Logstash log parsing in logstash

Hello,
is there way to parse logstash logs in logstash?
json filter doesn't seem to be working on this...

is there way to parse logstash logs in logstash?

There's no easy way, but it would of course be possible to set up a rather complex set of filters to do it. I'm pretty sure there's a GitHub issue for making it easier to machine-parse the Logstash logs.

json filter doesn't seem to be working on this...

That's not surprising since the logs aren't in JSON format.

Thank you for info.