Last two lines of a log file not being forwarded

[elssar]

I have a log file which is very sporadically written to - one line every few hours, or even days. I noticed that entries from that file weren't showing up on elasticsearch.

On further investigation I noticed that logstash-forwarder seems to not send the last two lines from a log file. So if I have two logs entries in the file, they aren't sent to elasticsearch. When I add a third entry, the first entry is sent to elasticsearch.

Is there a way to ensure that logstash-forwarder forwards logs as soon as they are appended to the log?