Google Git
Sign in
apache / activemq-web / c5128cb54cc0a025a473f516ad75d7df4e31c35f / . / redelivery-policy.html
blob: 76eff727bb83dd7ca6277635ff735b3796198489 [file] [log] [blame]
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!--
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.
-->
<html>
<head>
<link href="http://activemq.apache.org/styles/site.css" rel="stylesheet" type="text/css"/>
<link href="http://activemq.apache.org/styles/type-settings.css" rel="stylesheet" type="text/css"/>
<script src="http://activemq.apache.org/styles/prototype.js" type="text/javascript"></script>
<script src="http://activemq.apache.org/styles/rico.js" type="text/javascript"></script>
<script src="http://activemq.apache.org/styles/site.js" type="text/javascript"></script>
<style type="text/css">
.maincontent { overflow:hidden; }
</style>
<!--[if IE]>
<style type="text/css">
.maincontent { width:100%; }
</style>
<![endif]-->
<link href='http://activemq.apache.org/styles/highlighter/styles/shCore.css' rel='stylesheet' type='text/css' />
<link href='http://activemq.apache.org/styles/highlighter/styles/shThemeEclipse.css' rel='stylesheet' type='text/css' />
<script src='http://activemq.apache.org/styles/highlighter/scripts/shCore.js' type='text/javascript'></script>
<script src='http://activemq.apache.org/styles/highlighter/scripts/shBrushJava.js' type='text/javascript'></script>
<script type="text/javascript">
SyntaxHighlighter.defaults['toolbar'] = false;
SyntaxHighlighter.all();
</script>
<title>
Apache ActiveMQ &#8482; -- Redelivery Policy
</title>
</head>
<body>
<div class="white_box">
<div class="header">
<div class="header_l">
<div class="header_r">
</div>
</div>
</div>
<div class="content">
<div class="content_l">
<div class="content_r">
<div>
<!-- Banner -->
<div id="asf_logo">
<div id="activemq_logo">
<a shape="rect" style="float:left; width:280px;display:block;text-indent:-5000px;text-decoration:none;line-height:60px; margin-top:10px; margin-left:100px;" href="http://activemq.apache.org" title="The most popular and powerful open source Message Broker">ActiveMQ</a>
<a shape="rect" style="float:right; width:210px;display:block;text-indent:-5000px;text-decoration:none;line-height:60px; margin-top:15px; margin-right:10px;" href="http://www.apache.org" title="The Apache Software Foundation">ASF</a>
</div>
</div>
<div class="top_red_bar">
<div id="site-breadcrumbs">
<a href="features.html">Features</a>&nbsp;&gt;&nbsp;<a href="consumer-features.html">Consumer Features</a>&nbsp;&gt;&nbsp;<a href="redelivery-policy.html">Redelivery Policy</a>
</div>
<div id="site-quicklinks">
<p><a shape="rect" href="download.html">Download</a> | <a shape="rect" class="external-link" href="http://activemq.apache.org/maven/apidocs/index.html">JavaDocs</a> <a shape="rect" href="javadocs.html">More...</a> | <a shape="rect" href="source.html">Source</a> | <a shape="rect" href="discussion-forums.html">Forums</a> | <a shape="rect" href="support.html">Support</a></p>
</div>
</div>
<table border="0">
<tbody>
<tr>
<td valign="top" width="100%">
<div class="wiki-content maincontent"><h2 id="RedeliveryPolicy-RedeliveryPolicy">Redelivery Policy</h2><p>Detail on when messages are redelivered to a client can be found in the <a shape="rect" href="message-redelivery-and-dlq-handling.html">Message Redelivery and DLQ Handling</a> section. You can configure the <a shape="rect" class="external-link" href="http://svn.apache.org/viewvc/activemq/trunk/activemq-client/src/main/java/org/apache/activemq/RedeliveryPolicy.java?view=markup">RedeliveryPolicy</a> on your <a shape="rect" class="external-link" href="http://svn.apache.org/viewvc/activemq/trunk/activemq-client/src/main/java/org/apache/activemq/ActiveMQConnectionFactory.java?view=markup">ActiveMQConnectionFactory</a> or <a shape="rect" class="external-link" href="http://svn.apache.org/viewvc/activemq/trunk/activemq-client/src/main/java/org/apache/activemq/ActiveMQConnection.java?view=markup">ActiveMQConnection</a> to customize exactly how you want the redelivery to work.