Hi! To increase search performance, I tried to add a replica to my cluster. Initially, I measured a response time of around 700ms for a specific request with a single node with a primary shard. After adding a node and a replica shard to the cluster, it takes averagely 2000ms to get the result of …

With such a small dataset, it is very hard to reason about what the hot spot might be. I am not sure we can help much here. Even with replicas and 2000ms is a response time, that is still only 2ms per search request, which should be fast enough for most use-cases? I am reluctant to try to optimize …

Getting worse search performance with a replica shard

Elastic Stack Elasticsearch

akaizora (Akai) September 20, 2016, 8:09am 3

I query multiple times. For the example, I did it 1000 times.

Topic		Replies	Views
Search performance improovment by adding replicas shards Elasticsearch	4	1424	December 19, 2019
Improve search performance beyond 2x Elasticsearch	4	266	March 19, 2023
Replicas reduce performance complex queries drastically? Elasticsearch	6	3247	October 17, 2018
Elasticsearch replica shard distribution Elasticsearch	3	898	August 31, 2017
Does adding multiple shard replicas increase performance? Elasticsearch	5	2296	March 28, 2017

Getting worse search performance with a replica shard

Related topics