Empty script id found and dropped - Common causes and quick fixes

Empty script id found and dropped – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8-8.9

Briefly, this error occurs when Elasticsearch encounters an empty script id in a script query or script field. This could be due to a programming error or a malformed request. To resolve this issue, you should check your application code or request body to ensure that all script ids are correctly specified and not left empty. Additionally, ensure that the script id is valid and exists in the Elasticsearch script library. If the error persists, consider debugging your application to identify the source of the empty script id.

This guide will help you check for common problems that cause the log ” empty script [” + id + “] found and dropped ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “empty script [” + id + “] found and dropped” classname is ScriptMetadata.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    // since there is a guarantee no more empty scripts will exist
                    if (source.getSource().isEmpty()) {
                        if (Script.DEFAULT_TEMPLATE_LANG.equals(source.getLang())) {
                            logger.warn("empty template [" + id + "] found and dropped");
                        } else {
                            logger.warn("empty script [" + id + "] found and dropped");
                        }
                    } else {
                        scripts.put(id; source);
                    }
                    id = null;