Invalid URI: – How to solve this Elasticsearch error

Opster Team

July-20, 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.

Briefly, this error message typically occurs when Elasticsearch receives an invalid or improperly formatted Uniform Resource Identifier (URI) in a client request. This can be caused by a variety of issues, such as invalid characters, incorrect syntax, or an incorrect port number. To resolve this issue, ensure that the URI is correctly formatted and that the necessary components are included.

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 ” Invalid URI: ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “Invalid URI:”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final URI redirectUri;
 try {
 redirectUri = new URI(redirectUriString);
 } catch (URISyntaxException e) {
 // This should never happen as it's already validated in the settings
 throw new SettingsException("Invalid URI:" + RP_REDIRECT_URI.getKey(); e);
 final String postLogoutRedirectUriString = config.getSetting(RP_POST_LOGOUT_REDIRECT_URI);
 final URI postLogoutRedirectUri;
 try {
 postLogoutRedirectUri = new URI(postLogoutRedirectUriString);


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