Metadata _tier value after rollover

Elastic Stack Elasticsearch
1

Hey there,
Is there a way to change the Metadata _tier value after that an ILM is executed?
If an index starts with _tier set to data_hot and then it is moved to a warm node, can I change the Metadata automatically?
In this way I could query only data_hot indices

2

You can indeed change the _tier when it is moved to the warm node. You have a couple of options:

  1. Let ILM automatically change the _tier_preference to data_warm,data_hot when it migrates to the warm phase in ILM.
  2. Use the allocate action in the warm phase to change the _tier_preference to your desired tier when it migrates to the warm phase in ILM.

Hope that helps!