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<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Apache Dubbo – Reference Manual</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/</link><description>Recent content in Reference Manual on Apache Dubbo</description><generator>Hugo -- gohugo.io</generator><language>en</language><atom:link href="https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/index.xml" rel="self" type="application/rss+xml"/><item><title>Docs3-V2: Configuration Manual</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/config/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/config/</guid><description/></item><item><title>Docs3-V2: QOS Operation Manual</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/qos/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/qos/</guid><description/></item><item><title>Docs3-V2: RPC protocol</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/protocol/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/protocol/</guid><description/></item><item><title>Docs3-V2: Registration Center Description</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/registry/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/registry/</guid><description/></item><item><title>Docs3-V2: Metadata Center</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/metadata-center/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/metadata-center/</guid><description/></item><item><title>Docs3-V2: Configuration Center</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/config-center/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/config-center/</guid><description>
&lt;p>The configuration center (config-center) can undertake two types of responsibilities in Dubbo:&lt;/p>
&lt;ol>
&lt;li>[Externalized configuration](../config/principle/#33-externalized configuration): Centralized storage of startup configuration (simply understood as externalized storage of dubbo.properties).&lt;/li>
&lt;li>Storage of traffic governance rules&lt;/li>
&lt;/ol>
&lt;p>Please refer to the specific extension implementation to learn how to enable the configuration center.&lt;/p>
&lt;p>It is worth noting that the Dubbo dynamic configuration center defines two different levels of isolation options, namely namespce and group.&lt;/p>
&lt;ul>
&lt;li>namespace - configuration namespace, the default value is &lt;code>dubbo&lt;/code>. Namespaces are usually used for multi-tenant isolation, that is, to logically isolate different users, different environments, or a series of configurations that are completely unrelated. The point of difference from physical isolation is whether different namespaces are used or the same physical cluster.&lt;/li>
&lt;li>group - configuration grouping, default value &lt;code>dubbo&lt;/code>. &lt;code>group&lt;/code> is usually used to classify a group of configuration items of the same type/purpose, which is a further isolation of configuration items under &lt;code>namespace&lt;/code>.&lt;/li>
&lt;/ul>
&lt;p>Refer to &lt;a href="../config/properties/#config-center">Configuration Instructions - Configuration Item Manual&lt;/a> for more configuration items opened by config-center other than namespce and group.&lt;/p>
&lt;blockquote>
&lt;p>In order to be compatible with the 2.6.x version configuration, when Zookeeper is used as the registration center and the configuration center is not displayed, the Dubbo framework will use this Zookeeper as the configuration center by default, but it will only be used for service governance.&lt;/p>
&lt;/blockquote></description></item><item><title>Docs3-V2: Mesh Manual</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/mesh/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/mesh/</guid><description>
&lt;p>An overview of Dubbo mesh usage and debugging methods.&lt;/p></description></item><item><title>Docs3-V2: Performance Reference Manual</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/performance/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/performance/</guid><description/></item><item><title>Docs3-V2: Dubbo Integration Graalvm Reference Manual</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/graalvm/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/graalvm/</guid><description>
&lt;p>dubbo3.0 supports native-image document&lt;/p>
&lt;h2 id="overview">Overview&lt;/h2>
&lt;p>This document will introduce the process of connecting dubbo3.0 project to GraalVM and compiling native-image into binary.&lt;/p>
&lt;p>More information about GraalVm can be read &lt;a href="https://www.graalvm.org/docs/getting-started/container-images/">https://www.graalvm.org/docs/getting-started/container-images/&lt;/a> this document.&lt;/p>
&lt;h2 id="use-the-example">Use the example&lt;/h2>
&lt;p>Before compiling our dubbo project, we need to make sure that we are based on the graalVm environment.&lt;/p>
&lt;ol>
&lt;li>Install GraalVM&lt;/li>
&lt;/ol>
&lt;p>Go to &lt;a href="https://www.graalvm.org/">https://www.graalvm.org/&lt;/a> official website and select the latest version to install according to your own system:&lt;/p>
&lt;p>&lt;img src="https://dubbo.apache.org/imgs/blog/dubbo3.0-graalvm-support/graalvmgw.jpg" alt="img">&lt;/p>
&lt;p>After the installation is complete, modify the path to configure JAVA_HOME, and check the local jdk after it takes effect, you can see the following:&lt;/p>
