监控常规的任务自然少不了 nginx 和 php-fpm 的监控，最近也是重新开始整理 zabbix，重新学习之，里面的脚本，配置文件以及模板都来源《zabbix 企业级分布式监控系统》一书，根据自身环境适当修改
一、监控 nginx server
1.1 配置 nginx 和 php-fpm
php-fpm 中 [www] 段中配置文件新增
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<span style="height: 20px;" class="line">[www]</span><span style="height: 20px;" class="line">pm<span class="class">.status_path</span> = /fpm_status.php</span> 로그인 후 복사 |
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nginx 配置新增 server 段
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<span style="height: 20px;" class="line"><span style="color: #3e999f;" class="title">server</span> {</span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">listen</span> <span style="color: #f5871f;" class="number">127.0.0.1:80</span>;</span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">allow</span> <span style="color: #f5871f;" class="number">127.0.0.1</span>;</span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">deny</span> all; <span style="color: #8e908c;" class="comment"># 这里两行控制权限</span></span><span style="height: 20px;" class="line"> <span style="color: #8e908c;" class="comment"># 开启 nginx 状态页</span></span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">location</span> /nginxstatus {</span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">stub_status</span> <span style="color: #f5871f;" class="built_in">on</span>;</span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">access_log</span> <span style="color: #f5871f;" class="built_in">off</span>;</span><span style="height: 20px;" class="line"> }</span><span style="height: 20px;" class="line"> <span style="color: #8e908c;" class="comment"># 开启 php-fpm 状态页</span></span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">location</span> <span style="color: #c82829;" class="regexp">~ ^/(fpm_status)</span> {</span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">fastcgi_pass</span> <span style="color: #f5871f;" class="number">127.0.0.1:9000</span>;</span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">fastcgi_index</span> index.php;</span><span style="height: 20px;" class="line"> <span style="color: #3e999f;" class="title">include</span> fastcgi.conf;</span><span style="height: 20px;" class="line"> }</span><span style="height: 20px;" class="line">}</span>로그인 후 복사 |
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访问测试，确保可以查看状态信息
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<span style="height: 20px;" class="line">curl <span style="color: #718c00;" class="string">http:</span><span style="color: #8e908c;" class="comment">//127.0.0.1/nginxstatus</span></span><span style="height: 20px;" class="line">curl <span style="color: #718c00;" class="string">http:</span><span style="color: #8e908c;" class="comment">//127.0.0.1/fpm_status.php</span></span> 로그인 후 복사 |
1.2 配置检测脚本和 userparameter
我配置了 agent 主动发送数据到 server 的 active 模式
首先看目录结构
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<span style="height: 20px;" class="line"># tree /etc/zabbix/</span><span style="height: 20px;" class="line">/etc/zabbix/</span><span style="height: 20px;" class="line">├── scripts</span><span style="height: 20px;" class="line">│?? ├── check_nginx_status.<span style="color: #8959a8;" class="keyword">sh</span></span><span style="height: 20px;" class="line">│?? └── check_phpfpm.<span style="color: #8959a8;" class="keyword">sh</span></span><span style="height: 20px;" class="line">├── zabbix_agentd.<span style="color: #8959a8;" class="keyword">conf</span></span><span style="height: 20px;" class="line">└── zabbix_agentd.<span style="color: #f5871f;" class="literal">d</span></span><span style="height: 20px;" class="line"> ├── userparameter_nginx.<span style="color: #8959a8;" class="keyword">conf</span></span><span style="height: 20px;" class="line"> └── userparameter_phpfpm.<span style="color: #8959a8;" class="keyword">conf</span></span> 로그인 후 복사 |
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下面分别对应每个文件
- userparameter_nginx.conf
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<span style="height: 20px;" class="line">UserParameter=nginx<span class="class">.accepts</span>,/etc/zabbix/scripts/check_nginx_status<span class="class">.sh</span> accepts</span><span style="height: 20px;" class="line">UserParameter=nginx<span class="class">.handled</span>,/etc/zabbix/scripts/check_nginx_status<span class="class">.sh</span> handled</span><span style="height: 20px;" class="line">UserParameter=nginx<span class="class">.requests</span>,/etc/zabbix/scripts/check_nginx_status<span class="class">.sh</span> requests</span><span style="height: 20px;" class="line">UserParameter=nginx<span class="class">.connections</span><span class="class">.active</span>,/etc/zabbix/scripts/check_nginx_status<span class="class">.sh</span> active</span><span style="height: 20px;" class="line">UserParameter=nginx<span class="class">.connections</span><span class="class">.reading</span>,/etc/zabbix/scripts/check_nginx_status<span class="class">.sh</span> reading</span><span style="height: 20px;" class="line">UserParameter=nginx<span class="class">.connections</span><span class="class">.writing</span>,/etc/zabbix/scripts/check_nginx_status<span class="class">.sh</span> writing</span><span style="height: 20px;" class="line">UserParameter=nginx<span class="class">.connections</span><span class="class">.waiting</span>,/etc/zabbix/scripts/check_nginx_status<span class="class">.sh</span> waiting</span> 로그인 후 복사 |
- userparameter_phpfpm.conf
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<span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.pool</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> pool</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.process</span><span class="class">.manager</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> process_manager</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.start</span><span class="class">.since</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> start_since</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.accepted</span><span class="class">.conn</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> accepted_conn</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.listen</span><span class="class">.queue</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> listen_queue</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.max</span><span class="class">.listen</span><span class="class">.queue</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> max_listen_queue</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.listen</span><span class="class">.queue</span><span