LogStash 错误信息: Logstash could not be started because there is already another instance using the configured data directory. If you wish to run multiple instances, you must change the "path.data" setting.
解决方法:
切换到logshash 安装目录:
比如我的目录在: /usr/share/logstash/logstash-6.2.4 下,
找到data目录,然后进入cd data
查看 ls -lah 看到那个.lock 的文件删除即可
删除命令:rm -rf .lock 然后从新启动 即可