Index patterns keep disappearing

Hi I was experiencing this issue, I see it has been reported previously.

As it seems there were no solutions I though I would post my findings.
I determined that the cause was that I had defined a catchall index-template with a lifecycle policy.
The idea was to only keep any unknown index names for 3 days.
This worked fine until we upgraded. I am guessing that .kibana index was recreated and then had the lifecycle policy applied.

there is no warning when creating a '*' index template. IMO this should not apply to system indices.

I raised a bug with elastic

I am only mentioning it here in case others experiance the same issue.

I resolved it by creating a template to match ".*" with no life cycle and a very low priority.

1 Like

Thanks for sharing your finding @mutt13y!

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