[hornetq-commits] JBoss hornetq SVN: r10013 - in trunk/examples/jms: stop-server-failover and 7 other directories.
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Wed Dec 8 04:53:16 EST 2010
Author: ataylor
Date: 2010-12-08 04:53:15 -0500 (Wed, 08 Dec 2010)
New Revision: 10013
Added:
trunk/examples/jms/stop-server-failover/
trunk/examples/jms/stop-server-failover/build.bat
trunk/examples/jms/stop-server-failover/build.sh
trunk/examples/jms/stop-server-failover/build.xml
trunk/examples/jms/stop-server-failover/readme.html
trunk/examples/jms/stop-server-failover/server0/
trunk/examples/jms/stop-server-failover/server0/client-jndi.properties
trunk/examples/jms/stop-server-failover/server0/hornetq-beans.xml
trunk/examples/jms/stop-server-failover/server0/hornetq-configuration.xml
trunk/examples/jms/stop-server-failover/server0/hornetq-jms.xml
trunk/examples/jms/stop-server-failover/server0/hornetq-users.xml
trunk/examples/jms/stop-server-failover/server1/
trunk/examples/jms/stop-server-failover/server1/client-jndi.properties
trunk/examples/jms/stop-server-failover/server1/hornetq-beans.xml
trunk/examples/jms/stop-server-failover/server1/hornetq-configuration.xml
trunk/examples/jms/stop-server-failover/server1/hornetq-jms.xml
trunk/examples/jms/stop-server-failover/server1/hornetq-users.xml
trunk/examples/jms/stop-server-failover/src/
trunk/examples/jms/stop-server-failover/src/org/
trunk/examples/jms/stop-server-failover/src/org/hornetq/
trunk/examples/jms/stop-server-failover/src/org/hornetq/jms/
trunk/examples/jms/stop-server-failover/src/org/hornetq/jms/example/
trunk/examples/jms/stop-server-failover/src/org/hornetq/jms/example/StopServerFailoverExample.java
Log:
added failover demonstrating forcing failover
Added: trunk/examples/jms/stop-server-failover/build.bat
===================================================================
--- trunk/examples/jms/stop-server-failover/build.bat (rev 0)
+++ trunk/examples/jms/stop-server-failover/build.bat 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,13 @@
+ at echo off
+
+set "OVERRIDE_ANT_HOME=..\..\..\tools\ant"
+
+if exist "..\..\..\src\bin\build.bat" (
+ rem running from TRUNK
+ call ..\..\..\src\bin\build.bat %*
+) else (
+ rem running from the distro
+ call ..\..\..\bin\build.bat %*
+)
+
+set "OVERRIDE_ANT_HOME="
Added: trunk/examples/jms/stop-server-failover/build.sh
===================================================================
--- trunk/examples/jms/stop-server-failover/build.sh (rev 0)
+++ trunk/examples/jms/stop-server-failover/build.sh 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+OVERRIDE_ANT_HOME=../../../tools/ant
+export OVERRIDE_ANT_HOME
+
+if [ -f "../../../src/bin/build.sh" ]; then
+ # running from TRUNK
+ ../../../src/bin/build.sh "$@"
+else
+ # running from the distro
+ ../../../bin/build.sh "$@"
+fi
+
+
+
Property changes on: trunk/examples/jms/stop-server-failover/build.sh
___________________________________________________________________
Name: svn:executable
+ *
Added: trunk/examples/jms/stop-server-failover/build.xml
===================================================================
--- trunk/examples/jms/stop-server-failover/build.xml (rev 0)
+++ trunk/examples/jms/stop-server-failover/build.xml 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ~ Copyright 2009 Red Hat, Inc.
+ ~ Red Hat 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.
