trace 命令

trace 命令用于追踪某个 Client 或 Topic，打印日志信息到文件，详情请查看 日志与追踪。

trace start client[]

开启 Client 追踪:

$ ./bin/emqx_ctl log primary-level debug
debug
$ ./bin/emqx_ctl trace start client clientid log/clientid_trace.log
trace clientid clientid successfully
$ ./bin/emqx_ctl trace start client clientid2 log/clientid2_trace.log error
trace clientid clientid2 successfully

trace stop client

关闭 Client 追踪:

$ ./bin/emqx_ctl trace stop client clientid
stop tracing clientid clientid successfully

trace start topic[]

开启 Topic 追踪:

$ ./bin/emqx_ctl log primary-level debug
debug
$ ./bin/emqx_ctl trace start topic topic log/topic_trace.log
trace topic topic successfully
$ ./bin/emqx_ctl trace start topic topic2 log/topic2_trace.log error
trace topic topic2 successfully

trace stop topic

关闭 Topic 追踪:

$ ./bin/emqx_ctl trace topic topic off
stop tracing topic topic successfully

trace list

列出所有开启的追踪:

$ ./bin/emqx_ctl trace list
Trace (clientid=clientid2, level=error, destination="log/clientid2_trace.log")
Trace (topic=topic2, level=error, destination="log/topic2_trace.log")