A positive maxspan value is required; found – 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 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.

This guide will help you check for common problems that cause the log ” A positive maxspan value is required; found ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: parser and plugin.

Log Context

Log “A positive maxspan value is required; found [{}]”classname  is LogicalPlanBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (numberCtx instanceof IntegerLiteralContext) {
 Number number = (Number) visitIntegerLiteral((IntegerLiteralContext) numberCtx).fold();
 long value = number.longValue(); 
 if (value <= 0) {
 throw new ParsingException(source(numberCtx); "A positive maxspan value is required; found [{}]"; value);
 String timeString = text(ctx.timeUnit().IDENTIFIER()); 
 if (timeString == null) {


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