+ -->
+
+<!DOCTYPE project [
+ <!ENTITY libraries SYSTEM "../../../thirdparty/libraries.ent">
+ ]>
+
+<project default="run" name="HornetQ JMS Non-transaction Failover Example">
+
+ <import file="../../common/build.xml"/>
+
+ <target name="run" depends="delete-files">
+ <antcall target="runExample">
+ <param name="example.classname" value="org.hornetq.jms.example.StopServerFailoverExample"/>
+ <param name="hornetq.example.beans.file" value="server0 server1"/>
+ </antcall>
+ </target>
+
+ <target name="runRemote" depends="delete-files">
+ <antcall target="runExample">
+ <param name="example.classname" value="org.hornetq.jms.example.StopServerFailoverExample"/>
+ <param name="hornetq.example.runServer" value="false"/>
+ </antcall>
+ </target>
+
+ <target name="delete-files" depends="clean">
+ <delete file="./server0/KILL_ME"/>
+ </target>
+
+</project>
Added: trunk/examples/jms/stop-server-failover/readme.html
===================================================================
--- trunk/examples/jms/stop-server-failover/readme.html (rev 0)
+++ trunk/examples/jms/stop-server-failover/readme.html 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,136 @@
+<html>
+ <head>
+ <title>HornetQ JMS Failover Without Transactions Example</title>
+ <link rel="stylesheet" type="text/css" href="../../common/common.css" />
+ <link rel="stylesheet" type="text/css" href="../../common/prettify.css" />
+ <script type="text/javascript" src="../../common/prettify.js"></script>
+ </head>
+ <body onload="prettyPrint()">
+ <h1>JMS Failover Without Transactions Example</h1>
+
+ <p>This example demonstrates two servers coupled as a live-backup pair for high availability (HA), and a client
+ connection failing over from live to backup when the live server is crashed.</p>
+ <p>Failover behavior differs wether the JMS session is transacted or not.</p>
+ <p>When a <em>non-transacted</em> JMS session is used, once and only once delivery is not guaranteed
+ and it is possible some messages will be lost or delivered twice, depending when the failover to the backup server occurs.</p>
+ <p>It is up to the client to deal with such cases. To ensure once and only once delivery, the client must
+ use transacted JMS sessions (as shown in the example for <a href="../transaction-failover/readme.html">failover with transactions</a>).</p>
+ <p>For more information on HornetQ failover and HA, and clustering in general, please see the clustering
+ section of the user manual.</p>
+
+ <h2>Example step-by-step</h2>
+ <p><i>To run the example, simply type <code>./build.sh</code> (or <code>build.bat</code> on windows) from this directory</i></p>
+ <p>In this example, the live server is server 1, and the backup server is server 0</p>
+ <p>The connection will initially be created to server1, server 1 will crash, and the client will carry on
+ seamlessly on server 0, the backup server.</p>
+ <ol>
+ <li>Get an initial context for looking up JNDI from server #1.</li>
+ <pre class="prettyprint">
+ initialContext = getContext(1);
+ </pre>
+
+ <li>Look up the JMS resources from JNDI on server #1.</li>
+ <pre class="prettyprint">
+ Queue queue = (Queue)initialContext.lookup("/queue/exampleQueue");
+ ConnectionFactory connectionFactory = (ConnectionFactory)initialContext.lookup("/ConnectionFactory");
+ </pre>
+
+ <li>Create a JMS Connection</li>
+ <pre class="prettyprint">
+ connection = connectionFactory.createConnection();
+ </pre>
+
+ <li>Create a JMS <em>non-transacted</em> Session with client acknowledgement</li>
+ <pre class="prettyprint">
+ Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
+ </pre>
+
+ <li>Start the connection to ensure delivery occurs</li>
+ <pre class="prettyprint">
+ connection.start();
+ </pre>
+
+ <li>Create a JMS MessageProducer and MessageConsumer</li>
+ <pre class="prettyprint">
+ MessageProducer producer = session.createProducer(queue);
+ MessageConsumer consumer = session.createConsumer(queue);
+ </pre>
+
+ <li>Send some messages to server #1</li>
+ <pre class="prettyprint">
+ for (int i = 0; i < numMessages; i++)
+ {
+ TextMessage message = session.createTextMessage("This is text message " + i);
+ producer.send(message);
+ System.out.println("Sent message: " + message.getText());
+ }
+ </pre>
+
