I have an index with 3 primary and 1 replicas,total 6 shards for an index. I sent 5 messages to Elasticsearch cluster and these messages is distributed among 5 different shards. As a client i am curious how a client can retrieve particular message using document id. I've used GET test_index/_doc/…

Yes. See _routing field | Elasticsearch Guide [8.1] | Elastic routing_factor = num_routing_shards / num_primary_shards shard_num = (hash(_routing) % num_routing_shards) / routing_factor If no _routing is provided, then the _id is used.

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How documents is retrieved if we are not using _routing

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system (system) Closed May 2, 2022, 10:04am 5

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How documents is retrieved if we are not using _routing

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