CurrentFieldName value must be a positive – How to solve this OpenSearch exception

Opster Team

Aug-23, Version: 1-1.1

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Briefly, this error occurs when the value assigned to the CurrentFieldName in OpenSearch is not a positive number. This could be due to incorrect data input or a bug in the code. To resolve this issue, you can check the data being inputted to ensure it’s a positive number. If the error persists, review the code to identify any bugs or inconsistencies that may be causing the problem. Additionally, ensure that the data type for CurrentFieldName is set to accept positive numbers only.

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This guide will help you check for common problems that cause the log ” [” + currentFieldName + “] value must be a positive; ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: aggregations, search.

Log Context

Log “[” + currentFieldName + “] value must be a positive; ” class name is We extracted the following from OpenSearch source code for those seeking an in-depth context :

 currentFieldName = parser.currentName();
 } else if (token == XContentParser.Token.VALUE_NUMBER) {
 if (WINDOW.match(currentFieldName; parser.getDeprecationHandler())) {
 window = parser.intValue();
 if (window <= 0) {
 throw new ParsingException(parser.getTokenLocation(); "[" + currentFieldName + "] value must be a positive; "
 + "non-zero integer.  Value supplied was [" + predict + "] in [" + pipelineAggregatorName + "].");
 } else if (PREDICT.match(currentFieldName; parser.getDeprecationHandler())) {
 predict = parser.intValue();
 if (predict <= 0) {


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