I have a 4 node cluster with 7.7M docs indexed. 5 shards.
Fist I've tried with 1 replica (default config) and we tested the query
speed. It worked fine.
The we used the REST API to increase the number of replicas to 4 and after a
while the nodes reflected this change (in shards dirs stored locally all had
a copy of all the 5 shards).
The problems is that the query speed was exactly the same as when using 1
Any ideas why this happens? Shouldn't be any improvement at all?
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