AWS OpenSearch, formerly known as Amazon Elasticsearch, is a powerful cloud-based search and analytics platform used by organizations for applications such as full-text search and log and event data analysis. However, without proper optimization, OpenSearch bills can spiral out of control.
In this post, we will help you keep your OpenSearch costs in check using these 9 steps.
When choosing an OpenSearch instance, consider factors such as the nature of your workload, the volume of data to store and index, and query performance requirements. By carefully evaluating your needs, you can select an instance type that strikes the right balance between performance and cost.
Analyze your usage patterns and consider reserving instances if you have a consistent, long-term workload. By committing to a one or three-year term, you can save up to 66% compared to on-demand pricing.
Index lifecycle management (ILM) policies automate the management of your data in OpenSearch over time. ILM policies can reduce storage costs by moving less frequently accessed data to less expensive storage tiers or deleting old, unused data.
Efficiently managing data storage can significantly reduce costs in OpenSearch. You can optimize data storage in these ways:
By sharing a single OpenSearch cluster with multiple accounts, you can reduce the overall number of instances and resources required, resulting in significant cost savings. Implementing cross-account access minimizes costs, simplifies administration, and enhances visibility into your OpenSearch deployment.
Snapshots provide point-in-time backups for your cluster. By adjusting the snapshot frequency and retention period based on your business requirements and data recovery needs, you can save on storage costs. Carefully review and optimize your snapshot and retention policies to ensure efficient use of storage resources and reduce unnecessary expenses.
Optimizing the number of shards and replicas in your OpenSearch indices is crucial for balancing performance, resilience, and cost. Distributing data across multiple shards can improve query performance, but too many shards can increase cluster overhead and costs. Aim to find the right balance based on your workload requirements.
Increasing the number of replicas can enhance search performance and fault tolerance but also increases storage and resource costs. Analyze your needs and determine the appropriate replica count for each index.
Caching is a powerful tool for improving query performance and reducing resource consumption in OpenSearch. AWS OpenSearch provides several caching mechanisms:
Efficient data ingestion practices can significantly reduce costs associated with data transfer and processing. Consider the following best practices for optimizing data ingestion in OpenSearch:
Optimizing costs in OpenSearch is an important aspect of maximizing the value of your AWS deployment. By implementing some of the measures listed in this post, such as choosing the right instance type and size, utilizing reserved instances, leveraging index lifecycle management, optimizing data storage, and implementing cross-account access, you can effectively reduce costs in your OpenSearch deployment without compromising performance and functionality. A well-tuned OpenSearch is a cost-effective engine for unlocking insights and propelling you towards data-driven success without financial strain.