| |
| <!DOCTYPE HTML> |
| <html lang="" > |
| <head> |
| <title>Large Messages ยท ActiveMQ Artemis Documentation</title> |
| <meta charset="UTF-8"> |
| <meta http-equiv="X-UA-Compatible" content="IE=edge" /> |
| <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> |
| <meta name="description" content=""> |
| <meta name="generator" content="GitBook 3.1.1"> |
| |
| |
| |
| |
| <link rel="stylesheet" href="gitbook/style.css"> |
| |
| |
| |
| |
| <link rel="stylesheet" href="gitbook/gitbook-plugin-highlight/website.css"> |
| |
| |
| |
| <link rel="stylesheet" href="gitbook/gitbook-plugin-search/search.css"> |
| |
| |
| |
| <link rel="stylesheet" href="gitbook/gitbook-plugin-fontsettings/website.css"> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <meta name="HandheldFriendly" content="true"/> |
| <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> |
| <meta name="apple-mobile-web-app-capable" content="yes"> |
| <meta name="apple-mobile-web-app-status-bar-style" content="black"> |
| <link rel="apple-touch-icon-precomposed" sizes="152x152" href="gitbook/images/apple-touch-icon-precomposed-152.png"> |
| <link rel="shortcut icon" href="gitbook/images/favicon.ico" type="image/x-icon"> |
| |
| |
| <link rel="next" href="paging.html" /> |
| |
| |
| <link rel="prev" href="message-expiry.html" /> |
| |
| |
| </head> |
| <body> |
| |
| <div class="book"> |
| <div class="book-summary"> |
| |
| |
| <div id="book-search-input" role="search"> |
| <input type="text" placeholder="Type to search" /> |
| </div> |
| |
| |
| <nav role="navigation"> |
| |
| |
| |
| <ul class="summary"> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <li class="chapter " data-level="1.1" data-path="./"> |
| |
| <a href="./"> |
| |
| |
| Introduction |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.2" data-path="notice.html"> |
| |
| <a href="notice.html"> |
| |
| |
| Legal Notice |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.3" data-path="preface.html"> |
| |
| <a href="preface.html"> |
| |
| |
| Preface |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.4" data-path="project-info.html"> |
| |
| <a href="project-info.html"> |
| |
| |
| Project Info |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.5" data-path="versions.html"> |
| |
| <a href="versions.html"> |
| |
| |
| Versions |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.6" data-path="messaging-concepts.html"> |
| |
| <a href="messaging-concepts.html"> |
| |
| |
| Messaging Concepts |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.7" data-path="architecture.html"> |
| |
| <a href="architecture.html"> |
| |
| |
| Architecture |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.8" data-path="using-server.html"> |
| |
| <a href="using-server.html"> |
| |
| |
| Using the Server |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.9" data-path="upgrading.html"> |
| |
| <a href="upgrading.html"> |
| |
| |
| Upgrading |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.10" data-path="address-model.html"> |
| |
| <a href="address-model.html"> |
| |
| |
| Address Model |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.11" data-path="protocols-interoperability.html"> |
| |
| <a href="protocols-interoperability.html"> |
| |
| |
| Protocols and Interoperability |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.12" data-path="amqp.html"> |
| |
| <a href="amqp.html"> |
| |
| |
| AMQP |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.13" data-path="mqtt.html"> |
| |
| <a href="mqtt.html"> |
| |
| |
| MQTT |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.14" data-path="stomp.html"> |
| |
| <a href="stomp.html"> |
| |
| |
| STOMP |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.15" data-path="openwire.html"> |
| |
| <a href="openwire.html"> |
| |
| |
| OpenWire |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.16" data-path="core.html"> |
| |
| <a href="core.html"> |
| |
| |
| Core |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.17" data-path="jms-core-mapping.html"> |
| |
| <a href="jms-core-mapping.html"> |
| |
| |
| Mapping JMS Concepts to the Core API |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.18" data-path="using-jms.html"> |
| |
| <a href="using-jms.html"> |
| |
| |
| Using JMS |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.19" data-path="client-classpath.html"> |
| |
| <a href="client-classpath.html"> |
| |
| |