</p><p>You can use Java code, Spring or the <a shape="rect" href="connection-configuration-uri.html">Connection Configuration URI</a> to customize this.</p><h3 id="RedeliveryPolicy-AvailableProperties">Available Properties</h3><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Property</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Default Value</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>backOffMultiplier</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>5</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The back-off multiplier.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>collisionAvoidanceFactor</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>0.15</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The percentage of range of collision avoidance if enabled.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>initialRedeliveryDelay</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>1000L</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The initial redelivery delay in milliseconds.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>maximumRedeliveries</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>6</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Sets the maximum number of times a message will be redelivered before it is considered a <strong>poisoned pill</strong> and returned to the broker so it can go to a Dead Letter Queue.</p><p>Set to <strong><code>-1</code></strong> for unlimited redeliveries.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>maximumRedeliveryDelay</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>-1</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Sets the maximum delivery delay that will be applied if the&#160;<strong><code>useExponentialBackOff</code></strong> option is set. (use value&#160;<strong><code>-1</code></strong> to define that no maximum be applied) (<span style="color: red;">v5.5</span>).</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>redeliveryDelay</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>1000L</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The delivery delay if&#160;<strong><code>initialRedeliveryDelay=0</code></strong> (<span style="color: red;">v5.4</span>).</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>useCollisionAvoidance</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Should the redelivery policy use collision avoidance.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>useExponentialBackOff</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Should exponential back-off be used, i.e., to exponentially increase the timeout.</p></td></tr></tbody></table></div><h2 id="RedeliveryPolicy-RedeliveryPolicyperDestination">RedeliveryPolicy per Destination</h2><p>As of ActiveMQ v5.7.0 you can now configure a <a shape="rect" class="external-link" href="http://svn.apache.org/viewvc/activemq/trunk/activemq-client/src/main/java/org/apache/activemq/RedeliveryPolicy.java?view=markup">RedeliveryPolicy</a> on a per-destination bases. The&#160;<strong><code>ActiveMQConnection</code></strong> factory class now exposes a <a shape="rect" class="external-link" href="http://svn.apache.org/viewvc/activemq/trunk/activemq-client/src/main/java/org/apache/activemq/broker/region/policy/RedeliveryPolicyMap.java?view=markup">RedeliveryPolicyMap</a> property that allows to assign a RedeliveryPolicy using named destinations or using destination wildcards. The code snipped below shows how to configure a different <a shape="rect" class="external-link" href="http://svn.apache.org/viewvc/activemq/trunk/activemq-client/src/main/java/org/apache/activemq/RedeliveryPolicy.java?view=markup">RedeliveryPolicy</a> for Topics and Queues.</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="brush: java; gutter: false; theme: Default" style="font-size:12px;"> ActiveMQConnection connection ... // Create a connection
