My logstash is not staying stable. Once i start the logstash process, I can view logs flowing to kibana for around 20-30 mins max and it then stops. However I see the logstash process is still running and the last logstash log generated was the one generated when I started the logstash. Restarting the logstash process works for another 20-30 mins and then the same. I am not sure of the way to know the real cause as there is nothing logged.
Below are few details I think you may want to know.
OS - Linux
Stack version - 6.2.3
I have 30 filebeat servers(say them fb01-fb30)
Server A has Kibana, Elasticsearch and Logstash(listening to fb01-fb10) installed.
Server B has logstash installed (fb11-fb20) and it sends data to ES on Server A.
Server C has logstash installed (fb21-fb30) and it sends data to ES on Server A.