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

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch encounters an unexpected IP range parameter during the parsing process. This could be due to incorrect syntax, an invalid IP range, or a bug in the software. To resolve this issue, you can try the following: 1) Check and correct the syntax of your IP range parameter; 2) Verify that the IP range you’re using is valid and correctly formatted; 3) Update your OpenSearch software to the latest version to fix any potential bugs.

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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 OpenSearch concepts: parser, aggregations, search.

Log Context

Log “Unexpected ip range parameter: [” + parser.currentName() + “]” class name is IpRangeAggregationBuilder.java. We extracted the following from OpenSearch 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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