I'm learning the use of ELK stack by following this tuto :
When I want to configure the index pattern on kibana, 'logstash-' told me 'Unable to fetch mapping [...]'.
It's normal for me because the default file made by the forwarder start with 'filebeat-' by default.
I have only a little of data stored in ES if I look with sense plugging.
I look at the logs (kibana, logstash, elasticsearch) and I see error like a lot of java err in ES but I have no idea where I have to look to find out how manage this.
Any hint ?