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*
* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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package org.apache.bookkeeper.bookie;
import java.io.IOException;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.SortedMap;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.bookkeeper.bookie.GarbageCollector.GarbageCleaner;
import org.apache.bookkeeper.client.BKException;
import org.apache.bookkeeper.client.BookKeeper.DigestType;
import org.apache.bookkeeper.client.LedgerHandle;
import org.apache.bookkeeper.client.LedgerMetadata;
import org.apache.bookkeeper.conf.ServerConfiguration;
import org.apache.bookkeeper.meta.FlatLedgerManagerFactory;
import org.apache.bookkeeper.meta.LedgerManagerFactory;
import org.apache.bookkeeper.meta.LedgerManagerTestCase;
import org.apache.bookkeeper.meta.ZkLedgerUnderreplicationManager;
import org.apache.bookkeeper.net.BookieSocketAddress;
import org.apache.bookkeeper.proto.BookieServer;
import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks.GenericCallback;
import org.apache.bookkeeper.util.SnapshotMap;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
import com.google.common.collect.Lists;
import org.apache.zookeeper.ZooDefs;
@RunWith(Parameterized.class)
public class TestGcOverreplicatedLedger extends LedgerManagerTestCase {
@Before
@Override
public void setUp() throws Exception {
super.setUp();
ledgerManager = ledgerManagerFactory.newLedgerManager();
activeLedgers = new SnapshotMap<Long, Boolean>();
}
public TestGcOverreplicatedLedger(Class<? extends LedgerManagerFactory> lmFactoryCls) {
super(lmFactoryCls, 3);
}
@Parameters
public static Collection<Object[]> configs() {
return Arrays.asList(new Object[][] { { FlatLedgerManagerFactory.class } });
}
@Test(timeout = 60000)
public void testGcOverreplicatedLedger() throws Exception {
LedgerHandle lh = bkc.createLedger(2, 2, DigestType.MAC, "".getBytes());
activeLedgers.put(lh.getId(), true);
final AtomicReference<LedgerMetadata> newLedgerMetadata = new AtomicReference<>(null);
final CountDownLatch latch = new CountDownLatch(1);
ledgerManager.readLedgerMetadata(lh.getId(), new GenericCallback<LedgerMetadata>() {
@Override
public void operationComplete(int rc, LedgerMetadata result) {
if (rc == BKException.Code.OK) {
newLedgerMetadata.set(result);
}
latch.countDown();
}
});
latch.await();
if (newLedgerMetadata.get() == null) {
Assert.fail("No ledger metadata found");
}
BookieSocketAddress bookieNotInEnsemble = getBookieNotInEnsemble(newLedgerMetadata.get());
ServerConfiguration bkConf = getBkConf(bookieNotInEnsemble);
bkConf.setGcOverreplicatedLedgerWaitTime(10, TimeUnit.MILLISECONDS);
lh.close();
final CompactableLedgerStorage mockLedgerStorage = new MockLedgerStorage();
final GarbageCollector garbageCollector = new ScanAndCompareGarbageCollector(ledgerManager, mockLedgerStorage,
bkConf);
Thread.sleep(bkConf.getGcOverreplicatedLedgerWaitTimeMillis() + 1);
garbageCollector.gc(new GarbageCleaner() {
@Override
public void clean(long ledgerId) {
try {
mockLedgerStorage.deleteLedger(ledgerId);
} catch (IOException e) {
e.printStackTrace();
return;
}
}
});
Assert.assertFalse(activeLedgers.containsKey(lh.getId()));
}
@Test(timeout = 60000)
public void testNoGcOfLedger() throws Exception {
LedgerHandle lh = bkc.createLedger(2, 2, DigestType.MAC, "".getBytes());
activeLedgers.put(lh.getId(), true);
final AtomicReference<LedgerMetadata> newLedgerMetadata = new AtomicReference<>(null);
