1. Reference Documents
https://doc.yonyoucloud.com/doc/logstash-best-practice-cn/index.html
2. parameters and configuration
-e: execute command line parameter to start configuration example; ./ bin / logstash -e 'stdin INPUT {{Output} {} {}} stdout'
-f: Start instance via the configuration file; ./bin/logstash -f config / logstash.conf
-t: test profile correctness; ./bin/logstash -f config / logstash.conf -t
the -l: after starting the instance, specify the print log file directory; ./bin/logstash-f config / -l logs logstash.conf / logstash.log
-w: filter specified number of threads, the default is 5; ./bin/logstash-f config / logstash.conf -w 8