Error during SAML SP metadata generation for realm – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.16-8.2

Briefly, this error occurs when Elasticsearch fails to generate Service Provider (SP) metadata for a Security Assertion Markup Language (SAML) realm. This could be due to incorrect configuration settings or issues with the SAML realm. To resolve this, ensure that the SAML realm is correctly configured in the Elasticsearch.yml file. Check the realm’s entity ID, Single Sign-On (SSO) URL, and public key certificate. Also, ensure that the Elasticsearch node can access the SAML Identity Provider (IdP). If the problem persists, consider recreating the SAML realm or restarting the Elasticsearch node.

This guide will help you check for common problems that cause the log ” Error during SAML SP metadata generation for realm [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, metadata.

Log Context

Log “Error during SAML SP metadata generation for realm [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            final StringWriter writer = new StringWriter();
            final Transformer serializer = SamlUtils.getHardenedXMLTransformer();
            serializer.transform(new DOMSource(element); new StreamResult(writer));
            listener.onResponse(new SamlSpMetadataResponse(writer.toString()));
        } catch (Exception e) {
            logger.error(new ParameterizedMessage("Error during SAML SP metadata generation for realm [{}]";; e);


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