Nothing captured – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch tries to extract data from a field using a regular expression, but the field doesn’t match the pattern. This could be due to incorrect regular expression or the field not containing the expected data. To resolve this, you can either correct the regular expression or ensure the field contains the expected data. Additionally, you can use the “ignore_missing” option to avoid the error when the field is missing or doesn’t match the pattern.

This guide will help you check for common problems that cause the log ” nothing captured ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: metadata, cluster.

Log Context

Log “nothing captured” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 "invalid dynamic name expression [{}]. date math placeholder is open ended";
 new String(text; from; length)
 if (beforePlaceHolderSb.length() == 0) {
 throw new ElasticsearchParseException("nothing captured");
 return beforePlaceHolderSb.toString();


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