class="class">.len</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> listen_queue_len</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.idle</span><span class="class">.processes</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> idle_processes</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.active</span><span class="class">.processes</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> active_processes</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.total</span><span class="class">.processes</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> total_processes</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.max</span><span class="class">.active</span><span class="class">.processes</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> max_active_processes</span><span style="height: 20px;" class="line">UserParameter=phpfpm<span class="class">.status</span><span class="class">.max</span><span class="class">.children</span><span class="class">.reached</span>,/etc/zabbix/scripts/check_phpfpm<span class="class">.sh</span> max_children_reached</span> 로그인 후 복사 |
- check_nginx_status.sh
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<span style="height: 20px;" class="line"><span class="shebang">#!/bin/bash</span></span><span style="height: 20px;" class="line"><span style="color: #f5871f;" class="built_in">source</span> /etc/bashrc >/dev/null <span style="color: #f5871f;" class="number">2</span>>&<span style="color: #f5871f;" class="number">1</span></span><span style="height: 20px;" class="line"><span style="color: #f5871f;" class="built_in">source</span> /etc/profile >/dev/null <span style="color: #f5871f;" class="number">2</span>>&<span style="color: #f5871f;" class="number">1</span></span><span style="height: 20px;" class="line">nginxstatus=http://<span style="color: #f5871f;" class="number">127.0</span>.<span style="color: #f5871f;" class="number">0.1</span>/nginxstatus</span><span style="height: 20px;" class="line"><span style="color: #8e908c;" class="comment"># Functions to return nginx stats</span></span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">function</span> checkavailable {</span><span style="height: 20px;" class="line"> code=$(curl -o /dev/null <span class="operator">-s</span> -w %{http_code} <span style="color: #c82829;" class="variable">${nginxstatus}</span>)</span><span style="height: 20px;" class="line"> <span style="color: #8959a8;" class="keyword">if</span> [ <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">${code}</span>"</span> == <span style="color: #718c00;" class="string">"200"</span> ]</span><span style="height: 20px;" class="line"> <span style="color: #8959a8;" class="keyword">then</span></span><span style="height: 20px;" class="line"> <span style="color: #f5871f;" class="built_in">return</span> <span style="color: #f5871f;" class="number">1</span></span><span style="height: 20px;" class="line"> <span style="color: #8959a8;" class="keyword">else</span></span><span style="height: 20px;" class="line"> <span style="color: #f5871f;" class="built_in">echo</span> <span style="color: #f5871f;" class="number">0</span></span><span style="height: 20px;" class="line"> <span style="color: #8959a8;" class="keyword">fi</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">function</span> active {</span><span style="height: 20px;" class="line"> checkavailable|| curl <span class="operator">-s</span> <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">${nginxstatus}</span>"</span> | grep <span style="color: #718c00;" class="string">'Active'</span> | awk <span style="color: #718c00;" class="string">'{print $3}'</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">function</span> reading {</span><span style="height: 20px;" class="line"> checkavailable|| curl <span class="operator">-s</span> <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">${nginxstatus}</span>"</span> | grep <span style="color: #718c00;" class="string">'Reading'</span> | awk <span style="color: #718c00;" class="string">'{print $2}'</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">function</span> writing {</span><span style="height: 20px;" class="line"> checkavailable|| curl <span class="operator">-s</span> <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">${nginxstatus}</span>"</span> | grep <span style="color: #718c00;" class="string">'Writing'</span> | awk <span style="color: #718c00;" class="string">'{print $4}'</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">function</span> waiting {</span><span style="height: 20px;" class="line"> checkavailable|| curl <span class="operator">-s</span> <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">${nginxstatus}</span>"</span> | grep <span style="color: #718c00;" class="string">'Waiting'</span> | awk <span style="color: #718c00;" class="string">'{print $6}'</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">function</span> accepts {</span><span style="height: 20px;" class="line"> checkavailable|| curl <span class="operator">-s</span> <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">${nginxstatus}</span>"</span> | awk NR==<span style="color: #f5871f;" class="number">3</span> | awk <span style="color: #718c00;" class="string">'{print $1}'</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">function</span> handled {</span><span style="height: 20px;" class="line"> checkavailable|| curl <span class="operator">-s</span> <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">${nginxstatus}</span>"</span> | awk NR==<span style="color: #f5871f;" class="number">3</span> | awk <span style="color: #718c00;" class="string">'{print $2}'</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">function</span> requests {</span><span style="height: 20px;" class="line"> checkavailable|| curl <span class="operator">-s</span> <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">${nginxstatus}</span>"</span> | awk NR==<span style="color: #f5871f;" class="number">3</span> | awk <span style="color: #718c00;" class="string">'{print $3}'</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">case</span> <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">$1</span>"</span> <span style="color: #8959a8;" class="keyword">in</span></span><span style="height: 20px;" class="line"> active)</span><span style="height: 20px;" class="line"> active</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line"> reading)</span><span style="height: 20px;" class="line"> reading</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line"> writing)</span><span style="height: 20px;" class="line"> writing</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line"> waiting)</span><span style="height: 20px;" class="line"> waiting</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line"> accepts)</span><span style="height: 20px;" class="line"> accepts</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line"> handled)</span><span style="height: 20px;" class="line"> handled</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line"> requests)</span><span style="height: 20px;" class="line"> requests</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line"> *)</span><span style="height: 20px;" class="line"> <span style="color: #f5871f;" class="built_in">echo</span> <span style="color: #718c00;" class="string">"Usage: <span style="color: #c82829;" class="variable">$0</span> {active |reading |writing |waiting |accepts |handled |requests }"</span></span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">esac</span></span>로그인 후 복사 |
