { SortedLedgerStorage.class }, |
| { DbLedgerStorage.class }, |
| }); |
| } |
| |
| @Test |
| public void testReadLACLongPollWhenAllBookiesUp() throws Exception { |
| final int numEntries = 3; |
| |
| final LedgerHandle lh = bkc.createLedger(3, 3, 1, digestType, "".getBytes()); |
| LedgerHandle readLh = bkc.openLedgerNoRecovery(lh.getId(), digestType, "".getBytes()); |
| assertEquals(LedgerHandle.INVALID_ENTRY_ID, readLh.getLastAddConfirmed()); |
| // add entries |
| for (int i = 0; i < (numEntries - 1); i++) { |
| lh.addEntry(("data" + i).getBytes()); |
| } |
| final AtomicBoolean success = new AtomicBoolean(false); |
| final AtomicInteger numCallbacks = new AtomicInteger(0); |
| final CountDownLatch firstReadComplete = new CountDownLatch(1); |
| readLh.asyncTryReadLastConfirmed(new AsyncCallback.ReadLastConfirmedCallback() { |
| @Override |
| public void readLastConfirmedComplete(int rc, long lastConfirmed, Object ctx) { |
| numCallbacks.incrementAndGet(); |
| if (BKException.Code.OK == rc) { |
| success.set(true); |
| } else { |
| success.set(false); |
| } |
| firstReadComplete.countDown(); |
| } |
| }, null); |
| firstReadComplete.await(); |
| assertTrue(success.get()); |
| assertTrue(numCallbacks.get() == 1); |
| assertEquals(numEntries - 3, readLh.getLastAddConfirmed()); |
| // try read last confirmed again |
| success.set(false); |
| numCallbacks.set(0); |
| long entryId = readLh.getLastAddConfirmed() + 1; |
| final CountDownLatch secondReadComplete = new CountDownLatch(1); |
| readLh.asyncReadLastConfirmedAndEntry(entryId++, 1000, true, |
| new AsyncCallback.ReadLastConfirmedAndEntryCallback() { |
| @Override |
| public void readLastConfirmedAndEntryComplete(int rc, long lastConfirmed, LedgerEntry entry, Object ctx) { |
| numCallbacks.incrementAndGet(); |
| if (BKException.Code.OK == rc && lastConfirmed == (numEntries - 2)) { |
| success.set(true); |
| } else { |
| success.set(false); |
| } |
| secondReadComplete.countDown(); |
| } |
| }, null); |
| lh.addEntry(("data" + (numEntries - 1)).getBytes()); |
| secondReadComplete.await(); |
| assertTrue(success.get()); |
| assertTrue(numCallbacks.get() == 1); |
| assertEquals(numEntries - 2, readLh.getLastAddConfirmed()); |
| |
| success.set(false); |
| numCallbacks.set(0); |
| final CountDownLatch thirdReadComplete = new CountDownLatch(1); |
| readLh.asyncReadLastConfirmedAndEntry(entryId++, 1000, false, |
| new AsyncCallback.ReadLastConfirmedAndEntryCallback() { |
| @Override |
| public void readLastConfirmedAndEntryComplete(int rc, long lastConfirmed, LedgerEntry entry, Object ctx) { |
| numCallbacks.incrementAndGet(); |
| if (BKException.Code.OK == rc && lastConfirmed == (numEntries - 1)) { |
| success.set(true); |
| } else { |
| success.set(false); |
| } |
| thirdReadComplete.countDown(); |
| } |
| }, null); |
| lh.addEntry(("data" + numEntries).getBytes()); |
| thirdReadComplete.await(); |
| assertTrue(success.get()); |
| assertTrue(numCallbacks.get() == 1); |
| assertEquals(numEntries - 1, readLh.getLastAddConfirmed()); |
| lh.close(); |
| readLh.close(); |
| } |
| |
| @Test |
| public void testReadLACLongPollWhenSomeBookiesDown() throws Exception { |
| final int numEntries = 3; |
| final LedgerHandle lh = bkc.createLedger(3, 1, 1, digestType, "".getBytes()); |
| LedgerHandle readLh = bkc.openLedgerNoRecovery(lh.getId(), digestType, "".getBytes()); |
| assertEquals(LedgerHandle.INVALID_ENTRY_ID, readLh.getLastAddConfirmed()); |
| // add entries |
| for (int i = 0; i < numEntries; i++) { |
| lh.addEntry(("data" + i).getBytes()); |
| } |
| for (int i = 0; i < numEntries; i++) { |
| ServerConfiguration[] confs = new ServerConfiguration[numEntries - 1]; |
| for (int j = 0; j < numEntries - 1; j++) { |
| int idx = (i + 1 + j) % numEntries; |
| confs[j] = killBookie(LedgerMetadataUtils.getLastEnsembleValue(lh.getLedgerMetadata()).get(idx)); |
| } |
| |
| final AtomicBoolean entryAsExpected = new AtomicBoolean(false); |
| final AtomicBoolean success = new AtomicBoolean(false); |
| final AtomicInteger numCallbacks = new AtomicInteger(0); |
| final CountDownLatch readComplete = new CountDownLatch(1); |
| final int entryId = i; |
| readLh.asyncTryReadLastConfirmed(new AsyncCallback.ReadLastConfirmedCallback() { |
| @Override |
| public void readLastConfirmedComplete(int rc, long lastConfirmed, Object ctx) { |
| numCallbacks.incrementAndGet(); |
| if (BKException.Code.OK == rc) { |
| success.set(true); |
| entryAsExpected.set(lastConfirmed == (entryId - 1)); |
| } else { |
| System.out.println("Return value" + rc); |
| success.set(false); |
| entryAsExpected.set(false); |
| } |
| readComplete.countDown(); |
| } |
| }, null); |
| readComplete.await(); |
| assertTrue(success.get()); |
| assertTrue(entryAsExpected.get()); |
| assertTrue(numCallbacks.get() == 1); |
| |
| lh.close(); |
| readLh.close(); |
| |
| // start the bookies |
| for (ServerConfiguration conf : confs) { |
| bs.add(startBookie(conf)); |
| bsConfs.add(conf); |
| } |
| } |
| } |
| } |