RedeliveryPolicy queuePolicy = new RedeliveryPolicy();
queuePolicy.setInitialRedeliveryDelay(0);
queuePolicy.setRedeliveryDelay(1000);
queuePolicy.setUseExponentialBackOff(false);
queuePolicy.setMaximumRedeliveries(2);
RedeliveryPolicy topicPolicy = new RedeliveryPolicy();
topicPolicy.setInitialRedeliveryDelay(0);
topicPolicy.setRedeliveryDelay(1000);
topicPolicy.setUseExponentialBackOff(false);
topicPolicy.setMaximumRedeliveries(3);
// Receive a message with the JMS API
RedeliveryPolicyMap map = connection.getRedeliveryPolicyMap();
map.put(new ActiveMQTopic("&gt;"), topicPolicy);
map.put(new ActiveMQQueue("&gt;"), queuePolicy);
</pre>
</div></div></div>
</td>
<td valign="top">
<div class="navigation">
<div class="navigation_top">
<div class="navigation_bottom">
<h3 id="Navigation-Overviewhttps://cwiki.apache.org/confluence/pages/viewpage.action?pageId=35985"><a shape="rect" href="overview.html">Overview</a></h3><ul class="alternate"><li><a shape="rect" href="index.html">Index</a></li><li><a shape="rect" href="news.html">News</a></li><li><a shape="rect" href="new-features.html">New Features</a></li><li><a shape="rect" href="getting-started.html">Getting Started</a></li><li><a shape="rect" href="faq.html">FAQ</a></li><li><a shape="rect" href="articles.html">Articles</a></li><li><a shape="rect" href="books.html">Books</a></li><li><a shape="rect" href="download.html">Download</a></li><li><a shape="rect" class="external-link" href="http://www.apache.org/licenses/">License</a></li></ul><h3 id="Navigation-Search">Search</h3><div>
<form enctype="application/x-www-form-urlencoded" method="get" action="http://www.google.com/search" style="font-size: 10px;">
<input type="hidden" name="ie" value="UTF-8">
<input type="hidden" name="oe" value="UTF-8">
<input maxlength="255" type="text" name="q" size="15" value="value"><br clear="none">
<input type="submit" name="btnG" value="Search">
<input type="hidden" name="domains" value="activemq.apache.org">
<input type="hidden" name="sitesearch" value="activemq.apache.org">
</form>
</div>
<h3 id="Navigation-SubProjects">Sub Projects</h3><ul class="alternate"><li><a shape="rect" class="external-link" href="http://activemq.apache.org/artemis/">Artemis</a></li><li><a shape="rect" class="external-link" href="http://activemq.apache.org/apollo" title="ActiveMQ Apollo">Apollo</a></li><li><a shape="rect" class="external-link" href="http://activemq.apache.org/cms/">CMS</a></li><li><a shape="rect" class="external-link" href="http://activemq.apache.org/nms/" title="NMS is the .Net Messaging API">NMS</a></li></ul><h3 id="Navigation-Communityhttps://cwiki.apache.org/confluence/pages/viewpage.action?pageId=36130"><a shape="rect" href="community.html">Community</a></h3><ul class="alternate"><li><a shape="rect" href="support.html">Support</a></li><li><a shape="rect" href="contributing.html">Contributing</a></li><li><a shape="rect" href="discussion-forums.html">Discussion Forums</a></li><li><a shape="rect" href="mailing-lists.html">Mailing Lists</a></li><li><a shape="rect" href="irc.html">IRC</a></li><li><a shape="rect" class="external-link" href="http://javabot.evanchooly.com/logs/%23apache-activemq/today" rel="nofollow">IRC Log</a></li><li><a shape="rect" href="security-advisories.html">Security Advisories</a></li><li><a shape="rect" href="site.html">Site</a></li><li><a shape="rect" class="external-link" href="http://www.apache.org/foundation/sponsorship.html">Sponsorship</a></li><li><a shape="rect" href="projects-using-activemq.html">Projects Using ActiveMQ</a></li><li><a shape="rect" href="users.html">Users</a></li><li><a shape="rect" href="team.html">Team</a></li><li><a shape="rect" href="thanks.html">Thanks</a></li></ul><h3 id="Navigation-Featureshttps://cwiki.apache.org/confluence/pages/viewpage.action?pageId=35883"><a