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BackupHaIT.java
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BackupHaIT.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.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 Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.ha;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.neo4j.backup.OnlineBackupSettings;
import org.neo4j.function.IntFunction;
import org.neo4j.kernel.configuration.Settings;
import org.neo4j.kernel.impl.ha.ClusterManager.ManagedCluster;
import org.neo4j.test.DbRepresentation;
import org.neo4j.test.SuppressOutput;
import org.neo4j.test.ha.ClusterRule;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.neo4j.backup.BackupEmbeddedIT.createSomeData;
import static org.neo4j.backup.BackupEmbeddedIT.runBackupToolFromOtherJvmToGetExitCode;
public class BackupHaIT
{
@Rule
public ClusterRule clusterRule = new ClusterRule( getClass() )
.withSharedSetting( OnlineBackupSettings.online_backup_enabled, Settings.TRUE )
.withInstanceSetting( OnlineBackupSettings.online_backup_server, new IntFunction<String>()
{
@Override
public String apply( int serverId )
{
return (":" + (4444 + serverId));
}
} );
@Rule
public final SuppressOutput suppressOutput = SuppressOutput.suppressAll();
private File backupPath;
@Before
public void setup() throws Exception
{
backupPath = clusterRule.cleanDirectory( "backup-db" );
createSomeData( clusterRule.startCluster().getMaster() );
}
@Test
public void makeSureBackupCanBePerformedFromWronglyNamedCluster() throws Throwable
{
assertEquals( 0, runBackupToolFromOtherJvmToGetExitCode(
backupArguments( "localhost:4445", backupPath.getPath(), "non.existent" ) ) );
}
@Test
public void makeSureBackupCanBePerformed() throws Throwable
{
// Run backup
ManagedCluster cluster = clusterRule.startCluster();
DbRepresentation beforeChange = DbRepresentation.of( cluster.getMaster() );
assertEquals( 0, runBackupToolFromOtherJvmToGetExitCode( backupArguments( "localhost:4445",
backupPath.getPath(), null ) ) );
// Add some new data
DbRepresentation afterChange = createSomeData( cluster.getMaster() );
cluster.sync();
// Verify that backed up database can be started and compare representation
DbRepresentation backupRepresentation = DbRepresentation.of( backupPath );
assertEquals( beforeChange, backupRepresentation );
assertNotEquals( backupRepresentation, afterChange );
}
@Test
public void makeSureBackupCanBePerformedFromAnyInstance() throws Throwable
{
ManagedCluster cluster = clusterRule.startCluster();
Integer[] backupPorts = {4445, 4446, 4447};
for ( Integer port : backupPorts )
{
// Run backup
DbRepresentation beforeChange = DbRepresentation.of( cluster.getMaster() );
assertEquals( 0, runBackupToolFromOtherJvmToGetExitCode( backupArguments( "localhost:" + port,
backupPath.getPath(), null ) ) );
// Add some new data
DbRepresentation afterChange = createSomeData( cluster.getMaster() );
cluster.sync();
// Verify that old data is back
DbRepresentation backupRepresentation = DbRepresentation.of( backupPath );
assertEquals( beforeChange, backupRepresentation );
assertNotEquals( backupRepresentation, afterChange );
}
}
private String[] backupArguments( String from, String to, String clusterName )
{
List<String> args = new ArrayList<>();
args.add( "-from" );
args.add( from );
args.add( "-to" );
args.add( to );
if ( clusterName != null )
{
args.add( "-cluster" );
args.add( clusterName );
}
return args.toArray( new String[args.size()] );
}
}