I noticed I could not see all Logstash logs in journalctl -f -u logstash. I have some pipelines with stdout (ruby debug).
How can I get all my separate pipelines' logs into the files. I can see only the messages that Logstash is started in the log files.
My log4j and systemd files are Debian native ones.
My logstash.yml
path.logs: /var/log/logstash
pipeline.separate_logs: true