Hello guys,
I got a some messages in Overview sub-menu like this Notification condition [NO_MASTER] has been fixed.
Then i check into Graylog2 logs, there are so many errors
https://paste.ubuntu.com/p/ZqkVfqSFHt/
Fortunately, i found this post but i am not sure if this will help me https://github.com/Graylog2/collector-sidecar/issues/194
Should i update my Filebeat version in all instance ?
How do i checked Beat version of Graylog ?
My graylog version is Graylog v2.5.1
Thank you