package org.apache.cassandra.io;
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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
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* Unless required by applicable law or agreed to in writing,
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
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import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.ExecutionException;
import org.junit.Test;
import org.apache.cassandra.CleanupHelper;
import org.apache.cassandra.Util;
import org.apache.cassandra.db.*;
import org.apache.cassandra.db.filter.QueryPath;
import org.apache.cassandra.dht.CollatingOrderPreservingPartitioner;
import org.apache.cassandra.dht.IPartitioner;
import org.apache.cassandra.dht.Range;
import org.apache.cassandra.io.sstable.IndexHelper;
import org.apache.cassandra.io.sstable.SSTableReader;
import org.apache.cassandra.io.util.DataOutputBuffer;
import org.apache.cassandra.utils.BloomFilter;
import org.apache.cassandra.utils.FBUtilities;
import static junit.framework.Assert.assertEquals;
public class LazilyCompactedRowTest extends CleanupHelper
{
private void assertBytes(ColumnFamilyStore cfs, int gcBefore, boolean major) throws IOException
{
Collection<SSTableReader> sstables = cfs.getSSTables();
CompactionIterator ci1 = new CompactionIterator(cfs, sstables, gcBefore, major);
LazyCompactionIterator ci2 = new LazyCompactionIterator(cfs, sstables, gcBefore, major);
while (true)
{
if (!ci1.hasNext())
{
assert !ci2.hasNext();
break;
}
AbstractCompactedRow row1 = ci1.next();
AbstractCompactedRow row2 = ci2.next();
DataOutputBuffer out1 = new DataOutputBuffer();
DataOutputBuffer out2 = new DataOutputBuffer();
row1.write(out1);
row2.write(out2);
DataInputStream in1 = new DataInputStream(new ByteArrayInputStream(out1.getData(), 0, out1.getLength()));
DataInputStream in2 = new DataInputStream(new ByteArrayInputStream(out2.getData(), 0, out2.getLength()));
// key isn't part of what CompactedRow writes, that's done by SSTW.append
// row size can differ b/c of bloom filter counts being different
long rowSize1 = SSTableReader.readRowSize(in1, sstables.iterator().next().getDescriptor());
long rowSize2 = SSTableReader.readRowSize(in2, sstables.iterator().next().getDescriptor());
assertEquals(out1.getLength(), rowSize1 + 8);
assertEquals(out2.getLength(), rowSize2 + 8);
// bloom filter
IndexHelper.defreezeBloomFilter(in1);
IndexHelper.defreezeBloomFilter(in2);
// index
int indexSize1 = in1.readInt();
int indexSize2 = in2.readInt();
assertEquals(indexSize1, indexSize2);
byte[] bytes1 = new byte[indexSize1];
byte[] bytes2 = new byte[indexSize2];
in1.readFully(bytes1);
in2.readFully(bytes2);
assert Arrays.equals(bytes1, bytes2);
// cf metadata
ColumnFamily cf1 = ColumnFamily.create("Keyspace1", "Standard1");
ColumnFamily cf2 = ColumnFamily.create("Keyspace1", "Standard1");
ColumnFamily.serializer().deserializeFromSSTableNoColumns(cf1, in1);
ColumnFamily.serializer().deserializeFromSSTableNoColumns(cf2, in2);
assert cf1.getLocalDeletionTime() == cf2.getLocalDeletionTime();
assert cf1.getMarkedForDeleteAt().equals(cf2.getMarkedForDeleteAt());
// columns
int columns = in1.readInt();
assert columns == in2.readInt();
for (int i = 0; i < columns; i++)
{
IColumn c1 = cf1.getColumnSerializer().deserialize(in1);
IColumn c2 = cf2.getColumnSerializer().deserialize(in2);
assert c1.equals(c2);
}
// that should be everything
assert in1.available() == 0;
assert in2.available() == 0;
}
}
@Test