+ <li>Receive and acknowledge half of the sent messages</li>
+ <pre class="prettyprint">
+ TextMessage message0 = null;
+ for (int i = 0; i < numMessages / 2; i++)
+ {
+ message0 = (TextMessage)consumer.receive(5000);
+ System.out.println("Got message: " + message0.getText());
+ }
+ message0.acknowledge();
+ </pre>
+
+ <li>Receive the second half of the sent messages but <em>do not acknowledge them yet</em></li>
+ <pre class="prettyprint">
+ for (int i = numMessages / 2; i < numMessages; i++)
+ {
+ message0 = (TextMessage)consumer.receive(5000);
+ System.out.println("Got message: " + message0.getText());
+ }
+ </pre>
+
+ <li>Crash server #1, the live server, and wait a little while to make sure it has really crashed.</li>
+ <pre class="prettyprint">
+ killServer(1);
+ Thread.sleep(2000);
+ </pre>
+
+ <li>Acknowledging the second half of the sent messages will fail as failover to the backup server has occured</li>
+ <pre class="prettyprint">
+ try
+ {
+ message0.acknowledge();
+ }
+ catch (JMSException e)
+ {
+ System.err.println("Got exception while acknowledging message: " + e.getMessage());
+ }
+ </pre>
+
+ <li>Consume again the second half of the messages againg. Note that they are not considered as redelivered</li>
+ <pre class="prettyprint">
+ for (int i = numMessages / 2; i < numMessages; i++)
+ {
+ message0 = (TextMessage)consumer.receive(5000);
+ System.out.printf("Got message: %s (redelivered?: %s)\n", message0.getText(), message0.getJMSRedelivered());
+ }
+ message0.acknowledge();
+ </pre>
+
+ <li>And finally, <strong>always</strong> remember to close your resources after use, in a <code>finally</code> block. Closing a JMS connection will automatically close all of its sessions, consumers, producer and browser objects</li>
+
+ <pre class="prettyprint">
+ finally
+ {
+ if (connection != null)
+ {
+ connection.close();
+ }
+
+ if (initialContext != null)
+ {
+ initialContext.close();
+ }
+ }
+ </pre>
+
+ </ol>
+ </body>
+</html>
Added: trunk/examples/jms/stop-server-failover/server0/client-jndi.properties
===================================================================
--- trunk/examples/jms/stop-server-failover/server0/client-jndi.properties (rev 0)
+++ trunk/examples/jms/stop-server-failover/server0/client-jndi.properties 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,3 @@
+java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
+java.naming.provider.url=jnp://localhost:1099
+java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
Added: trunk/examples/jms/stop-server-failover/server0/hornetq-beans.xml
===================================================================
--- trunk/examples/jms/stop-server-failover/server0/hornetq-beans.xml (rev 0)
+++ trunk/examples/jms/stop-server-failover/server0/hornetq-beans.xml 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+ ~ Copyright 2009 Red Hat, Inc.
+ ~ Red Hat 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.
+ -->
+
+<deployment xmlns="urn:jboss:bean-deployer:2.0">
+
+ <bean name="Naming" class="org.jnp.server.NamingBeanImpl"/>
+
+ <!-- JNDI server. Disable this if you don't want JNDI -->
+ <bean name="JNDIServer" class="org.jnp.server.Main">
+ <property name="namingInfo">
+ <inject bean="Naming"/>
+ </property>
+ <property name="port">1099</property>
+ <property name="bindAddress">localhost</property>
+ <property name="rmiPort">1098</property>
+ <property name="rmiBindAddress">localhost</property>
+ </bean>
+
+ <!-- MBean server -->
+ <bean name="MBeanServer" class="javax.management.MBeanServer">
+ <constructor factoryClass="java.lang.management.ManagementFactory"
+ factoryMethod="getPlatformMBeanServer"/>
+ </bean>
+
+ <!-- The core configuration -->
+ <bean name="Configuration" class="org.hornetq.core.config.impl.FileConfiguration"/>
+
+ <!-- The security manager -->
+ <bean name="HornetQSecurityManager" class="org.hornetq.spi.core.security.HornetQSecurityManagerImpl">
+ <start ignored="true"/>
+ <stop ignored="true"/>
+ </bean>
+
+ <!-- The core server -->
+ <bean name="HornetQServer" class="org.hornetq.core.server.impl.HornetQServerImpl">
+ <constructor>
+ <parameter>
+ <inject bean="Configuration"/>
+ </parameter>
+ <parameter>
+ <inject bean="MBeanServer"/>
+ </parameter>
+ <parameter>
+ <inject bean="HornetQSecurityManager"/>
