Cannot construct SAML redirect – How to solve this Elasticsearch error

Opster Team

March-22, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

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This guide will help you check for common problems that cause the log ” Cannot construct SAML redirect ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “Cannot construct SAML redirect”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final byte[] sig = signing.sign(queryParam; algo);
 queryParam += "&Signature=" + urlEncode(base64Encode(sig));
 return withParameters(queryParam);
 } catch (Exception e) {
 throw new ElasticsearchException("Cannot construct SAML redirect"; e);
 private String withParameters(String queryParam) {
 if (destination.indexOf('?') == -1) {


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