/**
* 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.
*/
package org.apache.cassandra.thrift;
import java.io.File;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.InetAddress;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.apache.cassandra.db.SystemTable;
import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;
import org.apache.cassandra.db.commitlog.CommitLog;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocolFactory;
import org.apache.thrift.server.TServer;
import org.apache.thrift.transport.TServerSocket;
import org.apache.thrift.transport.TTransportException;
import org.apache.thrift.transport.TTransportFactory;
import org.apache.thrift.transport.TFramedTransport;
import org.apache.thrift.TProcessorFactory;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.service.StorageService;
import org.apache.cassandra.utils.CLibrary;
import org.apache.cassandra.utils.FBUtilities;
import org.apache.cassandra.db.Table;
import org.apache.cassandra.db.CompactionManager;
/**
* This class supports two methods for creating a Cassandra node daemon,
* invoking the class's main method, and using the jsvc wrapper from
* commons-daemon, (for more information on using this class with the
* jsvc wrapper, see the
* <a href="http://commons.apache.org/daemon/jsvc.html">Commons Daemon</a>
* documentation).
*/
public class CassandraDaemon
{
private static Logger logger = Logger.getLogger(CassandraDaemon.class);
private TServer serverEngine;
private void setup() throws IOException, TTransportException
{
FBUtilities.tryMlockall();
// log4j
String file = System.getProperty("storage-config") + File.separator + "log4j.properties";
PropertyConfigurator.configure(file);
int listenPort = DatabaseDescriptor.getThriftPort();
InetAddress listenAddr = DatabaseDescriptor.getThriftAddress();
/*
* If ThriftAddress was left completely unconfigured, then assume
* the same default as ListenAddress
*/
if (listenAddr == null)
listenAddr = FBUtilities.getLocalAddress();
Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler()
{
public void uncaughtException(Thread t, Throwable e)
{
logger.error("Uncaught exception in thread " + t, e);
if (e instanceof OutOfMemoryError)
{
System.exit(100);
}
}
});
// check the system table for mismatched partitioner.
try
{
SystemTable.checkHealth();
}
catch (IOException e)
{
logger.error("Fatal exception during initialization", e);
System.exit(100);
}
// initialize keyspaces
for (String table : DatabaseDescriptor.getTables())
{
if (logger.isDebugEnabled())
logger.debug("opening keyspace " + table);
Table.open(table);
}
// replay the log if necessary and check for compaction candidates
CommitLog.recover();
CompactionManager.instance.checkAllColumnFamilies();
// start server internals
StorageService.instance.initServer();
// now we start listening for clients
final CassandraServer cassandraServer = new CassandraServer();
Cassandra.Processor processor = new Cassandra.Processor(cassandraServer);
// Transport
TServerSocket tServerSocket = new TServerSocket(new InetSocketAddress(listenAddr, listenPort));
logger.info(String.format("Binding thrift service to %s:%s", listenAddr, listenPort));
// Protocol factory
TProtocolFactory tProtocolFactory = new TBinaryProtocol.Factory();
// Transport factory
TTransportFactory inTransportFactory, outTransportFactory;
if (DatabaseDescriptor.isThriftFramed())
{
inTransportFactory = new TFramedTransport.Factory();
outTransportFactory = new TFramedTransport.Factory();
}
else
{
inTransportFactory = new TTransportFactory();
outTransportFactory = new TTransportFactory();
}
// ThreadPool Server
CustomTThreadPoolServer.Options options = new CustomTThreadPoolServer.Options();
options.minWorkerThreads = 64;
SynchronousQueue<Runnable> executorQueue = new SynchronousQueue<Runnable>();
ExecutorService executorService = new ThreadPoolExecutor(options.minWorkerThreads,
options.maxWorkerThreads,
60,
TimeUnit.SECONDS,
executorQueue)
{
@Override
protected void afterExecute(Runnable r, Throwable t)
{
super.afterExecute(r, t);
cassandraServer.logout();
}
};
serverEngine = new CustomTThreadPoolServer(new TProcessorFactory(processor),
tServerSocket,
inTransportFactory,
outTransportFactory,
tProtocolFactory,
tProtocolFactory,
options,
executorService);
}
/** hook for JSVC */
public void init(String[] args) throws IOException, TTransportException
{
setup();
}
/** hook for JSVC */
public void start()
{
logger.info("Cassandra starting up...");
serverEngine.serve();
}
/** hook for JSVC */
public void stop()
{
// this doesn't entirely shut down Cassandra, just the Thrift server.
// jsvc takes care of taking the rest down
logger.info("Cassandra shutting down...");
serverEngine.stop();
}
/** hook for JSVC */
public void destroy()
{
// this is supposed to "destroy any object created in init", but
// StorageService et al. are crash-only, so we no-op here.
}
public static void main(String[] args)
{
CassandraDaemon daemon = new CassandraDaemon();
String pidFile = System.getProperty("cassandra-pidfile");
try
{
daemon.setup();
if (pidFile != null)
{
new File(pidFile).deleteOnExit();
}
if (System.getProperty("cassandra-foreground") == null)
{
System.out.close();
System.err.close();
}
daemon.start();
}
catch (Throwable e)
{
String msg = "Exception encountered during startup.";
logger.error(msg, e);
// try to warn user on stdout too, if we haven't already detached
System.out.println(msg);
e.printStackTrace();
System.exit(3);
}
}
}