shape="rect" href="features.html">Features</a></h3><ul class="alternate"><li><a shape="rect" href="advisory-message.html">Advisory Message</a></li><li><a shape="rect" href="clustering.html">Clustering</a></li><li><a shape="rect" href="cross-language-clients.html">Cross Language Clients</a></li><li><a shape="rect" href="enterprise-integration-patterns.html">Enterprise Integration Patterns</a></li><li><a shape="rect" href="jmx.html">JMX</a></li><li><a shape="rect" href="jms-to-jms-bridge.html">JMS to JMS Bridge</a></li><li><a shape="rect" href="masterslave.html">MasterSlave</a></li><li><a shape="rect" href="message-groups.html">Message Groups</a></li><li><a shape="rect" href="networks-of-brokers.html">Networks of Brokers</a></li><li><a shape="rect" href="performance.html">Performance</a></li><li><a shape="rect" href="persistence.html">Persistence</a></li><li><a shape="rect" href="security.html">Security</a></li><li><a shape="rect" href="virtual-destinations.html">Virtual Destinations</a></li><li><a shape="rect" href="visualisation.html">Visualisation</a></li><li><a shape="rect" href="features.html">More ...</a></li></ul><h3 id="Navigation-Connectivityhttps://cwiki.apache.org/confluence/pages/viewpage.action?pageId=36167"><a shape="rect" href="connectivity.html">Connectivity</a></h3><ul class="alternate"><li><a shape="rect" href="ajax.html">Ajax</a></li><li><a shape="rect" href="amqp.html">AMQP</a></li><li><a shape="rect" href="axis-and-cxf-support.html">Axis and CXF Support</a></li><li><a shape="rect" href="c-integration.html">C Integration</a></li><li><a shape="rect" href="activemq-c-clients.html">C++</a></li><li><a shape="rect" class="external-link" href="http://activemq.apache.org/nms/">C# and .Net Integration</a></li><li><a shape="rect" class="external-link" href="http://activemq.apache.org/cms/">CMS</a></li><li><a shape="rect" href="j2ee.html">J2EE</a></li><li><a shape="rect" href="jboss-integration.html">JBoss Integration</a></li><li><a shape="rect" class="external-link" href="http://docs.codehaus.org/display/JETTY/Integrating+with+ActiveMQ" rel="nofollow">Jetty</a></li><li><a shape="rect" href="jndi-support.html">JNDI Support</a></li><li><a shape="rect" class="external-link" href="http://activemq.apache.org/nms/" title="NMS is the .Net Messaging API">NMS</a></li><li><a shape="rect" href="rest.html">REST</a></li><li><a shape="rect" href="rss-and-atom.html">RSS and Atom</a></li><li><a shape="rect" href="spring-support.html">Spring Support</a></li><li><a shape="rect" href="stomp.html">Stomp</a></li><li><a shape="rect" href="tomcat.html">Tomcat</a></li><li><a shape="rect" href="unix-service.html">Unix Service</a></li><li><a shape="rect" href="weblogic-integration.html">WebLogic Integration</a></li><li><a shape="rect" href="xmpp.html">XMPP</a></li><li><a shape="rect" href="connectivity.html">More ...</a></li></ul><h3 id="Navigation-UsingActiveMQ5https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=71176"><a shape="rect" href="using-activemq-5.html">Using ActiveMQ 5</a></h3><ul class="alternate"><li><a shape="rect" href="version-5-getting-started.html">Getting Started</a></li><li><a shape="rect" href="version-5-initial-configuration.html">Initial Configuration</a></li><li><a shape="rect" href="version-5-run-broker.html">Running a Broker</a></li><li><a shape="rect" href="how-do-i-embed-a-broker-inside-a-connection.html">Embedded Brokers</a></li><li><a shape="rect" href="activemq-command-line-tools-reference.html">Command Line Tools</a></li><li><a shape="rect" href="configuring-version-5-transports.html">Configuring Transports</a></li><li><a shape="rect" href="version-5-examples.html">Examples</a></li><li><a shape="rect" href="version-5-web-samples.html">Web Samples</a></li><li><a shape="rect" href="how-can-i-monitor-activemq.html">Monitoring the Broker</a></li><li><a shape="rect" href="version-5-xml-configuration.html">Xml Configuration</a></li><li><a shape="rect" href="xml-reference.html">Xml Reference</a></li><li><a shape="rect" href="using-activemq-5.html">More ...