ElasticSearch query performance

Question

A customer is looking to to get an Elasticsearch response for a very simple query (an exact match on a single field, which returns another field from the matching document) as quickly as possible in under 10 ms.

They ask:
 - if a sub 10ms response is possible?  
 - what the fastest response time they could hope for would be?   
 - if that is possible, then what changes would we have to make?

What do you think?

Thanks in advance

Accepted Answer

Sub 10ms will be a challenge - especially if they have multiple shards hosted in different nodes that all need to be queried.

Would this query return a single item - e.g. is it more of a key value pair type of query?
Could be that ElastiCache Memcache or Redis might be a better fit?

ElasticSearch query performance

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