Invalid ” + description + ” date format – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” invalid ” + description + ” date format ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin and license.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “invalid ” + description + ” date format”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

return DateUtils.endOfTheDay(parser.text());
 } else {
 return DateUtils.beginningOfTheDay(parser.text());
 } catch (IllegalArgumentException ex) {
 throw new ElasticsearchParseException("invalid " + description + " date format " + parser.text());
 public static Builder builder() {


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