Nothing captured – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

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.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

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();


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

Get expert answers on Elasticsearch/OpenSearch