+ </parameter>
+ </constructor>
+ <start ignored="true"/>
+ <stop ignored="true"/>
+ </bean>
+
+ <!-- The JMS server -->
+ <bean name="JMSServerManager" class="org.hornetq.jms.server.impl.JMSServerManagerImpl">
+ <constructor>
+ <parameter>
+ <inject bean="HornetQServer"/>
+ </parameter>
+ </constructor>
+ </bean>
+
+</deployment>
Added: trunk/examples/jms/stop-server-failover/server0/hornetq-configuration.xml
===================================================================
--- trunk/examples/jms/stop-server-failover/server0/hornetq-configuration.xml (rev 0)
+++ trunk/examples/jms/stop-server-failover/server0/hornetq-configuration.xml 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,67 @@
+<configuration xmlns="urn:hornetq"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="urn:hornetq /schema/hornetq-configuration.xsd">
+
+ <clustered>true</clustered>
+
+ <!--we kill the server process so don't need this set to true-->
+ <failover-on-shutdown>false</failover-on-shutdown>
+
+ <shared-store>true</shared-store>
+
+ <!-- Connectors -->
+
+ <connectors>
+ <connector name="netty-connector">
+ <factory-class>org.hornetq.core.remoting.impl.netty.NettyConnectorFactory</factory-class>
+ <param key="port" value="5445"/>
+ </connector>
+ </connectors>
+
+ <!-- Acceptors -->
+ <acceptors>
+ <acceptor name="netty-acceptor">
+ <factory-class>org.hornetq.core.remoting.impl.netty.NettyAcceptorFactory</factory-class>
+ <param key="port" value="5445"/>
+ </acceptor>
+ </acceptors>
+
+ <broadcast-groups>
+ <broadcast-group name="bg-group1">
+ <group-address>231.7.7.7</group-address>
+ <group-port>9876</group-port>
+ <broadcast-period>1000</broadcast-period>
+ <connector-ref>netty-connector</connector-ref>
+ </broadcast-group>
+ </broadcast-groups>
+
+ <discovery-groups>
+ <discovery-group name="dg-group1">
+ <group-address>231.7.7.7</group-address>
+ <group-port>9876</group-port>
+ <refresh-timeout>60000</refresh-timeout>
+ </discovery-group>
+ </discovery-groups>
+
+ <cluster-connections>
+ <cluster-connection name="my-cluster">
+ <address>jms</address>
+ <connector-ref>netty-connector</connector-ref>
+ <discovery-group-ref discovery-group-name="dg-group1"/>
+ </cluster-connection>
+ </cluster-connections>
+ <!-- Other config -->
+
+ <security-settings>
+ <!--security for example queue-->
+ <security-setting match="jms.queue.exampleQueue">
+ <permission type="createDurableQueue" roles="guest"/>
+ <permission type="deleteDurableQueue" roles="guest"/>
+ <permission type="createNonDurableQueue" roles="guest"/>
+ <permission type="deleteNonDurableQueue" roles="guest"/>
+ <permission type="consume" roles="guest"/>
+ <permission type="send" roles="guest"/>
+ </security-setting>
+ </security-settings>
+
+</configuration>
Added: trunk/examples/jms/stop-server-failover/server0/hornetq-jms.xml
===================================================================
--- trunk/examples/jms/stop-server-failover/server0/hornetq-jms.xml (rev 0)
+++ trunk/examples/jms/stop-server-failover/server0/hornetq-jms.xml 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,32 @@
+<configuration xmlns="urn:hornetq"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="urn:hornetq /schema/hornetq-jms.xsd">
+ <!--the connection factory used by the example-->
+ <connection-factory name="ConnectionFactory">
+ <connectors>
+ <connector-ref connector-name="netty-connector"/>
+ </connectors>
+
+ <entries>
+ <entry name="ConnectionFactory"/>
+ </entries>
+
+ <ha>true</ha>
+ <!-- Pause 1 second between connect attempts -->
+ <retry-interval>1000</retry-interval>
+
+ <!-- Multiply subsequent reconnect pauses by this multiplier. This can be used to
+ implement an exponential back-off. For our purposes we just set to 1.0 so each reconnect
+ pause is the same length -->
+ <retry-interval-multiplier>1.0</retry-interval-multiplier>
+
+ <!-- Try reconnecting an unlimited number of times (-1 means "unlimited") -->
+ <reconnect-attempts>-1</reconnect-attempts>
+ </connection-factory>
+
+ <!--the queue used by the example-->
+ <queue name="exampleQueue">
+ <entry name="/queue/exampleQueue"/>
+ </queue>
+
+</configuration>
Added: trunk/examples/jms/stop-server-failover/server0/hornetq-users.xml
