Failed to read private key from – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.6-8.9

Briefly, this error occurs when Elasticsearch is unable to read the private key from the specified location. This could be due to incorrect file path, insufficient permissions, or the file being corrupted. To resolve this, ensure the file path is correct and the file is in the right format. Check the permissions of the file, Elasticsearch should have read access. If the file is corrupted, you may need to generate a new private key.

This guide will help you check for common problems that cause the log ” Failed to read private key from ” 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 read private key from” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 terminal.println("The PEM key stored in " + path + " requires a password.");
 return terminal.readSecret("Password for " + path.getFileName() + ":");
 } catch (IOException | GeneralSecurityException e) {
 throw new ElasticsearchException("Failed to read private key from " + path; e);
 }  private boolean askExistingCertificateAuthority(Terminal terminal) {
 printHeader("Do you have an existing Certificate Authority (CA) key-pair that you wish to use to sign your certificate?"; terminal);