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IndexConsistencyIT.java
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IndexConsistencyIT.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.consistency.checking;
import org.junit.Rule;
import org.junit.Test;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.neo4j.consistency.ConsistencyCheckService;
import org.neo4j.consistency.checking.full.ConsistencyCheckIncompleteException;
import org.neo4j.graphdb.Label;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Transaction;
import org.neo4j.helpers.collection.Pair;
import org.neo4j.io.fs.DefaultFileSystemAbstraction;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.impl.transaction.log.checkpoint.CheckPointer;
import org.neo4j.kernel.impl.transaction.log.checkpoint.SimpleTriggerInfo;
import org.neo4j.kernel.impl.transaction.state.DefaultIndexProviderMap;
import org.neo4j.logging.AssertableLogProvider;
import org.neo4j.test.rule.EmbeddedDatabaseRule;
import org.neo4j.test.rule.RandomRule;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.hasItem;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.neo4j.helpers.progress.ProgressMonitorFactory.NONE;
import static org.neo4j.io.fs.FileUtils.copyRecursively;
import static org.neo4j.test.TestLabels.LABEL_ONE;
import static org.neo4j.test.TestLabels.LABEL_THREE;
import static org.neo4j.test.TestLabels.LABEL_TWO;
public class IndexConsistencyIT
{
@Rule
public final EmbeddedDatabaseRule db = new EmbeddedDatabaseRule();
@Rule
public final RandomRule random = new RandomRule();
private final AssertableLogProvider log = new AssertableLogProvider();
private static final Label[] LABELS = new Label[]{LABEL_ONE, LABEL_TWO, LABEL_THREE};
private static final String PROPERTY_KEY = "numericProperty";
private static final double DELETE_RATIO = 0.2;
private static final double UPDATE_RATIO = 0.2;
private static final int NODE_COUNT_BASELINE = 10;
private final FileFilter SOURCE_COPY_FILE_FILTER = file -> file.isDirectory() || file.getName().startsWith( "index" );
@Test
public void reportNotCleanNativeIndex() throws IOException, ConsistencyCheckIncompleteException
{
File databaseDirectory = db.getTestDirectory().graphDbDir();
someData();
resolveComponent( CheckPointer.class ).forceCheckPoint( new SimpleTriggerInfo( "forcedCheckpoint" ) );
File indexesCopy = new File( databaseDirectory, "indexesCopy" );
File indexSources = resolveComponent( DefaultIndexProviderMap.class ).getDefaultProvider().directoryStructure().rootDirectory();
copyRecursively( indexSources, indexesCopy, SOURCE_COPY_FILE_FILTER );
try ( Transaction tx = db.beginTx() )
{
createNewNode( new Label[]{LABEL_ONE} );
tx.success();
}
db.shutdownAndKeepStore();
copyRecursively( indexesCopy, indexSources );
ConsistencyCheckService.Result result = fullConsistencyCheck();
assertFalse( "Expected consistency check to fail", result.isSuccessful() );
assertThat( readReport( result ),
hasItem( containsString("WARN : Index was not properly shutdown and rebuild is required.") ) );
}
@Test
public void reportNotCleanNativeIndexWithCorrectData() throws IOException, ConsistencyCheckIncompleteException
{
File databaseDir = db.databaseDirectory();
someData();
resolveComponent( CheckPointer.class ).forceCheckPoint( new SimpleTriggerInfo( "forcedCheckpoint" ) );
File indexesCopy = new File( databaseDir, "indexesCopy" );
File indexSources = resolveComponent( DefaultIndexProviderMap.class ).getDefaultProvider().directoryStructure().rootDirectory();
copyRecursively( indexSources, indexesCopy, SOURCE_COPY_FILE_FILTER );
db.shutdownAndKeepStore();
copyRecursively( indexesCopy, indexSources );
ConsistencyCheckService.Result result = fullConsistencyCheck();
assertTrue( "Expected consistency check to fail", result.isSuccessful() );
assertThat( readReport( result ),
hasItem( containsString("WARN : Index was not properly shutdown and rebuild is required.") ) );
}
private <T> T resolveComponent( Class<T> clazz )
{
return db.resolveDependency( clazz );
}
private List<String> readReport( ConsistencyCheckService.Result result )
throws IOException
{
return Files.readAllLines( result.reportFile().toPath() );
}
List<Pair<Long,Label[]>> someData()
{
return someData( 50 );
}
List<Pair<Long,Label[]>> someData( int numberOfModifications )
{
List<Pair<Long,Label[]>> existingNodes;
existingNodes = new ArrayList<>();
try ( Transaction tx = db.beginTx() )
{
randomModifications( existingNodes, numberOfModifications );
tx.success();
}
try ( Transaction tx = db.beginTx() )
{
db.schema().indexFor( LABEL_ONE ).on( PROPERTY_KEY ).create();
tx.success();
}
try ( Transaction tx = db.beginTx() )
{
db.schema().awaitIndexesOnline( 1, TimeUnit.MINUTES );
tx.success();
}
return existingNodes;
}
private List<Pair<Long,Label[]>> randomModifications( List<Pair<Long,Label[]>> existingNodes,
int numberOfModifications )
{
for ( int i = 0; i < numberOfModifications; i++ )
{
double selectModification = random.nextDouble();
if ( existingNodes.size() < NODE_COUNT_BASELINE || selectModification >= DELETE_RATIO + UPDATE_RATIO )
{
createNewNode( existingNodes );
}
else if ( selectModification < DELETE_RATIO )
{
deleteExistingNode( existingNodes );
}
else
{
modifyLabelsOnExistingNode( existingNodes );
}
}
return existingNodes;
}
private void createNewNode( List<Pair<Long,Label[]>> existingNodes )
{
Label[] labels = randomLabels();
Node node = createNewNode( labels );
existingNodes.add( Pair.of( node.getId(), labels ) );
}
private Node createNewNode( Label[] labels )
{
Node node = db.createNode( labels );
node.setProperty( PROPERTY_KEY, random.nextInt() );
return node;
}
private void modifyLabelsOnExistingNode( List<Pair<Long,Label[]>> existingNodes )
{
int targetIndex = random.nextInt( existingNodes.size() );
Pair<Long,Label[]> existingPair = existingNodes.get( targetIndex );
long nodeId = existingPair.first();
Node node = db.getNodeById( nodeId );
node.getLabels().forEach( node::removeLabel );
Label[] newLabels = randomLabels();
for ( Label label : newLabels )
{
node.addLabel( label );
}
existingNodes.remove( targetIndex );
existingNodes.add( Pair.of( nodeId, newLabels ) );
}
private void deleteExistingNode( List<Pair<Long,Label[]>> existingNodes )
{
int targetIndex = random.nextInt( existingNodes.size() );
Pair<Long,Label[]> existingPair = existingNodes.get( targetIndex );
Node node = db.getNodeById( existingPair.first() );
node.delete();
existingNodes.remove( targetIndex );
}
private Label[] randomLabels()
{
List<Label> labels = new ArrayList<>( LABELS.length );
for ( Label label : LABELS )
{
if ( random.nextBoolean() )
{
labels.add( label );
}
}
return labels.toArray( new Label[labels.size()] );
}
private ConsistencyCheckService.Result fullConsistencyCheck()
throws ConsistencyCheckIncompleteException, IOException
{
try ( FileSystemAbstraction fsa = new DefaultFileSystemAbstraction() )
{
ConsistencyCheckService service = new ConsistencyCheckService();
Config config = Config.defaults();
return service.runFullConsistencyCheck( db.getTestDirectory().graphDbDir(), config, NONE, log, fsa, true );
}
}
}