| The Client Classpath |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.20" data-path="examples.html"> |
| |
| <a href="examples.html"> |
| |
| |
| Examples |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.21" data-path="wildcard-routing.html"> |
| |
| <a href="wildcard-routing.html"> |
| |
| |
| Routing Messages With Wild Cards |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.22" data-path="wildcard-syntax.html"> |
| |
| <a href="wildcard-syntax.html"> |
| |
| |
| Wildcard Syntax |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.23" data-path="filter-expressions.html"> |
| |
| <a href="filter-expressions.html"> |
| |
| |
| Filter Expressions |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.24" data-path="persistence.html"> |
| |
| <a href="persistence.html"> |
| |
| |
| Persistence |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.25" data-path="configuring-transports.html"> |
| |
| <a href="configuring-transports.html"> |
| |
| |
| Configuring Transports |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.26" data-path="config-reload.html"> |
| |
| <a href="config-reload.html"> |
| |
| |
| Configuration Reload |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.27" data-path="connection-ttl.html"> |
| |
| <a href="connection-ttl.html"> |
| |
| |
| Detecting Dead Connections |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.28" data-path="slow-consumers.html"> |
| |
| <a href="slow-consumers.html"> |
| |
| |
| Detecting Slow Consumers |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.29" data-path="network-isolation.html"> |
| |
| <a href="network-isolation.html"> |
| |
| |
| Avoiding Network Isolation |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.30" data-path="critical-analysis.html"> |
| |
| <a href="critical-analysis.html"> |
| |
| |
| Detecting Broker Issues (Critical Analysis) |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.31" data-path="transaction-config.html"> |
| |
| <a href="transaction-config.html"> |
| |
| |
| Resource Manager Configuration |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.32" data-path="flow-control.html"> |
| |
| <a href="flow-control.html"> |
| |
| |
| Flow Control |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.33" data-path="send-guarantees.html"> |
| |
| <a href="send-guarantees.html"> |
| |
| |
| Guarantees of sends and commits |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.34" data-path="undelivered-messages.html"> |
| |
| <a href="undelivered-messages.html"> |
| |
| |
| Message Redelivery and Undelivered Messages |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.35" data-path="message-expiry.html"> |
| |
| <a href="message-expiry.html"> |
| |
| |
| Message Expiry |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter active" data-level="1.36" data-path="large-messages.html"> |
| |
| <a href="large-messages.html"> |
| |
| |
| Large Messages |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.37" data-path="paging.html"> |
| |
| <a href="paging.html"> |
| |
| |
| Paging |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.38" data-path="scheduled-messages.html"> |
| |
| <a href="scheduled-messages.html"> |
| |
| |
| Scheduled Messages |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.39" data-path="last-value-queues.html"> |
| |
| <a href="last-value-queues.html"> |
| |
| |
| Last-Value Queues |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.40" data-path="ring-queues.html"> |
| |
| <a href="ring-queues.html"> |
| |
| |
| Ring Queues |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.41" data-path="retroactive-addresses.html"> |
| |
| <a href="retroactive-addresses.html"> |
| |
| |
| Retroactive Addresses |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.42" data-path="exclusive-queues.html"> |
| |
| <a href="exclusive-queues.html"> |
| |
| |
| Exclusive Queues |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.43" data-path="message-grouping.html"> |
| |
| <a href="message-grouping.html"> |
| |
| |
| Message Grouping |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.44" data-path="consumer-priority.html"> |
| |
| <a href="consumer-priority.html"> |
| |
| |
| Consumer Priority |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.45" data-path="pre-acknowledge.html"> |
| |
| <a href="pre-acknowledge.html"> |
| |
| |
| Extra Acknowledge Modes |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.46" data-path="management.html"> |
| |
| <a href="management.html"> |
| |
| |
