If I have setup a 3 node cluster, deployed one index with 20 shards.
How can I determine that my current setup is inadequate, and I need to add
one replica or two replica shards per primary shards?
Even if I add another data node, I may get 5 primary shards on each, now if
that distributes load evenly, what is the need for replica shards?
IMPORTANT: Please note that my query will not be specific to a group of
shards, I mean, there is no way, I can route or classify my query as only
hitting a subsection of shards. It will actually go to all shards for every
Appreciate your response.
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