Could not parse input for watch unexpected string field – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

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 is unable to parse the input for a watch due to an unexpected string field. This usually happens when there’s a syntax error or incorrect data type in the watch definition. To resolve this issue, you should first check the watch definition for any syntax errors. Make sure that all fields are correctly defined and that the data types match what is expected. If the error persists, try to simplify the watch definition to isolate the problematic part. Lastly, ensure that the Elasticsearch version you’re using supports the features used in your watch definition.

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 ” could not parse [{}] input for watch [{}]. unexpected string field [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “could not parse [{}] input for watch [{}]. unexpected string field [{}]” class name is HttpInput.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 if (expectedResponseBodyType == null) {
 throw new ElasticsearchParseException("could not parse [{}] input for watch [{}]. unknown content type [{}]";
 TYPE; watchId; parser.text());
 }
 } else {
 throw new ElasticsearchParseException("could not parse [{}] input for watch [{}]. unexpected string field [{}]";
 TYPE; watchId; currentFieldName);
 }
 } else {
 throw new ElasticsearchParseException("could not parse [{}] input for watch [{}]. unexpected token [{}]"; TYPE; watchId;
 token);

 

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?