package org.apache.cassandra.db;
/*
*
* 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.
*
*/
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.ExecutionException;
import org.junit.Test;
import org.apache.cassandra.SchemaLoader;
import org.apache.cassandra.Util;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.config.ConfigurationException;
import org.apache.cassandra.db.columniterator.IdentityQueryFilter;
import org.apache.cassandra.db.compaction.CompactionManager;
import org.apache.cassandra.io.util.FileUtils;
import org.apache.cassandra.io.sstable.SSTableWriter;
import org.apache.cassandra.io.sstable.SSTableReader;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.cassandra.utils.CLibrary;
import static org.apache.cassandra.Util.column;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.util.*;
public class ScrubTest extends SchemaLoader
{
public String TABLE = "Keyspace1";
public String CF = "Standard1";
public String CF2 = "Super5";
public String CF3 = "Standard2";
public String copySSTables(String cf) throws IOException
{
String root = System.getProperty("corrupt-sstable-root");
assert root != null;
File rootDir = new File(root);
assert rootDir.isDirectory();
File destDir = Directories.create(TABLE, cf).getDirectoryForNewSSTables(1);
String corruptSSTableName = null;
FileUtils.createDirectory(destDir);
for (File srcFile : rootDir.listFiles())
{
if (srcFile.getName().equals(".svn"))
continue;
if (!srcFile.getName().contains(cf))
continue;
File destFile = new File(destDir, srcFile.getName());
CLibrary.createHardLink(srcFile, destFile);
assert destFile.exists() : destFile.getAbsoluteFile();
if(destFile.getName().endsWith("Data.db"))
corruptSSTableName = destFile.getCanonicalPath();
}
assert corruptSSTableName != null;
return corruptSSTableName;
}
@Test
public void testScrubFile() throws Exception
{
copySSTables(CF2);
Table table = Table.open(TABLE);
ColumnFamilyStore cfs = table.getColumnFamilyStore(CF2);
cfs.loadNewSSTables();
assert cfs.getSSTables().size() > 0;
List<Row> rows;
boolean caught = false;
try
{
rows = cfs.getRangeSlice(ByteBufferUtil.bytes("1"), Util.range("", ""), 1000, new IdentityQueryFilter(), null);
fail("This slice should fail");
}
catch (NegativeArraySizeException e)
{
caught = true;
}
assert caught : "'corrupt' test file actually was not";
CompactionManager.instance.performScrub(cfs);
rows = cfs.getRangeSlice(ByteBufferUtil.bytes("1"), Util.range("", ""), 1000, new IdentityQueryFilter(), null);
assertEquals(100, rows.size());
}
@Test
public void testScrubOneRow() throws IOException, ExecutionException, InterruptedException, ConfigurationException
{
CompactionManager.instance.disableAutoCompaction();
Table table = Table.open(TABLE);
ColumnFamilyStore cfs = table.getColumnFamilyStore(CF);
List<Row> rows;
// insert data and verify we get it back w/ range query
fillCF(cfs, 1);
rows = cfs.getRangeSlice(null, Util.range("", ""), 1000, new IdentityQueryFilter(), null);
assertEquals(1, rows.size());
CompactionManager.instance.performScrub(cfs);
// check data is still there
rows = cfs.getRangeSlice(null, Util.range("", ""), 1000, new IdentityQueryFilter(), null);
assertEquals(1, rows.size());
}
@Test
public void testScrubDeletedRow() throws IOException, ExecutionException, InterruptedException, ConfigurationException
{
CompactionManager.instance.disableAutoCompaction();
Table table = Table.open(TABLE);
ColumnFamilyStore cfs = table.getColumnFamilyStore(CF3);
RowMutation rm;
rm = new RowMutation(TABLE, ByteBufferUtil.bytes(1));
ColumnFamily cf = ColumnFamily.create(TABLE, CF3);
cf.delete(0, 1); // expired tombstone
rm.add(cf);
rm.applyUnsafe();
cfs.forceBlockingFlush();
CompactionManager.instance.performScrub(cfs);
assert cfs.getSSTables().isEmpty();
}
@Test
public void testScrubMultiRow() throws IOException, ExecutionException, InterruptedException, ConfigurationException
{
CompactionManager.instance.disableAutoCompaction();
Table table = Table.open(TABLE);
ColumnFamilyStore cfs = table.getColumnFamilyStore(CF);
List<Row> rows;
// insert data and verify we get it back w/ range query
fillCF(cfs, 10);
rows = cfs.getRangeSlice(null, Util.range("", ""), 1000, new IdentityQueryFilter(), null);
assertEquals(10, rows.size());
CompactionManager.instance.performScrub(cfs);
// check data is still there
rows = cfs.getRangeSlice(null, Util.range("", ""), 1000, new IdentityQueryFilter(), null);
assertEquals(10, rows.size());
}
@Test
public void testScubOutOfOrder() throws Exception
{
CompactionManager.instance.disableAutoCompaction();
Table table = Table.open(TABLE);
String columnFamily = "Standard3";
ColumnFamilyStore cfs = table.getColumnFamilyStore(columnFamily);
/*
* Code used to generate an outOfOrder sstable. The test must be run without assertions for this to work.
* The test also assumes an ordered partitioner.
*
* ColumnFamily cf = ColumnFamily.create(TABLE, columnFamily);
* cf.addColumn(new Column(ByteBufferUtil.bytes("someName"), ByteBufferUtil.bytes("someValue"), 0L));
* SSTableWriter writer = cfs.createCompactionWriter((long)DatabaseDescriptor.getIndexInterval(), new File("."), Collections.<SSTableReader>emptyList());
* writer.append(Util.dk("a"), cf);
* writer.append(Util.dk("b"), cf);
* writer.append(Util.dk("z"), cf);
* writer.append(Util.dk("c"), cf);
* writer.append(Util.dk("y"), cf);
* writer.append(Util.dk("d"), cf);
* writer.closeAndOpenReader();
*/
copySSTables(columnFamily);
cfs.loadNewSSTables();
assert cfs.getSSTables().size() > 0;
List<Row> rows;
rows = cfs.getRangeSlice(null, Util.range("", ""), 1000, new IdentityQueryFilter(), null);
assert !isRowOrdered(rows) : "'corrupt' test file actually was not";
CompactionManager.instance.performScrub(cfs);
rows = cfs.getRangeSlice(null, Util.range("", ""), 1000, new IdentityQueryFilter(), null);
assert isRowOrdered(rows) : "Scrub failed: " + rows;
assert rows.size() == 6: "Got " + rows.size();
}
private static boolean isRowOrdered(List<Row> rows)
{
DecoratedKey prev = null;
for (Row row : rows)
{
if (prev != null && prev.compareTo(row.key) > 0)
return false;
prev = row.key;
}
return true;
}
protected void fillCF(ColumnFamilyStore cfs, int rowsPerSSTable) throws ExecutionException, InterruptedException, IOException
{
for (int i = 0; i < rowsPerSSTable; i++)
{
String key = String.valueOf(i);
// create a row and update the birthdate value, test that the index query fetches the new version
RowMutation rm;
rm = new RowMutation(TABLE, ByteBufferUtil.bytes(key));
ColumnFamily cf = ColumnFamily.create(TABLE, CF);
cf.addColumn(column("c1", "1", 1L));
cf.addColumn(column("c2", "2", 1L));
rm.add(cf);
rm.applyUnsafe();
}
cfs.forceBlockingFlush();
}
}