High load issues on node (related to shard allocation)

Elastic Stack Elasticsearch
1

I have a "warm" node with spinning disks which is experiencing high loads due to io waits. The problem is that some very active hot ingestion shards are being allocated to this node.

Is there anyway I can stop ES from allocating shards from hot indexes to this node?

2

index.routing.allocation.include._tier seems to do the trick.

3

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