| Management |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.47" data-path="management-console.html"> |
| |
| <a href="management-console.html"> |
| |
| |
| Management Console |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.48" data-path="metrics.html"> |
| |
| <a href="metrics.html"> |
| |
| |
| Metrics |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.49" data-path="security.html"> |
| |
| <a href="security.html"> |
| |
| |
| Security |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.50" data-path="masking-passwords.html"> |
| |
| <a href="masking-passwords.html"> |
| |
| |
| Masking Passwords |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.51" data-path="broker-plugins.html"> |
| |
| <a href="broker-plugins.html"> |
| |
| |
| Broker Plugins |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.52" data-path="resource-limits.html"> |
| |
| <a href="resource-limits.html"> |
| |
| |
| Resource Limits |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.53" data-path="jms-bridge.html"> |
| |
| <a href="jms-bridge.html"> |
| |
| |
| The JMS Bridge |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.54" data-path="client-reconnection.html"> |
| |
| <a href="client-reconnection.html"> |
| |
| |
| Client Reconnection and Session Reattachment |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.55" data-path="diverts.html"> |
| |
| <a href="diverts.html"> |
| |
| |
| Diverting and Splitting Message Flows |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.56" data-path="core-bridges.html"> |
| |
| <a href="core-bridges.html"> |
| |
| |
| Core Bridges |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.57" data-path="transformers.html"> |
| |
| <a href="transformers.html"> |
| |
| |
| Transformers |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.58" data-path="duplicate-detection.html"> |
| |
| <a href="duplicate-detection.html"> |
| |
| |
| Duplicate Message Detection |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.59" data-path="clusters.html"> |
| |
| <a href="clusters.html"> |
| |
| |
| Clusters |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.60" data-path="federation.html"> |
| |
| <a href="federation.html"> |
| |
| |
| Federation |
| |
| </a> |
| |
| |
| |
| <ul class="articles"> |
| |
| |
| <li class="chapter " data-level="1.60.1" data-path="federation-address.html"> |
| |
| <a href="federation-address.html"> |
| |
| |
| Address Federation |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.60.2" data-path="federation-queue.html"> |
| |
| <a href="federation-queue.html"> |
| |
| |
| Queue Federation |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| |
| </ul> |
| |
| </li> |
| |
| <li class="chapter " data-level="1.61" data-path="ha.html"> |
| |
| <a href="ha.html"> |
| |
| |
| High Availability and Failover |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.62" data-path="graceful-shutdown.html"> |
| |
| <a href="graceful-shutdown.html"> |
| |
| |
| Graceful Server Shutdown |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.63" data-path="libaio.html"> |
| |
| <a href="libaio.html"> |
| |
| |
| Libaio Native Libraries |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.64" data-path="thread-pooling.html"> |
| |
| <a href="thread-pooling.html"> |
| |
| |
| Thread management |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.65" data-path="web-server.html"> |
| |
| <a href="web-server.html"> |
| |
| |
| Embedded Web Server |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.66" data-path="logging.html"> |
| |
| <a href="logging.html"> |
| |
| |
| Logging |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.67" data-path="rest.html"> |
| |
| <a href="rest.html"> |
| |
| |
| REST Interface |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.68" data-path="embedding-activemq.html"> |
| |
| <a href="embedding-activemq.html"> |
| |
| |
| Embedding the Broker |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.69" data-path="karaf.html"> |
| |
| <a href="karaf.html"> |
| |
| |
| Apache Karaf |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.70" data-path="tomcat.html"> |
| |
| <a href="tomcat.html"> |
| |
| |
| Apache Tomcat |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.71" data-path="spring-integration.html"> |
| |
| <a href="spring-integration.html"> |
| |
| |
| Spring Integration |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.72" data-path="cdi-integration.html"> |
| |