&lt;p>&lt;img src="https://dubbo.apache.org/imgs/blog/dubbo3.0-graalvm-support/graalvm_env.jpg" alt="img">
Here we use GraalVM based on jdk1.8 version.&lt;/p>
&lt;ul>
&lt;li>To install native-image, just execute gu install native-image.&lt;/li>
&lt;/ul>
&lt;ol>
&lt;li>Pull the dubbo code and switch to the &lt;a href="https://github.com/apache/dubbo">apache:3.0&lt;/a> branch.&lt;/li>
&lt;li>Manually execute the generated SPI code.&lt;/li>
&lt;/ol>
&lt;p>Since the current compilation of native-image does not support code dynamic generation and compilation, the part related to code dynamic generation needs to be generated manually. Here is a tool function:&lt;/p>
&lt;p>&lt;img src="https://dubbo.apache.org/imgs/blog/dubbo3.0-graalvm-support/code_generator.jpg" alt="img">
Execute CodeGenerator to generate SPI code under the dubbo-native module.&lt;/p>
&lt;ol>
&lt;li>Execute install in the root directory&lt;/li>
&lt;/ol>
&lt;div class="highlight">&lt;pre tabindex="0" style="color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-go" data-lang="go">&lt;span style="display:flex;">&lt;span>MacdeMacBook&lt;span style="color:#719e07">-&lt;/span>pro&lt;span style="color:#719e07">-&lt;/span>&lt;span style="color:#2aa198">3&lt;/span>:incubator&lt;span style="color:#719e07">-&lt;/span>dubbo mac$ pwd
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&lt;span style="color:#719e07">/&lt;/span>Users&lt;span style="color:#719e07">/&lt;/span>mac&lt;span style="color:#719e07">/&lt;/span>Documents&lt;span style="color:#719e07">/&lt;/span>Mi&lt;span style="color:#719e07">/&lt;/span>project&lt;span style="color:#719e07">/&lt;/span>incubator&lt;span style="color:#719e07">-&lt;/span>dubbo
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>MacdeMacBook&lt;span style="color:#719e07">-&lt;/span>pro&lt;span style="color:#719e07">-&lt;/span>&lt;span style="color:#2aa198">3&lt;/span>:incubator&lt;span style="color:#719e07">-&lt;/span>dubbo mac$ mvn clean &lt;span style="color:#719e07">package&lt;/span> install &lt;span style="color:#719e07">-&lt;/span>Dmaven.test.skip=&lt;span style="color:#cb4b16">true&lt;/span>
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/div>&lt;ol>
&lt;li>Compile the demo project&lt;/li>
&lt;/ol>
&lt;p>Here we provide a sample project that can be directly compiled, dubbo-demo/dubbo-demo-native. After the above steps are installed, first go to the provider of dubbo-demo-native and execute native-image compilation:&lt;/p>
&lt;div class="highlight">&lt;pre tabindex="0" style="color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-go" data-lang="go">&lt;span style="display:flex;">&lt;span> mvn clean &lt;span style="color:#719e07">package&lt;/span> &lt;span style="color:#719e07">-&lt;/span>P native &lt;span style="color:#719e07">-&lt;/span>Dmaven.test.skip=&lt;span style="color:#cb4b16">true&lt;/span>
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/div>&lt;p>Here, since we have introduced the native-image plug-in in maven, the plug-in can be executed directly -P native.&lt;/p>
&lt;p>&lt;img src="https://dubbo.apache.org/imgs/blog/dubbo3.0-graalvm-support/native_image_build.jpg" alt="img">
After the compilation is successful, you can see the generated binary file under the target, start a zookeeper locally, and execute the binary directly. It can be seen that the startup is successful as follows:&lt;/p>
&lt;p>&lt;img src="https://dubbo.apache.org/imgs/blog/dubbo3.0-graalvm-support/run_provider.jpg" alt="img">
The consumer side also executes compilation, and a binary file is also generated under the consumer target: demo-native-consumer. Execute this binary and you can see the result of the call as follows:&lt;/p>
&lt;p>&lt;img src="https://dubbo.apache.org/imgs/blog/dubbo3.0-graalvm-support/run_consumer.jpg" alt="img">&lt;/p>
&lt;h3 id="specific-steps">Specific steps&lt;/h3>
&lt;p>In fact, we have done some work under this demo to ensure that the project can be compiled and executed. There are mainly the following steps&lt;/p>
&lt;ul>
&lt;li>Introduce dubbo-native dependency&lt;/li>
&lt;/ul>
&lt;div class="highlight">&lt;pre tabindex="0" style="color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-fallback" data-lang="fallback">&lt;span style="display:flex;">&lt;span>&amp;lt;dependency&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;groupId&amp;gt;org.apache.dubbo&amp;lt;/groupId&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;artifactId&amp;gt;dubbo-native&amp;lt;/artifactId&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;version&amp;gt;${project.version}&amp;lt;/version&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&amp;lt;/dependency&amp;gt;
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/div>&lt;p>Under this module is the SPI code we generated.&lt;/p>
&lt;ul>
&lt;li>Introduce native-image plugin&lt;/li>
&lt;/ul>
