Index template

Hi Elastic community,

I've enabled mapper size plugin to help me with the sizing of my cloud cluster. I tried to modify an existing Index template with this API by adding a component template to enable the new meta field with this command:

PUT /_index_template/template_1
  "index_patterns": ["logs-my.dataset-*"],
  "composed_of": ["template1", "template2"]

It ended up overriding all of the index template settings, only index_patterns and composed_of are shown when I call this command compared to what it was displayed before the modification:

GET _index_template/template_1

Fortunately, I've copied the whole settings before updating the template. What did I do wrong? Anytime I want to modify a single setting, I must include all of the settings even if they are not impacted by the change?



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