# OpenSearch Cluster

Source: https://calc.onpremeasy.com/product/opensearch-cluster/

## Indicative from-price range

Indicative from-price range for self-hosting OpenSearch Cluster on 3 servers: about $72 to $337 per month (USD), as of 2026-10-19, for the reference workload (Data nodes: 3; Cluster manager nodes: 3; Primary indexed data (GB): 500; Replica copies per shard: 1). From-price by provider, each the cheapest server in that provider's own shortlist: $72 on DigitalOcean (basic-2vcpu-4gb, 2 vCPU, 4 GB RAM, fra1); $192 on OVHcloud (rise-1, 6 vCPU, 32 GB RAM, eu-west); $199 on Hetzner (AX41, 6 vCPU, 64 GB RAM, eu-central); $413 on Amazon Web Services (i7i.large, 2 vCPU, 16 GB RAM, us-east-1); $528 on Google Cloud (c4a-standard-4-lssd, 4 vCPU, 16 GB RAM, us-central1); $1,278 on Servers.com (el-01, 16 vCPU, 192 GB RAM, eu-west); $1,524 on Microsoft Azure (L8s_v4, 8 vCPU, 64 GB RAM, eastus).

Reference workload:
- Data nodes: 3
- Cluster manager nodes: 3
- Primary indexed data (GB): 500
- Replica copies per shard: 1

Price snapshot: 2026-10-19. Currency: USD. FX snapshot: 2026-10-19.

Configuration: Low end: 3 x basic-2vcpu-4gb (DigitalOcean, 2 vCPU, 4 GB RAM, about $24 per server per month). High end: 3 x rise-m (OVHcloud, 12 vCPU, 64 GB RAM, about $112 per server per month).

Methodology: This range is generated automatically from public provider price lists. It has not been reviewed by a person, it is not a quote, and it may differ from the total the calculator chooses for your own workload with its AI step. Method: the calculator's offer shortlist for the reference workload (the same ranking it builds before the AI step, up to 12 offers across providers; 12 here) is priced at its monthly list price in USD. The low end is the cheapest of the per-provider from-prices below and the high end is the median server of the combined shortlist, each multiplied by 3, the smallest baseline topology (combined-nodes). The from-price for each provider applies the same method to that provider's own shortlist (the calculator's ranking restricted to that provider), so it is the cheapest server that ranking offers there, not a recommendation. Prices are taken from the price snapshot dated 2026-10-19; prices quoted in EUR are converted with the ECB reference rate dated 2026-10-19. Servers with fewer than 2 vCPU or less than 4 GB RAM are not priced. Only server rental list prices for the product's own servers are counted: dependencies, licences, support, traffic charges, taxes and setup fees are not included.

Price sources:
- [Amazon Web Services](https://pricing.us-east-1.amazonaws.com/offers/v1.0/aws/AmazonEC2/current/us-east-1/index.json)
- [DigitalOcean](https://www.digitalocean.com/pricing/droplets)
- [Google Cloud](https://cloudbilling.googleapis.com/v1/services/6F81-5844-456A/skus)
- [Hetzner](https://www.hetzner.com/_resources/app/data/app/live_data_en_EUR.json)
- [Microsoft Azure](https://prices.azure.com/api/retail/prices)
- [OVHcloud](https://eu.api.ovh.com/1.0/order/catalog/public/eco?ovhSubsidiary=FR)
- [Servers.com](https://www.servers.com/products/scalable-bare-metal)

OpenSearch is an open-source search and analytics engine, forked from Elasticsearch, that indexes JSON documents for full-text search, log analytics, and vector search across a distributed cluster of nodes.

## Baseline topologies

- data-plus-manager: 4 nodes minimum; roles: cluster-manager, data
- combined-nodes: 3 nodes minimum; roles: combined

## What drives the cost

- Data nodes: Nodes that hold shards and handle indexing and search requests.
- Cluster manager nodes: Control-plane nodes for cluster state, elections, and shard allocation. Use an odd count for quorum.
- Primary indexed data (GB): Estimated size of primary shards before replicas and growth headroom.

## Frequently asked questions

### How much does it cost to self-host OpenSearch Cluster?

Indicative from-price range for self-hosting OpenSearch Cluster on 3 servers: about $72 to $337 per month (USD), as of 2026-10-19, for the reference workload (Data nodes: 3; Cluster manager nodes: 3; Primary indexed data (GB): 500; Replica copies per shard: 1). From-price by provider, each the cheapest server in that provider's own shortlist: $72 on DigitalOcean (basic-2vcpu-4gb, 2 vCPU, 4 GB RAM, fra1); $192 on OVHcloud (rise-1, 6 vCPU, 32 GB RAM, eu-west); $199 on Hetzner (AX41, 6 vCPU, 64 GB RAM, eu-central); $413 on Amazon Web Services (i7i.large, 2 vCPU, 16 GB RAM, us-east-1); $528 on Google Cloud (c4a-standard-4-lssd, 4 vCPU, 16 GB RAM, us-central1); $1,278 on Servers.com (el-01, 16 vCPU, 192 GB RAM, eu-west); $1,524 on Microsoft Azure (L8s_v4, 8 vCPU, 64 GB RAM, eastus). This is an automatically generated indicative figure from public price lists (price snapshot 2026-10-19), not a quote.

### What drives the cost of self-hosting OpenSearch Cluster?

The sizing inputs the calculator uses for OpenSearch Cluster are: Data nodes; Cluster manager nodes; Primary indexed data (GB). Cost also depends on the number of servers and the provider chosen.

### What is the minimum number of servers for OpenSearch Cluster?

The smallest baseline topology in the calculator's profile for OpenSearch Cluster is combined-nodes (3 servers). Other baseline topologies: data-plus-manager (4 servers minimum). The reference range above is computed for 3 servers.

Size OpenSearch Cluster for your own workload: https://calc.onpremeasy.com/?product=opensearch-cluster

## Sources

- https://opensearch.org/
- https://opensearch.org/docs/latest/
- https://github.com/opensearch-project/OpenSearch