&lt;div class="highlight">&lt;pre tabindex="0" style="color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-fallback" data-lang="fallback">&lt;span style="display:flex;">&lt;span>&amp;lt;plugin&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;groupId&amp;gt;org.graalvm.nativeimage&amp;lt;/groupId&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;artifactId&amp;gt;native-image-maven-plugin&amp;lt;/artifactId&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;version&amp;gt;21.0.0.2&amp;lt;/version&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;executions&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;execution&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;goals&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;goal&amp;gt;native-image&amp;lt;/goal&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;/goals&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;phase&amp;gt;package&amp;lt;/phase&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;/execution&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;/executions&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;configuration&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;skip&amp;gt;false&amp;lt;/skip&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;imageName&amp;gt;demo-native-provider&amp;lt;/imageName&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;mainClass&amp;gt;org.apache.dubbo.demo.graalvm.provider.Application&amp;lt;/mainClass&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;buildArgs&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --no-fallback
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.slf4j.MDC
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.slf4j.LoggerFactory
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.slf4j.impl.StaticLoggerBinder
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.apache.log4j.helpers.Loader
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.apache.log4j.Logger
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.apache.log4j.helpers.LogLog
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.apache.log4j.LogManager
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.apache.log4j.spi.LoggingEvent
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.slf4j.impl.Log4jLoggerFactory
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.slf4j.impl.Log4jLoggerAdapter
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-build-time=org.eclipse.collections.api.factory.Sets
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.epoll.Epoll
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.epoll.Native
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.epoll.EpollEventLoop
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.epoll.EpollEventArray
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.DefaultFileRegion
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.kqueue.KQueueEventArray
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.kqueue.KQueueEventLoop
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.kqueue.Native
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.unix.Errors
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.unix.IovArray
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.unix.Limits
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.util.internal.logging.Log4JLogger
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.unix.Socket
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --initialize-at-run-time=io.netty.channel.ChannelHandlerMask
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --report-unsupported-elements-at-runtime
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --allow-incomplete-classpath
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> --enable-url-protocols=http
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> -H:+ReportExceptionStackTraces
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;/buildArgs&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> &amp;lt;/configuration&amp;gt;
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span>&amp;lt;/plugin&amp;gt;
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/div>&lt;p>It defines the name of the generated image and some parameters for building the image.&lt;/p>
&lt;ul>
&lt;li>mount native-image-agent&lt;/li>
&lt;/ul>
&lt;p>Since we need to specify some reflection, JNI and other classes first, we need to use the agent to run it in a normal way to generate information in the form of json for these classes.&lt;/p>
&lt;p>In the startup parameters add:&lt;/p>
&lt;div class="highlight">&lt;pre tabindex="0" style="color:#93a1a1;background-color:#002b36;-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-fallback" data-lang="fallback">&lt;span style="display:flex;">&lt;span>-agentlib:native-image-agent=config-output-dir=/tmp/config/,config-write-period-secs=300,config-write-initial-delay-secs=5
&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/div>&lt;p>Start in the normal way, create a folder META-INF.native-image under the resources of the project, and paste the files generated in the local directory:&lt;/p>
&lt;p>&lt;img src="https://dubbo.apache.org/imgs/blog/dubbo3.0-graalvm-support/resources.jpg" alt="img">
(There may be missing class information that is not generated, which needs to be added manually according to the error message when compiling or running.)&lt;/p>
&lt;p>** After completing the above steps, the project can be compiled. **&lt;/p></description></item><item><title>Docs3-V2: SPI Extension Manual</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/spi/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/spi/</guid><description/></item></channel></rss>