content/references/java-chassis/en_US/transports/http2/index.html

<!DOCTYPE html> <html class="writer-html5" lang="en" > <head> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <link rel="shortcut icon" href="../../img/favicon.ico" /> <title>HTTP2 - ServiceComb Java Chassis Developers Guide</title> <link rel="stylesheet" href="../../css/theme.css" /> <link rel="stylesheet" href="../../css/theme_extra.css" /> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/10.5.0/styles/github.min.css" /> <script> // Current page data var mkdocs_page_name = "HTTP2"; var mkdocs_page_input_path = "transports/http2.md"; var mkdocs_page_url = null; </script> <script src="../../js/jquery-3.6.0.min.js" defer></script>  <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/10.5.0/highlight.min.js"></script> <script>hljs.initHighlightingOnLoad();</script> </head> <body class="wy-body-for-nav" role="document"> <div 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href="../../start/development-environment/">Development environment</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../start/first-sample/">Develop the first microservice</a> </li> </ul> <p class="caption"><span class="caption-text">Development Service Provider</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/definition/service-definition/">Service definition</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/define-contract/">Service contract definition</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/code-first/">Implicit API definition</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/swagger-annotation/">Use Swagger annotations</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/springmvc/">Develop with SpringMVC</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/jaxrs/">Develop with JAX-RS</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/transparent-rpc/">Develop with Transparent RPC</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/interface-constraints/">Interface definition and data type</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/listen-address-and-publish-address/">Service listening address and publishing address</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/thread-pool/">Thread pool</a> </li> <li class="toctree-l1"><a class="reference internal" href="#">Service Configuration</a> <ul> <li class="toctree-l2"><a class="reference internal" href="../../build-provider/configuration/ratelimite-strategy/">Rate Limiting Policy</a> </li> <li class="toctree-l2"><a class="reference internal" href="../../build-provider/configuration/downgrade-strategy/">Fallback Policy</a> </li> <li class="toctree-l2"><a class="reference internal" href="../../build-provider/configuration/parameter-validator/">Parameter Validator</a> </li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/bootup/">Boot-up Process</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-provider/access-log-configuration/">Access Log Configuration</a> </li> </ul> <p class="caption"><span class="caption-text">Writing Service Consumer</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../build-consumer/common-configuration/">Consumer common configuration</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-consumer/using-resttemplate/">Using Rest Template</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-consumer/using-AsyncRestTemplate/">Using AsyncRestTemplate</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-consumer/develop-consumer-using-rpc/">Using with RPC</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-consumer/with-contract/">Contract</a> </li> <li class="toctree-l1"><a class="reference internal" href="#">Invoke control</a> <ul> <li class="toctree-l2"><a class="reference internal" href="../../build-consumer/circuit-breaker/">Circuit Breaker</a> </li> <li class="toctree-l2"><a class="reference internal" href="../../build-consumer/flow-control/">Flow Control</a> </li> <li class="toctree-l2"><a class="reference internal" href="../../build-consumer/fault-injection/">Fault Injection</a> </li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="../../build-consumer/3rd-party-service-invoke/">Invoke 3rd-party REST services</a> </li> </ul> <p class="caption"><span class="caption-text">Transports</span></p> <ul class="current"> <li class="toctree-l1"><a class="reference internal" href="../rest-over-servlet/">REST over Servlet</a> </li> <li class="toctree-l1"><a class="reference internal" href="../rest-over-vertx/">REST over Vertx</a> </li> <li class="toctree-l1"><a class="reference internal" href="../highway-rpc/">Highway</a> </li> <li class="toctree-l1 current"><a class="reference internal current" href="./">HTTP2</a> <ul class="current"> <li class="toctree-l2"><a class="reference internal" href="#scenario">Scenario</a> </li> <li class="toctree-l2"><a class="reference internal" href="#external-service-communication-configuration">External Service Communication Configuration</a> </li> <li class="toctree-l2"><a class="reference internal" href="#http2-server-configuration">http2 server configuration</a> </li> <li class="toctree-l2"><a class="reference internal" href="#http2-client-configuration">http2 client configuration</a> </li> </ul> </li> </ul> <p class="caption"><span class="caption-text">General Development</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../general-development/visit-sc/">Access