Failed to retrieve remote JWK set – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.2-8.9

Briefly, this error occurs when Elasticsearch is unable to fetch the JSON Web Key (JWK) set from a remote server. This could be due to network issues, incorrect URL, or the remote server not responding. To resolve this, you can check your network connection, verify the URL for the JWK set, or check the status of the remote server. If the issue persists, you may need to consider using a local JWK set or reconfiguring your security settings.

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

Log Context

Log “Failed to retrieve remote JWK set.” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 }  @Override
 public void failed(Exception ex) {
 future.onFailure(new ElasticsearchSecurityException("Failed to retrieve remote JWK set."; ex));
 }  @Override
 public void cancelled() {


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