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Merged V3.1 to HEAD

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Merged DEV/LIVECYCLE-3.1 to V3.1
      12581: Merged V2.1-A to DEV/LIVECYCLE-3.1
         8675: Set FileServers configuration properties using system properties
      12603: Merged V2.1-A to DEV/LIVECYCLE-3.1
         8702: Added bindto as a property-enabled value
         8703: Added bindto as a property-enabled value
         8705: Filter out a bind to address of '0.0.0.0'
      12631: Merged V2.1-A to DEV/LIVECYCLE-3.1
         8551: JGroups Channel factory
      12633: Merged V2.1-A to DEV\LIVECYCLE-3.1
         8552: Wired in JGroups heartbeats
         8554: Re-delete file
         8573: Failed hearbeat still must still wait before trying again
         8582: JGroups EHCache heartbeat fixes for TCP stack
   ___________________________________________________________________
   Modified: svn:mergeinfo
      Merged /alfresco/BRANCHES/V2.1-A:r8551-8552,8554,8573,8582,8675,8702-8705
      Merged /alfresco/BRANCHES/V3.1:r12893
      Merged /alfresco/BRANCHES/DEV/LIVECYCLE-3.1:r12581,12603,12631,12633


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@13517 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Derek Hulley
2009-03-10 13:23:30 +00:00
parent b60eb95e1b
commit 4fdb297884
23 changed files with 2889 additions and 53 deletions
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197
source/java/org/alfresco/repo/cache/jgroups/JGroupsKeepAliveHeartbeatReceiver.java vendored Normal file
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/*
* Copyright (C) 2005-2008 Alfresco Software Limited.
*
* This program 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* As a special exception to the terms and conditions of version 2.0 of
* the GPL, you may redistribute this Program in connection with Free/Libre
* and Open Source Software ("FLOSS") applications as described in Alfresco's
* FLOSS exception. You should have recieved a copy of the text describing
* the FLOSS exception, and it is also available here:
* http://www.alfresco.com/legal/licensing"
*/
package org.alfresco.repo.cache.jgroups;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.alfresco.util.EqualsHelper;
import org.alfresco.util.TraceableThreadFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jgroups.Address;
import org.jgroups.Channel;
import org.jgroups.Message;
import org.jgroups.ReceiverAdapter;
import org.jgroups.View;
/**
* Receives heartbeats from the {@link JGroupsKeepAliveHeartbeatSender JGroups heartbeat sender}.
*
* @author Derek Hulley
* @since 2.1.3
*/
public class JGroupsKeepAliveHeartbeatReceiver extends ReceiverAdapter
{
private static final int MAX_THREADS = 5;
private static Log logger = LogFactory.getLog(JGroupsKeepAliveHeartbeatReceiver.class);
private final JGroupsRMICacheManagerPeerProvider peerProvider;
private final JGroupsKeepAliveHeartbeatSender heartbeatSender;
private final Channel channel;
private boolean stopped;
private final ThreadPoolExecutor threadPool;
private final Set<String> rmiUrlsProcessingQueue;
public JGroupsKeepAliveHeartbeatReceiver(
JGroupsRMICacheManagerPeerProvider peerProvider,
JGroupsKeepAliveHeartbeatSender heartbeatSender,
Channel channel)
{
this.peerProvider = peerProvider;
this.heartbeatSender = heartbeatSender;
this.channel = channel;
this.rmiUrlsProcessingQueue = Collections.synchronizedSet(new HashSet<String>());
// Build the thread pool
TraceableThreadFactory threadFactory = new TraceableThreadFactory();
threadFactory.setThreadDaemon(true);
threadFactory.setThreadPriority(Thread.NORM_PRIORITY + 2);
this.threadPool = new ThreadPoolExecutor(
1, // Maintain one threads
1, // We'll increase it, if necessary
60, // 1 minute until unused threads get trashed
TimeUnit.SECONDS,
new LinkedBlockingQueue<Runnable>(),
threadFactory);
}
/**
* Register to receive message on the channel
*/
public void init()
{
channel.setReceiver(this);
}
/**
* Set the stop flag.
*/
public void dispose()
{
stopped = true;
}
@Override
public byte[] getState()
{
return new byte[] {};
}
@Override
public void setState(byte[] state)
{
// Nothing to do
}
@Override
public void receive(Message message)
{
Address localAddress = heartbeatSender.getHeartbeatSourceAddress();
Address remoteAddress = message.getSrc();
// Ignore messages from ourselves
if (EqualsHelper.nullSafeEquals(localAddress, remoteAddress))
{
if (logger.isDebugEnabled())
{
logger.debug("\n" +
"Ignoring cache peeer URLs heartbeat from self: " + message);
}
return;
}
String rmiUrls = new String(message.getBuffer());
if (logger.isDebugEnabled())
{
logger.debug("\n" +
"Received cache peer URLs heartbeat: \n" +
" Message: " + message + "\n" +
" Peers: " + rmiUrls);
}
// Quickly split them up
StringTokenizer tokenizer = new StringTokenizer(rmiUrls, JGroupsKeepAliveHeartbeatSender.URL_DELIMITER, false);
while (!stopped && tokenizer.hasMoreTokens())
{
String rmiUrl = tokenizer.nextToken();
// Is it pending?
if (rmiUrlsProcessingQueue.add(rmiUrl))
{
// Not pending. Shedule it.
ProcessingRunnable runnable = new ProcessingRunnable(rmiUrl);
threadPool.execute(runnable);
}
else
{
// It was already waiting to be processed
// Increase the thread pool size
int currentThreadPoolMaxSize = threadPool.getMaximumPoolSize();
if (currentThreadPoolMaxSize < MAX_THREADS)
{
threadPool.setMaximumPoolSize(currentThreadPoolMaxSize + 1);
}
}
}
}
/**
* Worker class to go into thread pool
*
* @author Derek Hulley
*/
private class ProcessingRunnable implements Runnable
{
private String rmiUrl;
private ProcessingRunnable(String rmiUrl)
{
this.rmiUrl = rmiUrl;
}
public void run()
{
rmiUrlsProcessingQueue.remove(rmiUrl);
if (stopped)
{
return;
}
peerProvider.registerPeer(rmiUrl);
}
}
@Override
public void viewAccepted(View newView)
{
if (logger.isDebugEnabled())
{
logger.debug("Cluster view changed: " + newView);
}
}
}