Failed to read otherName from certificate – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch is unable to read the ‘otherName’ field from a certificate, which is often used for identification purposes. This could be due to a malformed certificate, incorrect configuration, or a compatibility issue. To resolve this, you can try regenerating the certificate, ensuring it’s correctly configured, or updating Elasticsearch to a version that supports the certificate’s format. Additionally, check the certificate’s ‘otherName’ field for any unusual characters or formatting that might be causing the issue.

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This guide will help you check for common problems that cause the log ” Failed to read ‘otherName’ from certificate [{}] ” 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 ‘otherName’ from certificate [{}]” classname is RestrictedTrustManager.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    id
                );
                return null;
            }
        } catch (IOException e) {
            logger.warn("Failed to read 'otherName' from certificate [{}]"; certificate.getSubjectX500Principal());
            return null;
        }
    }

    private static Collection> getSubjectAlternativeNames(X509Certificate certificate) throws CertificateParsingException {

 

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