===================================================================
--- trunk/examples/jms/stop-server-failover/server0/hornetq-users.xml (rev 0)
+++ trunk/examples/jms/stop-server-failover/server0/hornetq-users.xml 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,7 @@
+<configuration xmlns="urn:hornetq" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="urn:hornetq /schema/hornetq-users.xsd">
+ <!-- the default user. this is used where username is null-->
+ <defaultuser name="guest" password="guest">
+ <role name="guest"/>
+ </defaultuser>
+</configuration>
\ No newline at end of file
Added: trunk/examples/jms/stop-server-failover/server1/client-jndi.properties
===================================================================
--- trunk/examples/jms/stop-server-failover/server1/client-jndi.properties (rev 0)
+++ trunk/examples/jms/stop-server-failover/server1/client-jndi.properties 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,3 @@
+java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
+java.naming.provider.url=jnp://localhost:2099
+java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
Added: trunk/examples/jms/stop-server-failover/server1/hornetq-beans.xml
===================================================================
--- trunk/examples/jms/stop-server-failover/server1/hornetq-beans.xml (rev 0)
+++ trunk/examples/jms/stop-server-failover/server1/hornetq-beans.xml 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+ ~ Copyright 2009 Red Hat, Inc.
+ ~ Red Hat 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.
+ -->
+
+<deployment xmlns="urn:jboss:bean-deployer:2.0">
+
+ <bean name="Naming" class="org.jnp.server.NamingBeanImpl"/>
+
+ <!-- JNDI server. Disable this if you don't want JNDI -->
+ <bean name="JNDIServer" class="org.jnp.server.Main">
+ <property name="namingInfo">
+ <inject bean="Naming"/>
+ </property>
+ <property name="port">2099</property>
+ <property name="bindAddress">localhost</property>
+ <property name="rmiPort">2098</property>
+ <property name="rmiBindAddress">localhost</property>
+ </bean>
+
+ <!-- MBean server -->
+ <bean name="MBeanServer" class="javax.management.MBeanServer">
+ <constructor factoryClass="java.lang.management.ManagementFactory"
+ factoryMethod="getPlatformMBeanServer"/>
+ </bean>
+
+ <!-- The core configuration -->
+ <bean name="Configuration" class="org.hornetq.core.config.impl.FileConfiguration"/>
+
+ <!-- The security manager -->
+ <bean name="HornetQSecurityManager" class="org.hornetq.spi.core.security.HornetQSecurityManagerImpl">
+ <start ignored="true"/>
+ <stop ignored="true"/>
+ </bean>
+
+ <!-- The core server -->
+ <bean name="HornetQServer" class="org.hornetq.core.server.impl.HornetQServerImpl">
+ <constructor>
+ <parameter>
+ <inject bean="Configuration"/>
+ </parameter>
+ <parameter>
+ <inject bean="MBeanServer"/>
+ </parameter>
+ <parameter>
+ <inject bean="HornetQSecurityManager"/>
+ </parameter>
+ </constructor>
+ <start ignored="true"/>
+ <stop ignored="true"/>
+ </bean>
+
+ <!-- The JMS server -->
+ <bean name="JMSServerManager" class="org.hornetq.jms.server.impl.JMSServerManagerImpl">
+ <constructor>
+ <parameter>
+ <inject bean="HornetQServer"/>
+ </parameter>
+ </constructor>
+ </bean>
+
+</deployment>
Added: trunk/examples/jms/stop-server-failover/server1/hornetq-configuration.xml
===================================================================
--- trunk/examples/jms/stop-server-failover/server1/hornetq-configuration.xml (rev 0)
+++ trunk/examples/jms/stop-server-failover/server1/hornetq-configuration.xml 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,75 @@
+<configuration xmlns="urn:hornetq"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="urn:hornetq ../../../src/schema/hornetq-configuration.xsd">
+
+ <clustered>true</clustered>
+
+ <backup>true</backup>
+
+ <!--we kill the server process so don't need this set to true-->
+ <failover-on-shutdown>false</failover-on-shutdown>
+
+ <shared-store>true</shared-store>
+
+ <!-- Connectors -->
+
+ <connectors>
+ <connector name="netty-connector">
+ <factory-class>org.hornetq.core.remoting.impl.netty.NettyConnectorFactory</factory-class>
+ <param key="port" value="5446"/>
+ </connector>
+ </connectors>
+
+ <!-- Acceptors -->
+ <acceptors>
+ <acceptor name="netty-acceptor">