- check_phpfpm.sh
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<span style="height: 20px;" class="line"><span class="shebang">#!/bin/bash</span></span><span style="height: 20px;" class="line"><span style="color: #f5871f;" class="built_in">source</span> /etc/bashrc >/dev/null <span style="color: #f5871f;" class="number">2</span>>&<span style="color: #f5871f;" class="number">1</span></span><span style="height: 20px;" class="line"><span style="color: #f5871f;" class="built_in">source</span> /etc/profile >/dev/null <span style="color: #f5871f;" class="number">2</span>>&<span style="color: #f5871f;" class="number">1</span></span><span style="height: 20px;" class="line">LOG_FILE=/var/<span style="color: #f5871f;" class="built_in">log</span>/zabbix/phpfpmstatus.log</span><span style="height: 20px;" class="line">curl http://<span style="color: #f5871f;" class="number">127.0</span>.<span style="color: #f5871f;" class="number">0.1</span>/fpm_status.php ><span style="color: #c82829;" class="variable">${LOG_FILE}</span> <span style="color: #f5871f;" class="number">2</span>>&<span style="color: #f5871f;" class="number">1</span></span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">pool</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/pool/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">process_manager</span></span>() {</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/process manager/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">start_since</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^start since:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">accepted_conn</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^accepted conn:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">listen_queue</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^listen queue:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">max_listen_queue</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^max listen queue:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">listen_queue_len</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^listen queue len:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">idle_processes</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^idle processes:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">active_processes</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^active processes:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">total_processes</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^total processes:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">max_active_processes</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^max active processes:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #4271ae;" class="function"><span style="color: #3e999f;" class="title">max_children_reached</span></span>(){</span><span style="height: 20px;" class="line"> awk <span style="color: #718c00;" class="string">'/^max children reached:/ {print $NF}'</span> <span style="color: #c82829;" class="variable">${LOG_FILE}</span></span><span style="height: 20px;" class="line">}</span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">case</span> <span style="color: #718c00;" class="string">"<span style="color: #c82829;" class="variable">$1</span>"</span> <span style="color: #8959a8;" class="keyword">in</span></span><span style="height: 20px;" class="line">pool)</span><span style="height: 20px;" class="line"> pool</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">process_manager)</span><span style="height: 20px;" class="line"> process_manager</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">start_since)</span><span style="height: 20px;" class="line"> start_since</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">accepted_conn)</span><span style="height: 20px;" class="line"> accepted_conn</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">listen_queue)</span><span style="height: 20px;" class="line"> listen_queue</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">max_listen_queue)</span><span style="height: 20px;" class="line"> max_listen_queue</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">listen_queue_len)</span><span style="height: 20px;" class="line"> listen_queue_len</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">idle_processes)</span><span style="height: 20px;" class="line"> idle_processes</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">active_processes)</span><span style="height: 20px;" class="line"> active_processes</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">total_processes)</span><span style="height: 20px;" class="line"> total_processes</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">max_active_processes)</span><span style="height: 20px;" class="line"> max_active_processes</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">max_children_reached)</span><span style="height: 20px;" class="line"> max_children_reached</span><span style="height: 20px;" class="line"> ;;</span><span style="height: 20px;" class="line">*)</span><span style="height: 20px;" class="line"> <span style="color: #f5871f;" class="built_in">echo</span> <span style="color: #718c00;" class="string">"Usage: <span style="color: #c82829;" class="variable">$0</span> {pool|process_manager|start_since|accepted_conn|listen_queue|max_listen_queue|listen_queue_len|idle_processes|active_processes|total_processes|max_active_processes|max_children_reached}"</span></span><span style="height: 20px;" class="line"><span style="color: #8959a8;" class="keyword">esac</span></span>로그인 후 복사 |
以上全部配置完成之后重启 agent 即可
1.3 添加模板，调用
松爷的书里提供了大量的模板，如果不想自己重写生成模板，直接拿着这个模板进行根据自身的环境修改即可
- nginx 的模板
- php-fpm 的模板
最后呈现出来的效果如下图(zatree中)
