Capacity planning

Disk Watermark

There are various watermark thresholds on your Elasticsearch cluster. Elasticsearch considers the available disk space before...

Flood Stage Disk Watermark

When the “disk flood stage” threshold is passed on an Elasticsearch cluster, it will start to block core actions. To resolve this issue...

Heap Size Usage and JVM Garbage Collection

Higher heap sizes will give nodes more memory for indexing & search operations. However, it's key to maintain a healthy balance. First, you...

High Disk Watermark

The high disk watermark is one of the various thresholds on your ES cluster. It's important to understand what it means and how to handle...

How to Set Up a Hot/Warm/Cold/ Frozen Architecture in Elasticsearch - The Complete Guide

A multi-tier architecture allows for better organization of resources to fit various search use cases in Elasticsearch. In order to...

Low Disk Watermark

Low disk watermark is one of the various thresholds on your Elasticsearch cluster. Here are possible actions you can take to resolve...

Memory Usage Guide

The Elasticsearch process is very memory intensive. Elasticsearch uses a JVM (Java Virtual Machine), and close to 50% of the memory should...