+ <factory-class>org.hornetq.core.remoting.impl.netty.NettyAcceptorFactory</factory-class>
+ <param key="port" value="5446"/>
+ </acceptor>
+ </acceptors>
+
+ <broadcast-groups>
+ <broadcast-group name="bg-group1">
+ <group-address>231.7.7.7</group-address>
+ <group-port>9876</group-port>
+ <broadcast-period>1000</broadcast-period>
+ <connector-ref>netty-connector</connector-ref>
+ </broadcast-group>
+ </broadcast-groups>
+
+ <discovery-groups>
+ <discovery-group name="dg-group1">
+ <group-address>231.7.7.7</group-address>
+ <group-port>9876</group-port>
+ <refresh-timeout>60000</refresh-timeout>
+ </discovery-group>
+ </discovery-groups>
+
+ <cluster-connections>
+ <cluster-connection name="my-cluster">
+ <address>jms</address>
+ <connector-ref>netty-connector</connector-ref>
+ <discovery-group-ref discovery-group-name="dg-group1"/>
+ </cluster-connection>
+ </cluster-connections>
+
+ <large-messages-directory>../server0/data/large-messages</large-messages-directory>
+ <bindings-directory>../server0/data/bindings</bindings-directory>
+ <journal-directory>../server0/data/journal</journal-directory>
+ <paging-directory>../server0/data/paging</paging-directory>
+
+ <!-- Other config -->
+
+ <security-settings>
+ <!--security for example queue-->
+ <security-setting match="jms.queue.exampleQueue">
+ <permission type="createDurableQueue" roles="guest"/>
+ <permission type="deleteDurableQueue" roles="guest"/>
+ <permission type="createNonDurableQueue" roles="guest"/>
+ <permission type="deleteNonDurableQueue" roles="guest"/>
+ <permission type="consume" roles="guest"/>
+ <permission type="send" roles="guest"/>
+ </security-setting>
+ </security-settings>
+
+</configuration>
Added: trunk/examples/jms/stop-server-failover/server1/hornetq-jms.xml
===================================================================
--- trunk/examples/jms/stop-server-failover/server1/hornetq-jms.xml (rev 0)
+++ trunk/examples/jms/stop-server-failover/server1/hornetq-jms.xml 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,32 @@
+<configuration xmlns="urn:hornetq"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="urn:hornetq /schema/hornetq-jms.xsd">
+ <!--the connection factory used by the example-->
+ <connection-factory name="ConnectionFactory">
+ <connectors>
+ <connector-ref connector-name="netty-connector"/>
+ </connectors>
+
+ <entries>
+ <entry name="ConnectionFactory"/>
+ </entries>
+
+ <ha>true</ha>
+ <!-- Pause 1 second between connect attempts -->
+ <retry-interval>1000</retry-interval>
+
+ <!-- Multiply subsequent reconnect pauses by this multiplier. This can be used to
+ implement an exponential back-off. For our purposes we just set to 1.0 so each reconnect
+ pause is the same length -->
+ <retry-interval-multiplier>1.0</retry-interval-multiplier>
+
+ <!-- Try reconnecting an unlimited number of times (-1 means "unlimited") -->
+ <reconnect-attempts>-1</reconnect-attempts>
+ </connection-factory>
+
+ <!--the queue used by the example-->
+ <queue name="exampleQueue">
+ <entry name="/queue/exampleQueue"/>
+ </queue>
+
+</configuration>
Added: trunk/examples/jms/stop-server-failover/server1/hornetq-users.xml
===================================================================
--- trunk/examples/jms/stop-server-failover/server1/hornetq-users.xml (rev 0)
+++ trunk/examples/jms/stop-server-failover/server1/hornetq-users.xml 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,7 @@
+<configuration xmlns="urn:hornetq" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="urn:hornetq /schema/hornetq-users.xsd">
+ <!-- the default user. this is used where username is null-->
+ <defaultuser name="guest" password="guest">
+ <role name="guest"/>
+ </defaultuser>
+</configuration>
\ No newline at end of file
Added: trunk/examples/jms/stop-server-failover/src/org/hornetq/jms/example/StopServerFailoverExample.java
===================================================================
--- trunk/examples/jms/stop-server-failover/src/org/hornetq/jms/example/StopServerFailoverExample.java (rev 0)
+++ trunk/examples/jms/stop-server-failover/src/org/hornetq/jms/example/StopServerFailoverExample.java 2010-12-08 09:53:15 UTC (rev 10013)
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2009 Red Hat, Inc.
