sijie commented on a change in pull request #889: BP-14 Implementation of WriteFlag.DEFERRED_SYNC on Journal URL: https://github.com/apache/bookkeeper/pull/889#discussion_r160070474
########## File path: bookkeeper-server/src/test/java/org/apache/bookkeeper/bookie/BookieJournalForceTest.java ########## @@ -0,0 +1,405 @@ +/* + * + * 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.bookie; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertTrue; +import static org.mockito.ArgumentMatchers.any; +import static org.mockito.Mockito.doAnswer; +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.when; +import static org.powermock.api.support.membermodification.MemberMatcher.method; +import static org.powermock.api.support.membermodification.MemberModifier.replace; + +import io.netty.buffer.ByteBuf; +import io.netty.buffer.Unpooled; +import java.io.File; +import java.lang.reflect.InvocationHandler; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.util.Arrays; +import java.util.concurrent.BlockingQueue; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.LinkedBlockingQueue; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicInteger; +import java.util.concurrent.atomic.AtomicLong; +import lombok.extern.slf4j.Slf4j; +import org.apache.bookkeeper.bookie.Journal.ForceWriteRequest; + +import org.apache.bookkeeper.conf.ServerConfiguration; +import org.apache.bookkeeper.conf.TestBKConfiguration; +import org.apache.bookkeeper.net.BookieSocketAddress; +import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks.WriteCallback; +import org.apache.bookkeeper.stats.Counter; +import org.junit.Rule; +import org.junit.Test; +import org.junit.rules.TemporaryFolder; +import org.junit.runner.RunWith; +import org.mockito.invocation.InvocationOnMock; +import org.mockito.stubbing.Answer; +import org.powermock.core.classloader.annotations.PrepareForTest; +import org.powermock.modules.junit4.PowerMockRunner; +import org.powermock.reflect.Whitebox; + +/** + * Test the bookie journal. + */ +@RunWith(PowerMockRunner.class) +@PrepareForTest({JournalChannel.class}) +@Slf4j +public class BookieJournalForceTest { + + private static final ByteBuf DATA = Unpooled.wrappedBuffer(new byte[]{}); + + @Rule + public TemporaryFolder tempDir = new TemporaryFolder(); + + @Test + public void testAckBeforeSync() throws Exception { + File journalDir = tempDir.newFolder(); + Bookie.checkDirectoryStructure(Bookie.getCurrentDirectory(journalDir)); + + ServerConfiguration conf = TestBKConfiguration.newServerConfiguration(); + conf.setJournalDirName(journalDir.getPath()) + .setZkServers(null); + + LedgerDirsManager ledgerDirsManager = mock(LedgerDirsManager.class); + Journal journal = new Journal(journalDir, conf, ledgerDirsManager); + journal.start(); + + CountDownLatch latch = new CountDownLatch(1); + AtomicInteger countForceWriteCallsBeforeAck = new AtomicInteger(); + replace(method(JournalChannel.class, "forceWrite")).with(new InvocationHandler() { + @Override + public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { + log.info("{} called with arguments {} ", method.getName(), Arrays.toString(args)); + if (latch.getCount() == 1) { + countForceWriteCallsBeforeAck.incrementAndGet(); + } + try { + method.invoke(proxy, args); + } catch (InvocationTargetException err) { + throw err.getCause(); + } + return null; + } + }); + + // wait for first file to be created + while (countForceWriteCallsBeforeAck.get() == 0) { + Thread.sleep(100); + } + + long ledgerId = 1; + long entryId = 0; + journal.logAddEntry(ledgerId, entryId, DATA, true /* ackBeforeSync */, new WriteCallback() { + @Override + public void writeComplete(int rc, long ledgerId, long entryId, BookieSocketAddress addr, Object ctx) { + latch.countDown(); + } + }, null); + assertTrue(latch.await(20, TimeUnit.SECONDS)); + assertEquals(1, countForceWriteCallsBeforeAck.get()); + + journal.shutdown(); + } + + @Test + public void testAckAfterSync() throws Exception { + File journalDir = tempDir.newFolder(); + Bookie.checkDirectoryStructure(Bookie.getCurrentDirectory(journalDir)); + + ServerConfiguration conf = TestBKConfiguration.newServerConfiguration(); + conf.setJournalDirName(journalDir.getPath()) + .setZkServers(null); + + LedgerDirsManager