Today morning when I've tried to open my Kibana, I found the following error in my browser.
Then I've restarted Kibana. But after the restart, all of my indexes have been gone.
After that, to view all my works such that dashboards, visuals, I've imported my Saved Object backup file that is in json format.
After imported, I found all the visuals and dashboards are there as it is but I've lost past data from elasticsearch. I found data only from yesterday's 00:00 hour to the current date-time.
Why this type of sudden data loss has happened?
Can I somehow track the incident from a log or somewhere?
I've read a few posts in the elastic blog that refer to the same kind of issue.
Is that that a security threat?
Please help guys!!