trace client_id id: Cannot trace at a log level (debug) lower than the primary log level

男娘i 2023-02-14 10:48 131阅读 0赞

## EMQX trace 指定客户端日志报错 ##

**背景：**  
用命令 emqx\_ctl 跟踪指定客户端的日志  
看下emqx\_ctl 说明

./emqx_ctl
     --------------------------------------------------------------------------------
    trace list                                      # List all traces started
    trace start client <ClientId> <File> [<Level>]  # Traces for a client
    trace stop  client <ClientId>                   # Stop tracing for a client
    trace start topic  <Topic>    <File> [<Level>]  # Traces for a topic
    trace stop  topic  <Topic>                      # Stop tracing for a topic
    --------------------------------------------------------------------------------

![在这里插入图片描述][20200523153210647.png_pic_center]  
执行命令  
./bin/emqx\_ctl trace start client id log/id.log  
报错

> trace client\_id \*\*: "Cannot  
> trace at a log level (debug) lower than the primary log level

**原因**：  
trace 的日志级别超过默认最大级别

**解决**：  
设置默认日志级别(根据需要提高到debug)  
1、打开 emqx/etc/emqx.conf  
2、找到 log.level，改成 debug  
![在这里插入图片描述][20200602164445962.png]  
3、重启(注意：直接 restart 不生效)

./bin/emqx stop
    ./bin/emqx start

4、重新trace 就可以成功了  
![在这里插入图片描述][20200602164909661.png]  
结果文件在 emqx/log 里面

emqx使用文档  
https://docs.emqx.io/docs/broker/v3/cn/config.html

[20200523153210647.png_pic_center]: https://img-blog.csdnimg.cn/20200523153210647.png#pic_center
[20200602164445962.png]: https://img-blog.csdnimg.cn/20200602164445962.png
[20200602164909661.png]: https://img-blog.csdnimg.cn/20200602164909661.png