ledgerDirsManager = mock(LedgerDirsManager.class); + Journal journal = new Journal(journalDir, conf, ledgerDirsManager); + journal.start(); + + CountDownLatch latch = new CountDownLatch(1); + AtomicInteger countForceWriteCallsBeforeAck = new AtomicInteger(); + replace(method(JournalChannel.class, "forceWrite")).with(new InvocationHandler() { + @Override + public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { + log.info("{} called with arguments {} ", method.getName(), Arrays.toString(args)); + if (latch.getCount() == 1) { + countForceWriteCallsBeforeAck.incrementAndGet(); + } + try { + method.invoke(proxy, args); + } catch (InvocationTargetException err) { + throw err.getCause(); + } + return null; + } + }); + + // wait for first file to be created + while (countForceWriteCallsBeforeAck.get() == 0) { + Thread.sleep(100); + } + + long ledgerId = 1; + long entryId = 0; + journal.logAddEntry(ledgerId, entryId, DATA, false /* ackBeforeSync */, new WriteCallback() { + @Override + public void writeComplete(int rc, long ledgerId, long entryId, BookieSocketAddress addr, Object ctx) { + latch.countDown(); + } + }, null); + assertTrue(latch.await(20, TimeUnit.SECONDS)); + assertEquals(2, countForceWriteCallsBeforeAck.get()); + + journal.shutdown(); + } + + @Test + public void testAckBeforeSyncSuspendingJournal() throws Exception { + File journalDir = tempDir.newFolder(); + Bookie.checkDirectoryStructure(Bookie.getCurrentDirectory(journalDir)); + + ServerConfiguration conf = TestBKConfiguration.newServerConfiguration(); + conf.setJournalDirName(journalDir.getPath()) + .setZkServers(null); + + LedgerDirsManager ledgerDirsManager = mock(LedgerDirsManager.class); + Journal journal = new Journal(journalDir, conf, ledgerDirsManager); + + CountDownLatch forceWriteThreadSuspendedIsWaiting = new CountDownLatch(1); + LinkedBlockingQueue<ForceWriteRequest> supportQueue = new LinkedBlockingQueue<>(); + @SuppressWarnings("unchecked") + BlockingQueue<ForceWriteRequest> forceWriteRequests = mock(BlockingQueue.class); + AtomicBoolean forceWriteThreadSuspended = new AtomicBoolean(true); + + doAnswer((Answer) (InvocationOnMock iom) -> { + supportQueue.put(iom.getArgument(0)); + return null; + }).when(forceWriteRequests).put(any(ForceWriteRequest.class)); + + when(forceWriteRequests.take()).thenAnswer(new Answer<ForceWriteRequest>() { + @Override + public ForceWriteRequest answer(InvocationOnMock iom) throws Throwable { + forceWriteThreadSuspendedIsWaiting.countDown(); + while (forceWriteThreadSuspended.get()) { + Thread.sleep(100); + } + ForceWriteRequest res = supportQueue.take(); + while (forceWriteThreadSuspended.get()) { + Thread.sleep(100); + } + return res; + } + }); + Whitebox.setInternalState(journal, "forceWriteRequests", forceWriteRequests); + journal.start(); + assertTrue(forceWriteThreadSuspendedIsWaiting.await(10, TimeUnit.SECONDS)); + + CountDownLatch latch = new CountDownLatch(1); + AtomicInteger countForceWriteCallsBeforeAck = new AtomicInteger(); + replace(method(JournalChannel.class, "forceWrite")).with(new InvocationHandler() { + @Override + public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { + log.info("{} called with arguments {} ", method.getName(), Arrays.toString(args)); + if (latch.getCount() == 1) { + countForceWriteCallsBeforeAck.incrementAndGet(); + } + try { + method.invoke(proxy, args); + } catch (InvocationTargetException err) { + throw err.getCause(); + } + return null; + } + }); + + // wait for first file to be created + while (countForceWriteCallsBeforeAck.get() == 0) { + Thread.sleep(100); + } + + long ledgerId = 1; + long entryId = 0; + journal.logAddEntry(ledgerId, entryId, DATA, true /* ackBeforeSync */, new WriteCallback() { + @Override + public void writeComplete(int rc, long ledgerId, long entryId, BookieSocketAddress addr, Object ctx) { + latch.countDown(); + } + }, null); + assertTrue(latch.await(20, TimeUnit.SECONDS)); + assertTrue(supportQueue.isEmpty()); Review comment: better assert that `forceWrite` is not called. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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