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StartStopRandomMember.java
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StartStopRandomMember.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j Enterprise Edition. The included source
* code can be redistributed and/or modified under the terms of the
* GNU AFFERO GENERAL PUBLIC LICENSE Version 3
* (http://www.fsf.org/licensing/licenses/agpl-3.0.html) with the
* Commons Clause, as found in the associated LICENSE.txt file.
*
* 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.
*
* Neo4j object code can be licensed independently from the source
* under separate terms from the AGPL. Inquiries can be directed to:
* licensing@neo4j.com
*
* More information is also available at:
* https://neo4j.com/licensing/
*/
package org.neo4j.causalclustering.stresstests;
import java.io.File;
import java.io.PrintStream;
import org.neo4j.causalclustering.catchup.storecopy.CopiedStoreRecovery;
import org.neo4j.causalclustering.catchup.storecopy.TemporaryStoreDirectory;
import org.neo4j.causalclustering.discovery.ClusterMember;
import org.neo4j.consistency.ConsistencyCheckService;
import org.neo4j.graphdb.facade.GraphDatabaseDependencies;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.pagecache.PageCache;
import org.neo4j.io.pagecache.impl.muninn.StandalonePageCacheFactory;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.logging.Log;
import static org.neo4j.consistency.ConsistencyCheckTool.runConsistencyCheckTool;
import static org.neo4j.io.NullOutputStream.NULL_OUTPUT_STREAM;
class StartStopRandomMember extends RepeatOnRandomMember
{
private final FileSystemAbstraction fs;
private final PageCache pageCache;
private final Log log;
StartStopRandomMember( Control control, Resources resources )
{
super( control, resources );
this.fs = resources.fileSystem();
this.pageCache = resources.pageCache();
this.log = resources.logProvider().getLog( getClass() );
}
@Override
protected void doWorkOnMember( ClusterMember member ) throws InterruptedException
{
File databaseDirectory = member.database().databaseLayout().databaseDirectory();
log.info( "Stopping: " + member );
member.shutdown();
assertStoreConsistent( databaseDirectory );
Thread.sleep( 5000 );
log.info( "Starting: " + member );
member.start();
}
private void assertStoreConsistent( File storeDir )
{
File parent = storeDir.getParentFile();
try ( TemporaryStoreDirectory storeDirectory = new TemporaryStoreDirectory( fs, pageCache, parent );
PageCache pageCache = StandalonePageCacheFactory.createPageCache( fs ) )
{
fs.copyRecursively( storeDir, storeDirectory.storeDir() );
new CopiedStoreRecovery( Config.defaults(), GraphDatabaseDependencies.newDependencies().kernelExtensions(), pageCache )
.recoverCopiedStore( storeDirectory.databaseLayout() );
ConsistencyCheckService.Result result = runConsistencyCheckTool( new String[]{storeDir.getAbsolutePath()},
new PrintStream( NULL_OUTPUT_STREAM ), new PrintStream( NULL_OUTPUT_STREAM ) );
if ( !result.isSuccessful() )
{
throw new RuntimeException( "Not consistent database in " + storeDir );
}
}
catch ( Throwable e )
{
throw new RuntimeException( "Failed to run CC on " + storeDir, e );
}
}
}