+ * Red Hat 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.hornetq.jms.example;
+
+import org.hornetq.common.example.HornetQExample;
+
+import javax.jms.*;
+import javax.naming.InitialContext;
+
+/**
+ * A simple example that demonstrates failover of the JMS connection from one node to another
+ * when the live server crashes using a JMS <em>non-transacted</em> session.
+ *
+ * @author <a href="mailto:jmesnil at redhat.com">Jeff Mesnil</a>
+ */
+public class StopServerFailoverExample extends HornetQExample
+{
+ public static void main(final String[] args)
+ {
+ new StopServerFailoverExample().run(args);
+ }
+
+ @Override
+ public boolean runExample() throws Exception
+ {
+ final int numMessages = 10;
+
+ Connection connection = null;
+
+ InitialContext initialContext = null;
+
+ try
+ {
+ // Step 1. Get an initial context for looking up JNDI from the server #1
+ initialContext = getContext(0);
+
+ // Step 2. Look up the JMS resources from JNDI
+ Queue queue = (Queue)initialContext.lookup("/queue/exampleQueue");
+ ConnectionFactory connectionFactory = (ConnectionFactory)initialContext.lookup("/ConnectionFactory");
+
+ // Step 3. Create a JMS Connection
+ connection = connectionFactory.createConnection();
+
+ // Step 4. Create a *non-transacted* JMS Session with client acknwoledgement
+ Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
+
+ // Step 5. Start the connection to ensure delivery occurs
+ connection.start();
+
+ // Step 6. Create a JMS MessageProducer and a MessageConsumer
+ MessageProducer producer = session.createProducer(queue);
+ MessageConsumer consumer = session.createConsumer(queue);
+
+ // Step 7. Send some messages to server #1, the live server
+ for (int i = 0; i < numMessages; i++)
+ {
+ TextMessage message = session.createTextMessage("This is text message " + i);
+ producer.send(message);
+ System.out.println("Sent message: " + message.getText());
+ }
+
+ // Step 8. Receive and acknowledge half of the sent messages
+ TextMessage message0 = null;
+ for (int i = 0; i < numMessages / 2; i++)
+ {
+ message0 = (TextMessage)consumer.receive(5000);
+ System.out.println("Got message: " + message0.getText());
+ }
+ message0.acknowledge();
+
+ // Step 9. Receive the 2nd half of the sent messages but *do not* acknowledge them yet
+ for (int i = numMessages / 2; i < numMessages; i++)
+ {
+ message0 = (TextMessage)consumer.receive(5000);
+ System.out.println("Got message: " + message0.getText());
+ }
+
+ // Step 10. Crash server #1, the live server, and wait a little while to make sure
+ // it has really crashed
+ Thread.sleep(2000);
+ System.out.println("stop the server by logging into jconsole");
+ System.in.read();
+
+ // Step 11. Acknowledging the 2nd half of the sent messages will fail as failover to the
+ // backup server has occured
+ try
+ {
+ message0.acknowledge();
+ }
+ catch (JMSException e)
+ {
+ System.err.println("Got exception while acknowledging message: " + e.getMessage());
+ }
+
+ // Step 12. Consume again the 2nd half of the messages again. Note that they are not considered as redelivered.
+ for (int i = numMessages / 2; i < numMessages; i++)
+ {
+ message0 = (TextMessage)consumer.receive(5000);
+ System.out.printf("Got message: %s (redelivered?: %s)\n", message0.getText(), message0.getJMSRedelivered());
+ }
+ message0.acknowledge();
+
+ return true;
+ }
+ finally
+ {
+ // Step 13. Be sure to close our resources!
+
+ if (connection != null)
+ {
+ connection.close();
+ }
+
+ if (initialContext != null)
+ {
+ initialContext.close();
+ }
+ }
+ }
+
+}
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