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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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package org.apache.bookkeeper.client;
import org.apache.bookkeeper.client.BookKeeper.DigestType;
import org.apache.bookkeeper.meta.FlatLedgerManagerFactory;
import org.apache.bookkeeper.meta.HierarchicalLedgerManagerFactory;
import org.apache.bookkeeper.meta.LedgerIdGenerator;
import org.apache.bookkeeper.meta.LedgerManager;
import org.apache.bookkeeper.meta.LedgerManagerFactory;
import org.apache.bookkeeper.meta.LongHierarchicalLedgerManagerFactory;
import org.apache.bookkeeper.meta.MSLedgerManagerFactory;
import org.apache.bookkeeper.net.BookieSocketAddress;
import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks;
import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks.GenericCallback;
import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks.LedgerMetadataListener;
import org.apache.bookkeeper.test.BookKeeperClusterTestCase;
import org.apache.bookkeeper.util.ReflectionUtils;
import org.apache.bookkeeper.versioning.Version;
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;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.*;
@RunWith(Parameterized.class)
public class TestWatchEnsembleChange extends BookKeeperClusterTestCase {
static Logger LOG = LoggerFactory.getLogger(TestWatchEnsembleChange.class);
final DigestType digestType;
final Class<? extends LedgerManagerFactory> lmFactoryCls;
public TestWatchEnsembleChange(Class<? extends LedgerManagerFactory> lmFactoryCls) {
super(7);
this.digestType = DigestType.CRC32;
this.lmFactoryCls = lmFactoryCls;
baseClientConf.setLedgerManagerFactoryClass(lmFactoryCls);
baseConf.setLedgerManagerFactoryClass(lmFactoryCls);
}
@Parameters
public static Collection<Object[]> configs() {
return Arrays.asList(new Object[][] {
{ FlatLedgerManagerFactory.class },
{ HierarchicalLedgerManagerFactory.class },
{ LongHierarchicalLedgerManagerFactory.class },
{ MSLedgerManagerFactory.class },
});
}
@Test(timeout = 60000)
public void testWatchEnsembleChange() throws Exception {
int numEntries = 10;
LedgerHandle lh = bkc.createLedger(3, 3, 3, digestType, "".getBytes());
for (int i=0; i<numEntries; i++) {
lh.addEntry(("data" + i).getBytes());
LOG.info("Added entry {}.", i);
}
LedgerHandle readLh = bkc.openLedgerNoRecovery(lh.getId(), digestType, "".getBytes());
long lastLAC = readLh.getLastAddConfirmed();
assertEquals(numEntries - 2, lastLAC);
ArrayList<BookieSocketAddress> ensemble =
lh.getLedgerMetadata().currentEnsemble;
for (BookieSocketAddress addr : ensemble) {
killBookie(addr);
}
// write another batch of entries, which will trigger ensemble change
for (int i=0; i<numEntries; i++) {
lh.addEntry(("data" + (numEntries + i)).getBytes());
LOG.info("Added entry {}.", (numEntries + i));
}
TimeUnit.SECONDS.sleep(5);
readLh.readLastConfirmed();
assertEquals(2 * numEntries - 2, readLh.getLastAddConfirmed());
readLh.close();
lh.close();
}
@Test(timeout = 60000)
public void testWatchMetadataRemoval() throws Exception {
LedgerManagerFactory factory = ReflectionUtils.newInstance(lmFactoryCls);
factory.initialize(baseConf, super.zkc, factory.getCurrentVersion());
final LedgerManager manager = factory.newLedgerManager();
LedgerIdGenerator idGenerator = factory.newLedgerIdGenerator();
final ByteBuffer bbLedgerId = ByteBuffer.allocate(8);
final CountDownLatch createLatch = new CountDownLatch(1);
final CountDownLatch removeLatch = new CountDownLatch(1);
idGenerator.generateLedgerId(new GenericCallback<Long>() {
@Override
public void operationComplete(int rc, final Long lid) {
manager.createLedgerMetadata(lid, new LedgerMetadata(4, 2, 2, digestType, "fpj was here".getBytes()),
new BookkeeperInternalCallbacks.GenericCallback<Void>(){
@Override
public void operationComplete(int rc, Void result) {
bbLedgerId.putLong(lid);
bbLedgerId.flip();
createLatch.countDown();
}
});
}
});
assertTrue(createLatch.await(2000, TimeUnit.MILLISECONDS));
final long createdLid = bbLedgerId.getLong();
manager.registerLedgerMetadataListener( createdLid,
new LedgerMetadataListener() {
@Override
public void onChanged( long ledgerId, LedgerMetadata metadata ) {
assertEquals(ledgerId, createdLid);
assertEquals(metadata, null);
removeLatch.countDown();
}
});
manager.removeLedgerMetadata( createdLid, Version.ANY,
new BookkeeperInternalCallbacks.GenericCallback<Void>() {
@Override
public void operationComplete(int rc, Void result) {
assertEquals(rc, BKException.Code.OK);
}
});
assertTrue(removeLatch.await(2000, TimeUnit.MILLISECONDS));
}
}