| <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Apache Dubbo – 7 - QoS</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/</link><description>Recent content in 7 - QoS on Apache Dubbo</description><generator>Hugo -- gohugo.io</generator><language>en</language><atom:link href="https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/index.xml" rel="self" type="application/rss+xml"/><item><title>Docs3-V2: 7-1 - QOS OFF</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/1/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/1/</guid><description> |
| <h2 id="possible-reason">Possible Reason</h2> |
| <p>QOS is off</p> |
| <h2 id="troubleshooting-and-resolution-steps">Troubleshooting and resolution steps</h2> |
| <p>Please refer to <a href="https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/qos/">QOS Operation Manual</a>.</p> |
| <p style="margin-top: 3rem;"> </p></description></item><item><title>Docs3-V2: 7-2 - QOS is on</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/2/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/2/</guid><description> |
| <h2 id="possible-reason">Possible Reason</h2> |
| <p>QOS is enabled, and it is enabled by default.</p> |
| <h2 id="troubleshooting-and-resolution-steps">Troubleshooting and resolution steps</h2> |
| <p>Please refer to <a href="https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/qos/">QOS Operation Manual</a>.</p> |
| <p style="margin-top: 3rem;"> </p></description></item><item><title>Docs3-V2: 7-3 - Set warning percentage value for timeout</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/3/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/3/</guid><description> |
| <h2 id="possible-reason">Possible Reason</h2> |
| <p>The warning percentage value of QOS setting timeout time, the default is 0.75. After modification, the console prints this message.</p> |
| <h2 id="troubleshooting-and-resolution-steps">Troubleshooting and resolution steps</h2> |
| <p>Please refer to QOS Operation Manual <a href="https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/qos/profiler/">Performance Sampling Command</a>.</p> |
| <p style="margin-top: 3rem;"> </p></description></item><item><title>Docs3-V2: 7-4 - QOS service failed to start</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/4/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/4/</guid><description> |
| <h2 id="possible-reason">Possible Reason</h2> |
| <p>The QOS parameter value is not set correctly. The main parameters are <code>qos.host</code> and <code>qos.port</code></p> |
| <h2 id="troubleshooting-and-resolution-steps">Troubleshooting and resolution steps</h2> |
| <p>Please refer to the QOS Operation Manual <a href="https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/qos/overview/">QOS Overview</a>.</p> |
| <p style="margin-top: 3rem;"> </p></description></item><item><title>Docs3-V2: 7-5 - QOS command not found</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/5/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/5/</guid><description> |
| <h2 id="possible-reason">Possible Reason</h2> |
| <ol> |
| <li>The QOS command is misspelled.</li> |
| </ol> |
| <h2 id="troubleshooting-and-resolution-steps">Troubleshooting and resolution steps</h2> |
| <ol> |
| <li>QOS command does not exist.</li> |
| </ol> |
| <p>Please refer to QOS Operation Manual <a href="https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/qos/command/">Basic Command Manual</a>.</p> |
| <p style="margin-top: 3rem;"> </p></description></item><item><title>Docs3-V2: 7-6 - Unknown exception occurred in QOS</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/6/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/6/</guid><description> |
| <h2 id="possible-reason">Possible Reason</h2> |
| <ol> |
| <li>An unknown exception occurred in QOS</li> |
| </ol> |
| <h2 id="troubleshooting-and-resolution-steps">Troubleshooting and resolution steps</h2> |
| <ol> |
| <li>Check whether the currently requested service can be accessed normally.</li> |
| <li>Perhaps for some reason, the <code>CommandContext</code> instance was not properly loaded or returned. You can troubleshoot and locate according to the error reminder information on the console.</li> |
| </ol> |
| <p style="margin-top: 3rem;"> </p></description></item><item><title>Docs3-V2: 7-7 - QOS Unprivileged Access</title><link>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/7/</link><pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate><guid>https://dubbo.apache.org/en/docs3-v2/java-sdk/faq/7/7/</guid><description> |
| <h2 id="possible-reason">Possible Reason</h2> |
| <p>This QoS request does not have permission to access the corresponding resources, which usually occurs in a malicious attack scenario</p> |
| <h2 id="troubleshooting-and-resolution-steps">Troubleshooting and resolution steps</h2> |
| <p>Check whether the request is expected, if not, please check whether there is a malicious attack source, |
| If it is expected, please refer to <a href="https://dubbo.apache.org/en/docs3-v2/java-sdk/reference-manual/qos/overview/#safety">QoS Security</a> to configure the corresponding permission information .</p> |
| <p style="margin-top: 3rem;"> </p></description></item></channel></rss> |