final CountDownLatch latch = new CountDownLatch(1);
ledgerManager.readLedgerMetadata(lh.getId(), new GenericCallback<LedgerMetadata>() {
@Override
public void operationComplete(int rc, LedgerMetadata result) {
if (rc == BKException.Code.OK) {
newLedgerMetadata.set(result);
}
latch.countDown();
}
});
latch.await();
if (newLedgerMetadata.get() == null) {
Assert.fail("No ledger metadata found");
}
BookieSocketAddress address = null;
SortedMap<Long, ArrayList<BookieSocketAddress>> ensembleMap = newLedgerMetadata.get().getEnsembles();
for (ArrayList<BookieSocketAddress> ensemble : ensembleMap.values()) {
address = ensemble.get(0);
}
ServerConfiguration bkConf = getBkConf(address);
bkConf.setGcOverreplicatedLedgerWaitTime(10, TimeUnit.MILLISECONDS);
lh.close();
final CompactableLedgerStorage mockLedgerStorage = new MockLedgerStorage();
final GarbageCollector garbageCollector = new ScanAndCompareGarbageCollector(ledgerManager, mockLedgerStorage,
bkConf);
Thread.sleep(bkConf.getGcOverreplicatedLedgerWaitTimeMillis() + 1);
garbageCollector.gc(new GarbageCleaner() {
@Override
public void clean(long ledgerId) {
try {
mockLedgerStorage.deleteLedger(ledgerId);
} catch (IOException e) {
e.printStackTrace();
return;
}
}
});
Assert.assertTrue(activeLedgers.containsKey(lh.getId()));
}
@Test(timeout = 60000)
public void testNoGcIfLedgerBeingReplicated() throws Exception {
LedgerHandle lh = bkc.createLedger(2, 2, DigestType.MAC, "".getBytes());
activeLedgers.put(lh.getId(), true);
final AtomicReference<LedgerMetadata> newLedgerMetadata = new AtomicReference<>(null);
final CountDownLatch latch = new CountDownLatch(1);
ledgerManager.readLedgerMetadata(lh.getId(), new GenericCallback<LedgerMetadata>() {
@Override
public void operationComplete(int rc, LedgerMetadata result) {
if (rc == BKException.Code.OK) {
newLedgerMetadata.set(result);
}
latch.countDown();
}
});
latch.await();
if (newLedgerMetadata.get() == null) {
Assert.fail("No ledger metadata found");
}
BookieSocketAddress bookieNotInEnsemble = getBookieNotInEnsemble(newLedgerMetadata.get());
ServerConfiguration bkConf = getBkConf(bookieNotInEnsemble);
bkConf.setGcOverreplicatedLedgerWaitTime(10, TimeUnit.MILLISECONDS);
lh.close();
ZkLedgerUnderreplicationManager.acquireUnderreplicatedLedgerLock(zkc, baseConf.getZkLedgersRootPath(),
lh.getId(), ZooDefs.Ids.OPEN_ACL_UNSAFE);
final CompactableLedgerStorage mockLedgerStorage = new MockLedgerStorage();
final GarbageCollector garbageCollector = new ScanAndCompareGarbageCollector(ledgerManager, mockLedgerStorage,
bkConf);
Thread.sleep(bkConf.getGcOverreplicatedLedgerWaitTimeMillis() + 1);
garbageCollector.gc(new GarbageCleaner() {
@Override
public void clean(long ledgerId) {
try {
mockLedgerStorage.deleteLedger(ledgerId);
} catch (IOException e) {
e.printStackTrace();
return;
}
}
});
Assert.assertTrue(activeLedgers.containsKey(lh.getId()));
}
private BookieSocketAddress getBookieNotInEnsemble(LedgerMetadata ledgerMetadata) throws UnknownHostException {
List<BookieSocketAddress> allAddresses = Lists.newArrayList();
for (BookieServer bk : bs) {
allAddresses.add(bk.getLocalAddress());
}
SortedMap<Long, ArrayList<BookieSocketAddress>> ensembles = ledgerMetadata.getEnsembles();
for (ArrayList<BookieSocketAddress> fragmentEnsembles : ensembles.values()) {
for (BookieSocketAddress ensemble : fragmentEnsembles) {
allAddresses.remove(ensemble);
}
}
Assert.assertEquals(allAddresses.size(), 1);
return allAddresses.get(0);
}
}