| <a href="cdi-integration.html"> |
| |
| |
| CDI Integration |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.73" data-path="intercepting-operations.html"> |
| |
| <a href="intercepting-operations.html"> |
| |
| |
| Intercepting Operations |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.74" data-path="data-tools.html"> |
| |
| <a href="data-tools.html"> |
| |
| |
| Data Tools |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.75" data-path="maven-plugin.html"> |
| |
| <a href="maven-plugin.html"> |
| |
| |
| Maven Plugin |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.76" data-path="unit-testing.html"> |
| |
| <a href="unit-testing.html"> |
| |
| |
| Unit Testing |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.77" data-path="perf-tuning.html"> |
| |
| <a href="perf-tuning.html"> |
| |
| |
| Troubleshooting and Performance Tuning |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| <li class="chapter " data-level="1.78" data-path="configuration-index.html"> |
| |
| <a href="configuration-index.html"> |
| |
| |
| Configuration Reference |
| |
| </a> |
| |
| |
| |
| </li> |
| |
| |
| |
| |
| <li class="divider"></li> |
| |
| <li> |
| <a href="https://www.gitbook.com" target="blank" class="gitbook-link"> |
| Published with GitBook |
| </a> |
| </li> |
| </ul> |
| |
| |
| </nav> |
| |
| |
| </div> |
| |
| <div class="book-body"> |
| |
| <div class="body-inner"> |
| |
| |
| |
| <div class="book-header" role="navigation"> |
| |
| |
| <!-- Title --> |
| <h1> |
| <i class="fa fa-circle-o-notch fa-spin"></i> |
| <a href="." >Large Messages</a> |
| </h1> |
| </div> |
| |
| |
| |
| |
| <div class="page-wrapper" tabindex="-1" role="main"> |
| <div class="page-inner"> |
| |
| <div id="book-search-results"> |
| <div class="search-noresults"> |
| |
| <section class="normal markdown-section"> |
| |
| <h1 id="large-messages">Large Messages</h1> |
| <p>Apache ActiveMQ Artemis can be configured to store messages as files when these messages are beyond a configured value.</p> |
| <p>Instead of keeping these messages in memory ActiveMQ Artemis will hold just a thin object on the queues with a |
| reference to a file into a specific folder configured as large-messages-directory.</p> |
| <p>This is supported on Core Protocol and on the AMQP Protocol.</p> |
| <h2 id="configuring-the-server">Configuring the server</h2> |
| <p>Large messages are stored on a disk directory on the server side, as configured |
| on the main configuration file.</p> |
| <p>The configuration property <code>large-messages-directory</code> specifies where large |
| messages are stored. For JDBC persistence the <code>large-message-table</code> should be |
| configured.</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">configuration</span> <span class="hljs-attr">xmlns</span>=<span class="hljs-string">"urn:activemq"</span> |
| <span class="hljs-attr">xmlns:xsi</span>=<span class="hljs-string">"http://www.w3.org/2001/XMLSchema-instance"</span> |
| <span class="hljs-attr">xsi:schemaLocation</span>=<span class="hljs-string">"urn:activemq /schema/artemis-server.xsd"</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">core</span> <span class="hljs-attr">xmlns</span>=<span class="hljs-string">"urn:activemq:core"</span> <span class="hljs-attr">xmlns:xsi</span>=<span class="hljs-string">"http://www.w3.org/2001/XMLSchema-instance"</span> <span class="hljs-attr">xsi:schemaLocation</span>=<span class="hljs-string">"urn:activemq:core"</span>></span> |
| ... |
| <span class="hljs-tag"><<span class="hljs-name">large-messages-directory</span>></span>/data/large-messages<span class="hljs-tag"></<span class="hljs-name">large-messages-directory</span>></span> |
| ... |
| <span class="hljs-tag"></<span class="hljs-name">core</span>></span> |
| <span class="hljs-tag"></<span class="hljs-name">configuration</span>></span> |
| </code></pre> |
| <p>By default the large message directory is <code>data/largemessages</code> and |
| <code>large-message-table</code> is configured as "LARGE_MESSAGE_TABLE".</p> |
| <p>For the best performance we recommend using file store with large messages |
| directory stored on a different physical volume to the message journal or |
| paging directory.</p> |
| <h2 id="configuring-the-core-client">Configuring the Core Client</h2> |
| <p>Any message larger than a certain size is considered a large message. Large |
| messages will be split up and sent in fragments. This is determined by the URL |
