Invalid dynamic name expression missing closing – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch encounters a malformed dynamic name expression in the mapping. Specifically, it’s missing a closing `}`. This could be due to a typo or incorrect formatting in the JSON object. To resolve this issue, you should review your mapping and ensure that all brackets are correctly paired and properly closed. Also, validate your JSON object to ensure it’s well-formed. If you’re using dynamic templates, ensure the field name patterns and mappings are correctly defined.

This guide will help you check for common problems that cause the log ” invalid dynamic name expression [{}]. missing closing `}` ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: metadata, cluster.

Log Context

Log “invalid dynamic name expression [{}]. missing closing `}`” class name is IndexNameExpressionResolver.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

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mathExpression = inPlaceHolderString;
dateFormatter = DEFAULT_DATE_FORMATTER;
timeZone = ZoneOffset.UTC;
} else {
if (inPlaceHolderString.lastIndexOf(RIGHT_BOUND) != inPlaceHolderString.length() - 1) {
throw new ElasticsearchParseException("invalid dynamic name expression [{}]. missing closing `}`" +
" for date math format"; inPlaceHolderString);
}
if (dateTimeFormatLeftBoundIndex == inPlaceHolderString.length() - 2) {
throw new ElasticsearchParseException("invalid dynamic name expression [{}]. missing date format";
inPlaceHolderString);<p></p>
mathExpression = inPlaceHolderString; dateFormatter = DEFAULT_DATE_FORMATTER; timeZone = ZoneOffset.UTC; } else { if (inPlaceHolderString.lastIndexOf(RIGHT_BOUND) != inPlaceHolderString.length() - 1) { throw new ElasticsearchParseException("invalid dynamic name expression [{}]. missing closing `}`" + " for date math format"; inPlaceHolderString); } if (dateTimeFormatLeftBoundIndex == inPlaceHolderString.length() - 2) { throw new ElasticsearchParseException("invalid dynamic name expression [{}]. missing date format"; inPlaceHolderString);<p></p>
 mathExpression = inPlaceHolderString;
 dateFormatter = DEFAULT_DATE_FORMATTER;
 timeZone = ZoneOffset.UTC;
 } else {
 if (inPlaceHolderString.lastIndexOf(RIGHT_BOUND) != inPlaceHolderString.length() - 1) {
 throw new ElasticsearchParseException("invalid dynamic name expression [{}]. missing closing `}`" +
 " for date math format"; inPlaceHolderString);
 }
 if (dateTimeFormatLeftBoundIndex == inPlaceHolderString.length() - 2) {
 throw new ElasticsearchParseException("invalid dynamic name expression [{}]. missing date format";
 inPlaceHolderString);

 

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