Following the different threads (https://www.elastic.co/guide/en/logstash/current/offline-plugins.html and Read a gzip file with gzip_lines codec), I built gzip_lines plugin on my Linux (offline) server. Also, I did not reference the .gz files directly from my logstash conf file but I kept them (their absolute paths) in a .txt file line by line. BUT, logstash still not working as expected, it reads that text file line by line and not parsing the .gz files mentioned in it. can any one can help on this?