Pipe expects a positive integer but found – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.9-7.15

Briefly, this error occurs when Elasticsearch receives a non-positive integer value in a place where it expects a positive integer. This could be due to incorrect configuration or a faulty query. To resolve this issue, you should first identify the source of the incorrect value. Check your Elasticsearch configurations and queries for any fields that should be positive integers. Ensure that these fields are not being set to negative values, zero, or non-numeric values. Correct these values to positive integers and try again.

This guide will help you check for common problems that cause the log ” Pipe [{}] expects a positive integer but found [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, parser.

Log Context

Log “Pipe [{}] expects a positive integer but found [{}]” class name is LogicalPlanBuilder.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 private Expression pipeIntArgument(Source source; String pipeName; List exps) {
 Expression expression = onlyOnePipeArgument(source; pipeName; exps);  if (expression.dataType().isInteger() == false || expression.foldable() == false || (int) expression.fold() < 0) {
 throw new ParsingException(expression.source(); "Pipe [{}] expects a positive integer but found [{}]"; pipeName; expression
 }  return expression;