<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> 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" checked=""> 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: 2.6.x</li>
<li>Operating System version: all</li>
<li>Java version: 1.6+</li>
</ul>
<h3 dir="auto">Step to reproduce this issue</h3>
<p dir="auto"><code class="notranslate">mvn clean package</code></p>
<h3 dir="auto">Expected Result</h3>
<p dir="auto">BUILD SUCCESS</p>
<h3 dir="auto">Actual Result</h3>
<p dir="auto">BUILD FAILED</p>
<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: 2.6.x</li>
<li>Operating System version: centos</li>
<li>Java version: 1.8</li>
</ul>
<p dir="auto">原因：<br>
1.数据包大小不确定<br>
2.经常出现网络耗时比较长的原因</p>
<p dir="auto">如何 监控dubbo的传输数据包的大小，有那个地方能看到吗</p>