Unexpected ip range parameter parser currentName – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch encounters an unexpected IP range parameter during the parsing process. This could be due to incorrect syntax or an invalid IP range. To resolve this issue, you can check the IP range parameter for any syntax errors or invalid values. Ensure that the IP range is correctly formatted and falls within the acceptable range. If the error persists, consider debugging your code to identify any potential issues with the parser.

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This guide will help you check for common problems that cause the log ” Unexpected ip range parameter: [” + parser.currentName() + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: parser, search, aggregations.

Log Context

Log “Unexpected ip range parameter: [” + parser.currentName() + “]” class name is IpRangeAggregationBuilder.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 } else if (RangeAggregator.Range.TO_FIELD.match(parser.currentName(); parser.getDeprecationHandler())) {
 to = parser.textOrNull();
 } else if (MASK_FIELD.match(parser.currentName(); parser.getDeprecationHandler())) {
 mask = parser.text();
 } else {
 throw new ParsingException(parser.getTokenLocation(); "Unexpected ip range parameter: [" + parser.currentName() + "]");
 if (mask != null) {
 if (key == null) {
 key = mask;


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