We have some Elastic rollover indices managed by ILM. Mappings are defined in templates.
When we try to add mappings fields concepts collide:
The obvious way is (1) update the template and (2) provoke a rollover so the new index has the new mapping. BUT rolling over an ILM managed index breaks things. _ilm/explain will tell you index [blah] is not the write index for alias [blah-000004].
So... what do people do?
Directly updating the write index mapping might work, but it feels like there should be a better option?
This is Elastic 6.8.