Service Center</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/metrics/">Metrics</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/microservice-invocation-chain/">Microservice invocation chain</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/customized-tracing/">Customized-Tracing</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/local-develop-test/">Local development and testing</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/http-filter/">Http Filter</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/file-upload/">File Uploading</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/file-download/">File Downloading</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/reactive/">Reactive Programing</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/dnsconfig/">DNS Custom Configuration</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/dai-li-she-zhi/">Proxy Settings</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/report-framework-version/">Report framework version</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/cross-app-invocation/">Cross-application invocation</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/secret-field/">Customized serialization and deserialization</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/context/">Using Context to pass control messages</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/produceprocess/">Return value serialization extension</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/CORS/">CORS mechanism</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/AlarmEvent/">Get fuse and instance isolation alarm event information</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/shutdown/">Shutdown gracefully</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/error-handling/">Handling exceptions</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/multienvironment/">Multi-environment isolation between microservice instances</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../general-development/thread-model/">Thread Model</a> </li> </ul> <p class="caption"><span class="caption-text">Configuration</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../config/general-config/">General config</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../config/inject-config/">Configuration injection</a> </li> </ul> <p class="caption"><span class="caption-text">Service Capability Open</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../edge/open-service/">Intruductions</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../edge/by-servicecomb-sdk/">Using Edge Service</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../edge/nginx/">Using confd and Nginx as edge services</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../edge/zuul/">Use zuul as edge services</a> </li> </ul> <p class="caption"><span class="caption-text">Service Packing and Running</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../packaging/standalone/">Standalone mode</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../packaging/web-container/">WEB container mode</a> </li> </ul> <p class="caption"><span class="caption-text">Micro Service Security</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../security/tls/">Using TLS</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../security/rsa/">Using RSA certification</a> </li> </ul> <p class="caption"><span class="caption-text">Using java chassis in Spring Boot</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../using-java-chassis-in-spring-boot/using-java-chassis-in-spring-boot/">Intruductions</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../using-java-chassis-in-spring-boot/components-for-spring-boot/">spring boot starter for java-chassis</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../using-java-chassis-in-spring-boot/java-application/">JAVA application development</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../using-java-chassis-in-spring-boot/web-application/">Web development method development</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../using-java-chassis-in-spring-boot/diff-between-java-web/">The difference between JAVA application method and Web development method</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../using-java-chassis-in-spring-boot/diff-spring-mvc/">The difference in Spring MVC mode</a> </li> </ul> <p class="caption"><span class="caption-text">Handlers reference</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../references-handlers/intruduction/">Intruductions</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../references-handlers/loadbalance/">Load Balancing</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../references-handlers/publickey/">Public key authentication</a> </li> </ul> <p class="caption"><span class="caption-text">FAQ</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="../../question-and-answer/question_answer/">Q & A</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../question-and-answer/faq/">FAQ</a> </li> <li class="toctree-l1"><a class="reference internal" href="../../question-and-answer/interface-compatibility/">Micro Service Interface Compatibility FAQ</a> </li> </ul> </div> </div> </nav> <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> <nav class="wy-nav-top" role="navigation" aria-label="Mobile navigation menu"> <i data-toggle="wy-nav-top" class="fa fa-bars"></i> <a href="../..">ServiceComb Java Chassis Developers Guide</a> </nav> <div class="wy-nav-content"> <div class="rst-content"><div role="navigation" aria-label="breadcrumbs navigation"> <ul class="wy-breadcrumbs"> <li><a href="../.." class="icon icon-home" alt="Docs"></a> »</li> <li>Transports »</li> <li>HTTP2</li> <li class="wy-breadcrumbs-aside"> </li> </ul> <hr/> </div> <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article"> <div class="section" itemprop="articleBody"> <h1 id="http2">Http2</h1> <h2 id="scenario">Scenario</h2> <p>Users can easily enable Http2 protocol for better performance through configuration.