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.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.
Take a self-guided product tour to see for yourself (no registration required).This guide will help you check for common problems that cause the log ” Invalid Authentication Request query string (zero parameters) ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: request, query, plugin.
Log Context
Log “Invalid Authentication Request query string (zero parameters)”classname is SamlAuthnRequestValidator.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :
private ParsedQueryString parseQueryString(String queryString) throws ElasticsearchSecurityException {
final Map parameters = new HashMap<>();
RestUtils.decodeQueryString(queryString; 0; parameters);
if (parameters.isEmpty()) {
throw new ElasticsearchSecurityException("Invalid Authentication Request query string (zero parameters)");
}
logger.trace(new ParameterizedMessage("Parsed the following parameters from the query string: {}"; parameters));
final String samlRequest = parameters.get("SAMLRequest");
if (null == samlRequest) {
throw new ElasticsearchSecurityException(
Find & fix Elasticsearch problems
