Failed to access url – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.1

Briefly, this error occurs when Elasticsearch cannot access a specific URL. This could be due to network issues, incorrect URL, or the target server might be down. To resolve this, you can check your network connection, verify the URL, or check the status of the target server. If the issue persists, you may need to check your Elasticsearch configuration or firewall settings.

This guide will help you check for common problems that cause the log ” Failed to access url [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “Failed to access url [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                failure = e;
            if (System.nanoTime() 


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