K8S设置node最大pod数量实现方式
<div id="navCategory"><h5 class="catalogue">目录</h5><ul class="first_class_ul"><li><a href="#_label0">K8S设置node最大pod数量</a></li><ul class="second_class_ul"><li><a href="#_lab2_0_0">1.默认情况下</a></li><li><a href="#_lab2_0_1">2.在node上</a></li><li><a href="#_lab2_0_2">3.修改参数</a></li><li><a href="#_lab2_0_3">4.node端重启kubelet</a></li><li><a href="#_lab2_0_4">5.查看kht125节点上支持的最大pod数量</a></li><li><a href="#_lab2_0_5">6.如果以上方法不生效</a></li><li><a href="#_lab2_0_6">7.去/etc/systemd/system/kubelet.service下</a></li><li><a href="#_lab2_0_7">8.node端重启kubelet</a></li></ul><li><a href="#_label1">总结</a></li><ul class="second_class_ul"></ul></ul></div><p class="maodian"><a name="_label0"></a></p><h2>K8S设置node最大pod数量</h2><p class="maodian"><a name="_lab2_0_0"></a></p><h3>1.默认情况下</h3>
<p>k8s 一个node最多起110个pod</p>
<p class="maodian"><a name="_lab2_0_1"></a></p><h3>2.在node上</h3>
<p>设置打开文件/var/lib/kubelet/config.yaml</p>
<p class="maodian"><a name="_lab2_0_2"></a></p><h3>3.修改参数</h3>
<p>maxPods为指定的值（例子为180）</p>
<p class="maodian"><a name="_lab2_0_3"></a></p><h3>4.node端重启kubelet</h3>
<div class="jb51code"><pre class="brush:bash;">systemctl restart kubelet</pre></div>
<p class="maodian"><a name="_lab2_0_4"></a></p><h3>5.查看kht125节点上支持的最大pod数量</h3>
<div class="jb51code"><pre class="brush:bash;">kubectl describe node kht125 | grep -i "Capacity\|Allocatable" -A 6</pre></div>
<p style="text-align:center"><img alt="" src="https://img.jbzj.com/file_images/article/202512/2025123009313558.png" /></p>
<p class="maodian"><a name="_lab2_0_5"></a></p><h3>6.如果以上方法不生效</h3>
<p>可以先停止kubectl：</p>
<div class="jb51code"><pre class="brush:bash;">systemctl stop kubelet</pre></div>
<p class="maodian"><a name="_lab2_0_6"></a></p><h3>7.去/etc/systemd/system/kubelet.service下</h3>
<p>添加--max-pods=180参数（180是示例数）</p>
<p class="maodian"><a name="_lab2_0_7"></a></p><h3>8.node端重启kubelet</h3>
<div class="jb51code"><pre class="brush:bash;">systemctl daemon-reload
systemctl start kubelet</pre></div>
<p class="maodian"><a name="_label1"></a></p><h2>总结</h2>
<p>以上为个人经验，希望能给大家一个参考，也希望大家多多支持琼殿技术社区。</p>
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