| parameter <code>minLargeMessageSize</code></p> |
| <blockquote> |
| <p><strong>Note:</strong></p> |
| <p>Apache ActiveMQ Artemis messages are encoded using 2 bytes per character so |
| if the message data is filled with ASCII characters (which are 1 byte) the |
| size of the resulting Apache ActiveMQ Artemis message would roughly double. |
| This is important when calculating the size of a "large" message as it may |
| appear to be less than the <code>minLargeMessageSize</code> before it is sent, but it |
| then turns into a "large" message once it is encoded.</p> |
| </blockquote> |
| <p>The default value is 100KiB.</p> |
| <p><a href="configuring-transports.html#configuring-the-transport-directly-from-the-client">Configuring the transport directly from the client |
| side</a> |
| will provide more information on how to instantiate the core session factory or |
| JMS connection factory.</p> |
| <h2 id="compressed-large-messages-on-core-protocol">Compressed Large Messages on Core Protocol</h2> |
| <p>You can choose to send large messages in compressed form using |
| <code>compressLargeMessages</code> URL parameter.</p> |
| <p>If you specify the boolean URL parameter <code>compressLargeMessages</code> as true, The |
| system will use the ZIP algorithm to compress the message body as the message |
| is transferred to the server's side. Notice that there's no special treatment |
| at the server's side, all the compressing and uncompressing is done at the |
| client.</p> |
| <p>If the compressed size of a large message is below <code>minLargeMessageSize</code>, it is |
| sent to server as regular messages. This means that the message won't be |
| written into the server's large-message data directory, thus reducing the disk |
| I/O.</p> |
| <h2 id="streaming-large-messages-from-core-protocol">Streaming large messages from Core Protocol</h2> |
| <p>Apache ActiveMQ Artemis supports setting the body of messages using input and |
| output streams (<code>java.lang.io</code>)</p> |
| <p>These streams are then used directly for sending (input streams) and receiving |
| (output streams) messages.</p> |
| <p>When receiving messages there are 2 ways to deal with the output stream; you |
| may choose to block while the output stream is recovered using the method |
| <code>ClientMessage.saveOutputStream</code> or alternatively using the method |
| <code>ClientMessage.setOutputstream</code> which will asynchronously write the message to |
| the stream. If you choose the latter the consumer must be kept alive until the |
| message has been fully received.</p> |
| <p>You can use any kind of stream you like. The most common use case is to send |
| files stored in your disk, but you could also send things like JDBC Blobs, |
| <code>SocketInputStream</code>, things you recovered from <code>HTTPRequests</code> etc. Anything as |
| long as it implements <code>java.io.InputStream</code> for sending messages or |
| <code>java.io.OutputStream</code> for receiving them.</p> |
| <h3 id="streaming-over-core-api">Streaming over Core API</h3> |
| <p>The following table shows a list of methods available at <code>ClientMessage</code> which |
| are also available through JMS by the use of object properties.</p> |
| <table> |
| <thead> |
| <tr> |
| <th>Name</th> |
| <th>Description</th> |
| <th>JMS Equivalent</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td>setBodyInputStream(InputStream)</td> |
| <td>Set the InputStream used to read a message body when sending it.</td> |
| <td>JMS_AMQ_InputStream</td> |
| </tr> |
| <tr> |
| <td>setOutputStream(OutputStream)</td> |
| <td>Set the OutputStream that will receive the body of a message. This method does not block.</td> |
| <td>JMS_AMQ_OutputStream</td> |
| </tr> |
| <tr> |
| <td>saveOutputStream(OutputStream)</td> |
| <td>Save the body of the message to the <code>OutputStream</code>. It will block until the entire content is transferred to the <code>OutputStream</code>.</td> |
| <td>JMS_AMQ_SaveStream</td> |
| </tr> |
| </tbody> |
| </table> |
| <p>To set the output stream when receiving a core message:</p> |
| <pre><code class="lang-java">ClientMessage msg = consumer.receive(...); |
| |
| <span class="hljs-comment">// This will block here until the stream was transferred</span> |
| msg.saveOutputStream(someOutputStream); |
| |
| ClientMessage msg2 = consumer.receive(...); |
| |
| <span class="hljs-comment">// This will not wait the transfer to finish</span> |