public void testOneRow() throws IOException, ExecutionException, InterruptedException
{
CompactionManager.instance.disableAutoCompaction();
Table table = Table.open("Keyspace1");
ColumnFamilyStore cfs = table.getColumnFamilyStore("Standard1");
byte[] key = "k".getBytes();
RowMutation rm = new RowMutation("Keyspace1", key);
rm.add(new QueryPath("Standard1", null, "c".getBytes()), new byte[0], new TimestampClock(0));
rm.apply();
cfs.forceBlockingFlush();
assertBytes(cfs, Integer.MAX_VALUE, true);
}
@Test
public void testOneRowTwoColumns() throws IOException, ExecutionException, InterruptedException
{
CompactionManager.instance.disableAutoCompaction();
Table table = Table.open("Keyspace1");
ColumnFamilyStore cfs = table.getColumnFamilyStore("Standard1");
byte[] key = "k".getBytes();
RowMutation rm = new RowMutation("Keyspace1", key);
rm.add(new QueryPath("Standard1", null, "c".getBytes()), new byte[0], new TimestampClock(0));
rm.add(new QueryPath("Standard1", null, "d".getBytes()), new byte[0], new TimestampClock(0));
rm.apply();
cfs.forceBlockingFlush();
assertBytes(cfs, Integer.MAX_VALUE, true);
}
@Test
public void testTwoRows() throws IOException, ExecutionException, InterruptedException
{
CompactionManager.instance.disableAutoCompaction();
Table table = Table.open("Keyspace1");
ColumnFamilyStore cfs = table.getColumnFamilyStore("Standard1");
byte[] key = "k".getBytes();
RowMutation rm = new RowMutation("Keyspace1", key);
rm.add(new QueryPath("Standard1", null, "c".getBytes()), new byte[0], new TimestampClock(0));
rm.apply();
cfs.forceBlockingFlush();
rm.apply();
cfs.forceBlockingFlush();
assertBytes(cfs, Integer.MAX_VALUE, true);
}
@Test
public void testTwoRowsTwoColumns() throws IOException, ExecutionException, InterruptedException
{
CompactionManager.instance.disableAutoCompaction();
Table table = Table.open("Keyspace1");
ColumnFamilyStore cfs = table.getColumnFamilyStore("Standard1");
byte[] key = "k".getBytes();
RowMutation rm = new RowMutation("Keyspace1", key);
rm.add(new QueryPath("Standard1", null, "c".getBytes()), new byte[0], new TimestampClock(0));
rm.add(new QueryPath("Standard1", null, "d".getBytes()), new byte[0], new TimestampClock(0));
rm.apply();
cfs.forceBlockingFlush();
rm.apply();
cfs.forceBlockingFlush();
assertBytes(cfs, Integer.MAX_VALUE, true);
}
@Test
public void testManyRows() throws IOException, ExecutionException, InterruptedException
{
CompactionManager.instance.disableAutoCompaction();
Table table = Table.open("Keyspace1");
ColumnFamilyStore cfs = table.getColumnFamilyStore("Standard1");
final int ROWS_PER_SSTABLE = 10;
for (int j = 0; j < (SSTableReader.indexInterval() * 3) / ROWS_PER_SSTABLE; j++) {
for (int i = 0; i < ROWS_PER_SSTABLE; i++) {
byte[] key = String.valueOf(i % 2).getBytes();
RowMutation rm = new RowMutation("Keyspace1", key);
rm.add(new QueryPath("Standard1", null, String.valueOf(i / 2).getBytes()), new byte[0], new TimestampClock(j * ROWS_PER_SSTABLE + i));
rm.apply();
}
cfs.forceBlockingFlush();
}
assertBytes(cfs, Integer.MAX_VALUE, true);
}
private static class LazyCompactionIterator extends CompactionIterator
{
private final ColumnFamilyStore cfStore;
public LazyCompactionIterator(ColumnFamilyStore cfStore, Iterable<SSTableReader> sstables, int gcBefore, boolean major) throws IOException
{
super(cfStore, sstables, gcBefore, major);
this.cfStore = cfStore;
}
@Override
protected AbstractCompactedRow getCompactedRow()
{
return new LazilyCompactedRow(cfStore, rows, true, Integer.MAX_VALUE);
}
}
}