I have 8 elasticsearch data node, and they save 200GB indexes per day.
Umm.. indexes replica setting is 1, so, As a result, 400GB indexes will saved.
By the way, I have a focus on elasitcsearch's performance.
If 1 of 8 node is failed, or If I shut down with specific node, cluster will delayed!
And I guess,, Cause of delay is primary node where in terminated node(unassigned node).
So I think, when I shut down node, without primary shard, it will be better performance on the job.
Am I wrong? Or, Elasticsearch have a function to change primary shard location? or, Do you have any plans?
My elasticsearch version is 6.1.2.
Also, I know elasticsearch have routing.allocation.exclude function, but it takes a lot of load to move 300GB shards.
I look forward to hearing from you.