<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> I have searched the <a href="https://github.com/apache/incubator-dubbo/issues">issues</a> of this repository and believe that this is not a duplicate.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> I have checked the <a href="https://github.com/apache/incubator-dubbo/blob/master/FAQ.md">FAQ</a> of this repository and believe that this is not a duplicate.</li>
</ul>
<h3 dir="auto">Environment</h3>
<ul dir="auto">
<li>Dubbo version: 2.7.2</li>
<li>Operating System version: mac</li>
<li>Java version: 1.8</li>
</ul>
<h3 dir="auto">Steps to reproduce this issue</h3>
<ol dir="auto">
<li>xxx</li>
<li>xxx</li>
<li>xxx</li>
</ol>
<p dir="auto">Pls. provide [GitHub address] to reproduce this issue.</p>
<h3 dir="auto">Expected Result</h3>
<p dir="auto">What do you expected from the above steps？</p>
<h3 dir="auto">Actual Result</h3>
<p dir="auto">What actually happens?</p>
<p dir="auto">If there is an exception, please attach the exception trace:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="Just put your stack trace here!"><pre class="notranslate"><code class="notranslate">Just put your stack trace here!
</code></pre></div>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> I have searched the <a href="https://github.com/apache/dubbo/issues">issues</a> of this repository and believe that this is not a duplicate.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> I have checked the <a href="https://github.com/apache/dubbo/blob/master/FAQ.md">FAQ</a> of this repository and believe that this is not a duplicate.</li>
</ul>
<h3 dir="auto">Environment</h3>
<ul dir="auto">
<li>Dubbo version: 2.7.8</li>
<li>Operating System version: macos</li>
<li>Java version: 1.8</li>
</ul>
<h3 dir="auto">Steps to reproduce this issue</h3>
<ol dir="auto">
<li>use the "dubbo-samples-zookeeper" project</li>
<li>add "dubbo.properties" in the spring directory<br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/11936135/97993800-82ab0e80-1e1f-11eb-81cf-5e5bf609fbfe.png"><img src="https://user-images.githubusercontent.com/11936135/97993800-82ab0e80-1e1f-11eb-81cf-5e5bf609fbfe.png" alt="image" style="max-width: 100%;"></a></li>
<li>add dubbo.service.shutdown.wait in the dubbo.properties<br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/11936135/97993831-8f2f6700-1e1f-11eb-96ed-b3e34fdae938.png"><img src="https://user-images.githubusercontent.com/11936135/97993831-8f2f6700-1e1f-11eb-96ed-b3e34fdae938.png" alt="image" style="max-width: 100%;"></a><br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/11936135/97993872-9ce4ec80-1e1f-11eb-8d43-1d741a100253.png"><img src="https://user-images.githubusercontent.com/11936135/97993872-9ce4ec80-1e1f-11eb-8d43-1d741a100253.png" alt="image" style="max-width: 100%;"></a><br>
4、kill -15 the project's process<br>
5、the log print "Waiting 10000ms for registry to notify all consumers before unexport"。<br>
always use the default value</li>
</ol>