效果还是很明显的，有了格式化的输出
Tip: A Logstash pipeline has two required elements, input and output , and one optional element, filter . The input plugins consume data from a source, the filter plugins modify the data as you specify, and the output plugins write the data to a destination.
退出运行
使用 Ctrl C 退出 logstash
...
...
^CSIGINT received. Shutting down the pipeline. {:level=>:warn}
Logstash shutdown completed
[root@h102 ELK]# 使用 Ctrl D 退出 logstash
...
...
Logstash shutdown completed
[root@h102 etc]# 
