ELK重新加载跳过的旧文件

如何重新将跳过的旧文件导入到ELK。logstash-forwarder如何从新读取文件不知道该如何设置，有知道的朋友请告之下。

# cat /ttlsa/data/www.ttlsa.com.log | /opt/logstash-forwarder/bin/logstash-forwarder -config ttlsa.conf -spool-size 100 -log-to-syslog

ttlsa.conf 文件内容如下：文章源自运维生存时间-https://www.ttlsa.com/log-system/howto-elk-reload-the-skipped-old-files/

{
  "network": {
    "servers": [ "localhost:5000" ],
    "timeout": 15,
    "ssl ca": "/etc/pki/tls/certs/logstash-forwarder.crt"
  },
  "files": [
    {
      "paths": [ "-" ],
      "fields": { "type": "logfile" }
    }
   ]
}