| msg2.setOutputStream(someOtherOutputStream); |
| </code></pre> |
| <p>Set the input stream when sending a core message:</p> |
| <pre><code class="lang-java">ClientMessage msg = session.createMessage(); |
| msg.setInputStream(dataInputStream); |
| </code></pre> |
| <p>Notice also that for messages with more than 2GiB the getBodySize() will return |
| invalid values since this is an integer (which is also exposed to the JMS API). |
| On those cases you can use the message property _AMQ_LARGE_SIZE.</p> |
| <h3 id="streaming-over-jms">Streaming over JMS</h3> |
| <p>When using JMS, Apache ActiveMQ Artemis maps the streaming methods on the core |
| API (see ClientMessage API table above) by setting object properties . You can |
| use the method <code>Message.setObjectProperty</code> to set the input and output streams.</p> |
| <p>The <code>InputStream</code> can be defined through the JMS Object Property |
| JMS_AMQ_InputStream on messages being sent:</p> |
| <pre><code class="lang-java">BytesMessage message = session.createBytesMessage(); |
| |
| FileInputStream fileInputStream = <span class="hljs-keyword">new</span> FileInputStream(fileInput); |
| |
| BufferedInputStream bufferedInput = <span class="hljs-keyword">new</span> BufferedInputStream(fileInputStream); |
| |
| message.setObjectProperty(<span class="hljs-string">"JMS_AMQ_InputStream"</span>, bufferedInput); |
| |
| someProducer.send(message); |
| </code></pre> |
| <p>The <code>OutputStream</code> can be set through the JMS Object Property |
| JMS_AMQ_SaveStream on messages being received in a blocking way.</p> |
| <pre><code class="lang-java">BytesMessage messageReceived = (BytesMessage)messageConsumer.receive(<span class="hljs-number">120000</span>); |
| |
| File outputFile = <span class="hljs-keyword">new</span> File(<span class="hljs-string">"huge_message_received.dat"</span>); |
| |
| FileOutputStream fileOutputStream = <span class="hljs-keyword">new</span> FileOutputStream(outputFile); |
| |
| BufferedOutputStream bufferedOutput = <span class="hljs-keyword">new</span> BufferedOutputStream(fileOutputStream); |
| |
| <span class="hljs-comment">// This will block until the entire content is saved on disk</span> |
| messageReceived.setObjectProperty(<span class="hljs-string">"JMS_AMQ_SaveStream"</span>, bufferedOutput); |
| </code></pre> |
| <p>Setting the <code>OutputStream</code> could also be done in a non blocking way |
| using the property JMS_AMQ_OutputStream.</p> |
| <pre><code class="lang-java"><span class="hljs-comment">// This won't wait the stream to finish. You need to keep the consumer active.</span> |
| messageReceived.setObjectProperty(<span class="hljs-string">"JMS_AMQ_OutputStream"</span>, bufferedOutput); |
| </code></pre> |
| <blockquote> |
| <p><strong>Note:</strong></p> |
| <p>When using JMS, Streaming large messages are only supported on |
| <code>StreamMessage</code> and <code>BytesMessage</code>.</p> |
| </blockquote> |
| <h3 id="streaming-alternative-on-core-protocol">Streaming Alternative on Core Protocol</h3> |
| <p>If you choose not to use the <code>InputStream</code> or <code>OutputStream</code> capability of |
| Apache ActiveMQ Artemis You could still access the data directly in an |
| alternative fashion.</p> |
| <p>On the Core API just get the bytes of the body as you normally would.</p> |
| <pre><code class="lang-java">ClientMessage msg = consumer.receive(); |
| |
| <span class="hljs-keyword">byte</span>[] bytes = <span class="hljs-keyword">new</span> <span class="hljs-keyword">byte</span>[<span class="hljs-number">1024</span>]; |
| <span class="hljs-keyword">for</span> (<span class="hljs-keyword">int</span> i = <span class="hljs-number">0</span> ; i < msg.getBodySize(); i += bytes.length) |
| { |
| msg.getBody().readBytes(bytes); |
| <span class="hljs-comment">// Whatever you want to do with the bytes</span> |
| } |
| </code></pre> |
| <p>If using JMS API, <code>BytesMessage</code> and <code>StreamMessage</code> also supports it |
| transparently.</p> |
| <pre><code class="lang-java">BytesMessage rm = (BytesMessage)cons.receive(<span class="hljs-number">10000</span>); |
| |
| <span class="hljs-keyword">byte</span> data[] = <span class="hljs-keyword">new</span> <span class="hljs-keyword">byte</span>[<span class="hljs-number">1024</span>]; |
| |
| <span class="hljs-keyword">for</span> (<span class="hljs-keyword">int</span> i = <span class="hljs-number">0</span>; i < rm.getBodyLength(); i += <span class="hljs-number">1024</span>) |