</p> <h2 id="external-service-communication-configuration">External Service Communication Configuration</h2> <p>The configuration for external service communication is in the microservice.yaml file.</p> <ul> <li> <p>Enable h2(Http2 + TLS)</p> <p>Append <code>sslEnabled=true</code> to the listening address to enable TLS communication on server side. For details, see the section <a href="../../security/tls/">Using TLS Communication</a>. Then add <code>protocol=http2</code> to enable h2 communication. Here is the sample configuration:</p> </li> </ul> <p><code>yaml servicecomb: rest: address: 0.0.0.0:8080?sslEnabled=true&protocol=http2</code></p> <ul> <li> <p>Enable h2c(Http2 without TLS)</p> <p>Simply add <code>protocol=http2</code> to enable h2c communication in the server's configuration:</p> </li> </ul> <p><code>yaml servicecomb: rest: address: 0.0.0.0:8080?protocol=http2</code> * The client will read the server's address configuration from service center, then communicate with the server by http2 protocol.</p> <p>Specific examples can refer to <a href="https://github.com/apache/servicecomb-java-chassis/blob/master/integration-tests/it-consumer/src/main/java/org/apache/servicecomb/it/ConsumerMain.java">http2-it-tests</a></p> <h2 id="http2-server-configuration">http2 server configuration</h2> <table> <thead> <tr> <th>configuration</th> <th>default</th> <th>description</th> <th>notice</th> </tr> </thead> <tbody> <tr> <td>servicecomb.rest.server.http2.useAlpnEnabled</td> <td>true</td> <td>Whether to enable ALPN</td> <td></td> </tr> <tr> <td>servicecomb.rest.server.http2.HeaderTableSize</td> <td>4096</td> <td></td> <td></td> </tr> <tr> <td>servicecomb.rest.server.http2.pushEnabled</td> <td>true</td> <td></td> <td></td> </tr> <tr> <td>servicecomb.rest.server.http2.initialWindowSize</td> <td>65535</td> <td></td> <td></td> </tr> <tr> <td>servicecomb.rest.server.http2.maxFrameSize</td> <td>16384</td> <td></td> <td></td> </tr> <tr> <td>servicecomb.rest.server.http2.maxHeaderListSize</td> <td>Integer.MAX_VALUE</td> <td></td> <td></td> </tr> <tr> <td>servicecomb.rest.server.http2.concurrentStreams</td> <td>100</td> <td>The maximum stream concurrency supported in a connection</td> <td>The smaller value of the concurrentStreams on the server side and the multiplexingLimit on the client side</td> </tr> </tbody> </table> <h2 id="http2-client-configuration">http2 client configuration</h2> <table> <thead> <tr> <th>configuration</th> <th>default</th> <th>description</th> <th>notice</th> </tr> </thead> <tbody> <tr> <td>servicecomb.rest.client.http2.useAlpnEnabled</td> <td>true</td> <td>Whether to enable ALPN</td> <td></td> </tr> <tr> <td>servicecomb.rest.client.http2.multiplexingLimit</td> <td>-1</td> <td>The maximum stream concurrency supported in a connection,-1 means no limit</td> <td>The smaller value of the concurrentStreams on the server side and the multiplexingLimit on the client side</td> </tr> <tr> <td>servicecomb.rest.client.http2.maxPoolSize</td> <td>1</td> <td>The maximum number of connections established for each IP:Port in each connection pool</td> <td></td> </tr> <tr> <td>servicecomb.rest.client.http2.idleTimeoutInSeconds</td> <td>0</td> <td>The timeout period of the idle connection, the connection will be closed after the timeout</td> <td></td> </tr> </tbody> </table> </div> </div><footer> <div class="rst-footer-buttons" role="navigation" aria-label="Footer Navigation"> <a href="../highway-rpc/" class="btn btn-neutral float-left" title="Highway"><span class="icon icon-circle-arrow-left"></span> Previous</a> <a href="../../general-development/visit-sc/" class="btn btn-neutral float-right" title="Access Service Center">Next <span class="icon icon-circle-arrow-right"></span></a> </div> <hr/> <div role="contentinfo">  </div> Built with <a href="https://www.mkdocs.org/">MkDocs</a> using a <a href="https://github.com/readthedocs/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. </footer> </div> </div> </section> </div> <div class="rst-versions" role="note" aria-label="Versions"> <span class="rst-current-version" data-toggle="rst-current-version"> <span><a href="../highway-rpc/" style="color: #fcfcfc">« Previous</a></span> <span><a href="../../general-development/visit-sc/" style="color: #fcfcfc">Next »</a></span> </span> </div> <script>var base_url = '../..';</script> <script src="../../js/theme_extra.js" defer></script> <script src="../../js/theme.js" defer></script> <script src="../../search/main.js" defer></script> <script defer> window.onload = function () { SphinxRtdTheme.Navigation.enable(true); }; </script> </body> </html>

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