The frozen tier partially downloads shards only. This commit
introduces an autoscaling decider that scales the total storage
on the tier according to a configurable percentage relative to
the total data set size.
Autoscaling expects data tiers to be used exclusively both for node
roles and in ILM policies. This commit adds a test demonstrating that
as well as documentation for the behavior.
We no longer regard the autoscaling APIs experimental though they are
only intended for use by ESS/ECE/ECK. This commit updates the docs
to reflect this and adds a minimal set of documentation for the
feature.
Co-authored-by: James Rodewig <40268737+jrodewig@users.noreply.github.com>
Henning Andersen
István Zoltán Szabó
Benjamin Trent