</a></li></ul><h3 id="Navigation-Toolshttps://cwiki.apache.org/confluence/pages/viewpage.action?pageId=35912"><a shape="rect" href="tools.html">Tools</a></h3><ul class="alternate"><li><a shape="rect" href="web-console.html">Web Console</a></li><li><a shape="rect" href="activemq-performance-module-users-manual.html">Maven2 Performance Plugin</a></li></ul><h3 id="Navigation-Supporthttps://cwiki.apache.org/confluence/pages/viewpage.action?pageId=35919"><a shape="rect" href="support.html">Support</a></h3><ul class="alternate"><li><a shape="rect" class="external-link" href="http://issues.apache.org/jira/browse/AMQ">Issues</a></li><li><a shape="rect" class="external-link" href="http://issues.apache.org/activemq/browse/AMQ?report=com.atlassian.jira.plugin.system.project:roadmap-panel">Roadmap</a></li><li><a shape="rect" class="external-link" href="http://issues.apache.org/activemq/browse/AMQ?report=com.atlassian.jira.plugin.system.project:changelog-panel">Change log</a></li></ul><h3 id="Navigation-Developershttps://cwiki.apache.org/confluence/pages/viewpage.action?pageId=35903"><a shape="rect" href="developers.html">Developers</a></h3><ul class="alternate"><li><a shape="rect" href="source.html">Source</a></li><li><a shape="rect" href="building.html">Building</a></li><li><a shape="rect" href="developer-guide.html">Developer Guide</a></li><li><a shape="rect" href="becoming-a-committer.html">Becoming a committer</a></li><li><a shape="rect" href="code-overview.html">Code Overview</a></li><li><a shape="rect" href="wire-protocol.html">Wire Protocol</a></li><li><a shape="rect" href="release-guide.html">Release Guide</a></li></ul><h3 id="Navigation-Tests">Tests</h3><ul class="alternate"><li><a shape="rect" href="activemq-performance-module-users-manual.html">Maven2 Performance Plugin</a></li><li><a shape="rect" href="benchmark-tests.html">Benchmark Tests</a></li><li><a shape="rect" href="jmeter-system-tests.html">JMeter System Tests</a></li><li><a shape="rect" href="jmeter-performance-tests.html">JMeter Performance Tests</a></li><li><a shape="rect" href="integration-tests.html">Integration Tests</a></li></ul><h3 id="Navigation-ProjectReports">Project Reports</h3><ul class="alternate"><li><a shape="rect" href="junit-reports.html">JUnit Reports</a></li><li><a shape="rect" href="source-xref.html">Source XRef</a></li><li><a shape="rect" href="test-source-xref.html">Test Source XRef</a></li><li><a shape="rect" href="xml-reference.html">Xml Reference</a></li></ul>
</div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
<div class="bottom_red_bar"></div>
</div>
</div>
</div>
</div>
<div class="black_box">
<div class="footer">
<div class="footer_l">
<div class="footer_r">
<div>
<a href="http://activemq.apache.org/privacy-policy.html">Privacy Policy</a> -
(<a href="https://cwiki.apache.org/confluence/pages/editpage.action?pageId=48290">edit this page</a>)
</div>
</div>
</div>
</div>
</div>
</div>
<div class="design_attribution">
&copy; 2004-2011 The Apache Software Foundation.
<br/>
Apache ActiveMQ, ActiveMQ, Apache, the Apache feather logo, and the Apache ActiveMQ project logo are trademarks of The Apache Software Foundation. All other marks mentioned may be trademarks or registered trademarks of their respective owners.
<br/>
<a href="http://hiramchirino.com">Graphic Design By Hiram</a>
</div>
<!-- delay the loading of large javascript files to the end so that they don't interfere with the loading of page content -->
<span style="display: none">
<script type="text/javascript">
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
</script>
<script type="text/javascript">
var pageTracker = _gat._getTracker("UA-1347593-1");
pageTracker._initData();
pageTracker._trackPageview();
</script>
</span>
</body>
</html>