Failed to load settings – How to solve this Elasticsearch error

Opster Team

March-22, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” Failed to load settings ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugins, settings.

Log Context

Log “Failed to load settings”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final Settings customSettings;
 try {
 customSettings = Settings.builder().loadFromPath(customSettingsYamlFile).build();
 assert customSettings != null;
 } catch (IOException e) {
 throw new ElasticsearchException("Failed to load settings"; e);
 this.simple = SIMPLE_SETTING.get(customSettings);
 this.bool = BOOLEAN_SETTING.get(customSettings);
 this.validated = VALIDATED_SETTING.get(customSettings);


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