/**
* 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.service;
import java.io.File;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.InetSocketAddress;
import java.net.InetAddress;
import org.apache.log4j.Logger;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocolFactory;
import org.apache.thrift.server.TThreadPoolServer;
import org.apache.thrift.transport.TServerSocket;
import org.apache.thrift.transport.TTransportException;
import org.apache.thrift.transport.TTransportFactory;
import org.apache.thrift.TProcessorFactory;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.utils.FBUtilities;
/**
* 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).
*
* @author Eric Evans <eevans@racklabs.com>
*
*/
public class CassandraDaemon
{
private static Logger logger = Logger.getLogger(CassandraDaemon.class);
private TThreadPoolServer serverEngine;
private void setup() throws IOException, TTransportException
{
int listenPort = DatabaseDescriptor.getThriftPort();
Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler()
{
public void uncaughtException(Thread t, Throwable e)
{
logger.error("Fatal exception in thread " + t, e);
}
});
CassandraServer peerStorageServer = new CassandraServer();
peerStorageServer.start();
Cassandra.Processor processor = new Cassandra.Processor(peerStorageServer);
// Transport
TServerSocket tServerSocket = new TServerSocket(new InetSocketAddress(FBUtilities.getHostName(), listenPort));
// Protocol factory
TProtocolFactory tProtocolFactory = new TBinaryProtocol.Factory();
// ThreadPool Server
TThreadPoolServer.Options options = new TThreadPoolServer.Options();
options.minWorkerThreads = 64;
serverEngine = new TThreadPoolServer(new TProcessorFactory(processor),
tServerSocket,
new TTransportFactory(),
new TTransportFactory(),
tProtocolFactory,
tProtocolFactory,
options);
}
/** 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()
{
logger.info("Cassandra shutting down...");
serverEngine.stop();
}
/** hook for JSVC */
public void destroy()
{
}
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 (Exception 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);
}
}
}