I have added few parameters into filebeat.yml and restarted it
found filebeat is not starting harvestor for all files
multiline.timeout: 25s close_timeout: 60m close_removed: true ignore_older: 48h clean_inactive: 72h clean_removed: true
Though I have ignore_older:48h, a harvestor started for file 2018-11-27
on other hand I have 25 files entry in filebeat.yml and almost 20 of them are updating continuously. but to surprise in total only 3 harvesters are started.