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Autocomplete Search

There are various approaches for autocomplete in Elasticsearch. Here are some tips & examples for choosing the approach best suited to your...

Cross-Cluster Search in Elasticsearch & OpenSearch

Cross-cluster search enables users to execute a query across multiple Elasticsearch or OpenSearch clusters. To perform cross-cluster search...

Delete By Query

Elasticsearch delete by query is an API, which provides functionality to delete all documents based on the matching query. If you don't...

Elasticsearch Analytics - How to Leverage Data Frame Analytics in Elasticsearch

Elasticsearch data frame analytics allows you to supercharge your data with extra insights. There are 3 types of data frame analytic jobs...

Elasticsearch categorize_text Aggregation

The Elasticsearch aggregation 'categorize_text' helps analyze & extract categories from semi-structured text. To use this aggregation...

Elasticsearch Collapse

This guide discusses the Elasticsearch collapse feature, including use cases, how to implement it, and best practices for optimizing...

Elasticsearch Health Check Curl

A common method to perform an Elasticsearch health check is by using cUR. Here's how to use cURL to check the health of your cluster.

Elasticsearch High Level REST Client Deprecated

The Elasticsearch High Level REST Client has been deprecated since v7.7.0. Here is why it was deprecated, the alternatives available & more.

Elasticsearch Index Management

Efficient management of Elasticsearch indices is crucial for maintaining optimal performance. The best practices to manage your index list...

Elasticsearch License Expired - How to Handle Expired Elasticsearch Licenses

Elasticsearch will continue to work even if your license expires, but the paid features will be blocked. To buy a new license and update it...

Elasticsearch Monitoring with Grafana and Prometheus 

Here's how to set up Elasticsearch monitoring using Prometheus and Grafana. To monitor Elasticsearch with Prometheus you first need to...

Elasticsearch Multi Index Query

Multi-index queries in Elasticsearch allow users to search for documents across several indices simultaneously. To query multiple indices...

Elasticsearch Multiple Indexes

This guide discusses best practices and performance optimization techniques when working with multiple indexes in Elasticsearch.

Elasticsearch Not Null Query

Here's how to create not null queries in Elasticsearch, which will help you find documents with existing or missing fields.

Elasticsearch Pagination - Which Technique to Use Depending on Your Use Case

Elasticsearch currently provides 3 different techniques for fetching many results: Pagination, Search-After and Scroll. To learn how to...

Elasticsearch Python Example

In this guide, we'll walk through an example of using the Elasticsearch Python client, Elasticsearch-py, to index & search documents.

Elasticsearch Rollup: How to Rollup Data in Elasticsearch

Rollup jobs in Elasticsearch reduce old data storage costs by storing summaries of data for a given time period. Rollup examples include...

Elasticsearch Runtime Fields - How to Use Runtime Fields in Elasticsearch

An Elasticsearch runtime field is a field evaluated at query time instead of indexing time, which allows to modify our schema at the...

Elasticsearch Search Suggestion - Term Suggester, Phrase Suggester, Completion Suggester (Autocomplete)

Elasticsearch offers three types of suggesters: term suggesters, phrase suggesters & completion suggesters (autocomplete). Suggesters work...

Elasticsearch Synthetic _source 

The synthetic _source mode in Elasticsearch is used to configure an index so that it saves storage space & doesn't duplicate data. To setup...

Elasticsearch Task Management API

The Elasticsearch task management API helps you manage long-running tasks. To create, monitor, cancel & retrieve the results of tasks...

Elasticsearch Truncate Field

In this article, we will discuss various techniques and best practices for truncating fields in Elasticsearch. First...

How to Activate and Use Elasticsearch Slow Logs

By analyzing your slow logs, you can understand why searches are slow and how to optimize them. To enable slow logging in Elasticsearch...

How to Ensure Slow Logs Don’t Get Cut Off (Applicable before ES 8.0)

Analyzing search slow logs can provide users with advanced insights like the number of costly queries, reasons why queries were costly, so...

How to Improve your Elasticsearch Aggregation Performance

There are multiple ways to improve your Elasticsearch aggregation performance. First, you should limit the scope by filtering documents...

How to Increase Elasticsearch Search Speed

By optimizing and maintaining Elasticsearch search speed, you can improve your product’s user experience. Here's how to speed up search...

How to Optimize Search Performance in Elasticsearch

One of the most difficult issues to manage and resolve in Elasticsearch is poor search performance. This blog goes through clear steps to...

How to Recover Elasticsearch Dangling Indices

Follow these steps to list and restore dangling indices in Elasticsearch: (1) Run the dangling indices API & copy the...

Register Snapshot Repository

To create & restore snapshots, you need to register a snapshot repository with every Elasticsearch node in the cluster. Here are the steps...

Search Latency

This guide explores how to reduce Elasticsearch search latency based on a key study. The first lesson is to always...

Snapshot

An Elasticsearch snapshot is a backup of an index taken from a running cluster. It's better to use snapshots instead of disk backups due...

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