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

Opster Team

August-23, Version: 6.8-7.15

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Briefly, this error occurs when Elasticsearch is unable to parse the input for a watch due to an unexpected token. This usually happens when there’s a syntax error in the watch definition. To resolve this issue, you should first check the watch definition for any syntax errors. Make sure that all brackets and quotation marks are correctly placed. Also, ensure that the correct data types are used for each field. If the error persists, try to simplify the watch definition to identify the problematic part.

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This guide will help you check for common problems that cause the log ” could not parse [{}] input for watch [{}]. unexpected token [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, search.

Log Context

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

 } else {
 throw new ElasticsearchParseException("could not parse [{}] input for watch [{}]. failed to parse [{}]. must be a " +
 "string value (e.g. 'UTC' or '+01:00')."; TYPE; watchId; currentFieldName);
 }
 } else {
 throw new ElasticsearchParseException("could not parse [{}] input for watch [{}]. unexpected token [{}]"; TYPE; watchId;
 token);
 }
 }  if (request == null) {

 

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