We have 4 nodes cluster, multiple indices each having 2 shards and 2
replicas. When creating new index, Elasticsearch puts two shards on the
same node (not the case every time). I assumed that when having 4 nodes, I
would have each shard (counting primaries and replicas) on different nodes.
Is this expected behavior for Elasticsearch to place shards of the index on
the same node instead of distributing them ?
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