| { |
| <span class="hljs-keyword">int</span> numberOfBytes = rm.readBytes(data); |
| <span class="hljs-comment">// Do whatever you want with the data</span> |
| } |
| </code></pre> |
| <h2 id="configuring-amqp-acceptor">Configuring AMQP Acceptor</h2> |
| <p>You can configure the property <code>amqpMinLargeMessageSize</code> at the acceptor.</p> |
| <p>The default value is 102400 (100KBytes).</p> |
| <p>Setting it to -1 will disable large message support.</p> |
| <p><strong>Warning:</strong> setting amqpMinLargeMessageSize to -1, your AMQP message might be stored as a Core Large Message if the |
| size of the message does not fit into the journal. This is the former semantic of the broker and it is kept this way for |
| compatibility reasons.</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">acceptors</span>></span> |
| <span class="hljs-comment"><!-- AMQP Acceptor. Listens on default AMQP port for AMQP traffic.--></span> |
| <span class="hljs-tag"><<span class="hljs-name">acceptor</span> <span class="hljs-attr">name</span>=<span class="hljs-string">"amqp"</span>></span>tcp://0.0.0.0:5672?; ..... amqpMinLargeMessageSize=102400; .... <span class="hljs-tag"></<span class="hljs-name">acceptor</span>></span> |
| <span class="hljs-tag"></<span class="hljs-name">acceptors</span>></span> |
| </code></pre> |
| <h2 id="large-message-example">Large message example</h2> |
| <p>Please see the <a href="examples.html#large-message">Large Message Example</a> which shows |
| how large messages are configured and used with JMS.</p> |
| |
| |
| </section> |
| |
| </div> |
| <div class="search-results"> |
| <div class="has-results"> |
| |
| <h1 class="search-results-title"><span class='search-results-count'></span> results matching "<span class='search-query'></span>"</h1> |
| <ul class="search-results-list"></ul> |
| |
| </div> |
| <div class="no-results"> |
| |
| <h1 class="search-results-title">No results matching "<span class='search-query'></span>"</h1> |
| |
| </div> |
| </div> |
| </div> |
| |
| </div> |
| </div> |
| |
| </div> |
| |
| |
| |
| <a href="message-expiry.html" class="navigation navigation-prev " aria-label="Previous page: Message Expiry"> |
| <i class="fa fa-angle-left"></i> |
| </a> |
| |
| |
| <a href="paging.html" class="navigation navigation-next " aria-label="Next page: Paging"> |
| <i class="fa fa-angle-right"></i> |
| </a> |
| |
| |
| |
| </div> |
| |
| <script> |
| var gitbook = gitbook || []; |
| gitbook.push(function() { |
| gitbook.page.hasChanged({"page":{"title":"Large Messages","level":"1.36","depth":1,"next":{"title":"Paging","level":"1.37","depth":1,"path":"paging.md","ref":"paging.md","articles":[]},"previous":{"title":"Message Expiry","level":"1.35","depth":1,"path":"message-expiry.md","ref":"message-expiry.md","articles":[]},"dir":"ltr"},"config":{"plugins":[],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"highlight":{},"search":{},"lunr":{"maxIndexSize":1000000},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"fontsettings":{"theme":"white","family":"sans","size":2},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false}},"github":"apache/activemq-artemis","theme":"default","githubHost":"https://github.com/","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"ActiveMQ Artemis Documentation","links":{"home":"http://activemq.apache.org/artemis","issues":"https://issues.apache.org/jira/browse/ARTEMIS","contribute":"http://activemq.apache.org/contributing.html"},"gitbook":"3.x.x","description":"ActiveMQ Artemis User Guide and Reference Documentation"},"file":{"path":"large-messages.md","mtime":"2020-04-27T19:30:24.000Z","type":"markdown"},"gitbook":{"version":"3.1.1","time":"2020-04-29T20:47:49.444Z"},"basePath":".","book":{"language":""}}); |
| }); |
| </script> |
| </div> |
| |
| |
| <script src="gitbook/gitbook.js"></script> |
| <script src="gitbook/theme.js"></script> |
| |
| |
| <script src="gitbook/gitbook-plugin-search/search-engine.js"></script> |
| |
| |
| |
| <script src="gitbook/gitbook-plugin-search/search.js"></script> |
| |
| |
| |
| <script src="gitbook/gitbook-plugin-lunr/lunr.min.js"></script> |
| |
| |
| |
| <script src="gitbook/gitbook-plugin-lunr/search-lunr.js"></script> |
| |
| |
| |
| <script src="gitbook/gitbook-plugin-sharing/buttons.js"></script> |
| |
| |
| |
| <script src="gitbook/gitbook-plugin-fontsettings/fontsettings.js"></script> |
| |
| |
| |
| </body> |
| </html> |
| |
