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

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch is unable to parse the input for a watch due to an unexpected array field. This usually happens when the watch JSON structure is incorrect or malformed. To resolve this issue, you should first verify the JSON structure of your watch. Make sure that the array fields are correctly formatted and all necessary brackets are in place. If the problem persists, check the Elasticsearch logs for more detailed error messages that can help you pinpoint the exact issue.

This guide will help you check for common problems that cause the log ” could not parse [{}] input for watch [{}]. unexpected array field [{}] ” 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 array field [{}]” class name is SearchInput.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throw new ElasticsearchParseException("could not parse [{}] input for watch [{}]. expected a string value in " +
 "[{}] array; but found [{}] instead"; TYPE; watchId; currentFieldName; token);
 }
 }
 } else {
 throw new ElasticsearchParseException("could not parse [{}] input for watch [{}]. unexpected array field [{}]"; TYPE;
 watchId; currentFieldName);
 }
 } else if (Field.TIMEOUT.match(currentFieldName; parser.getDeprecationHandler())) {
 timeout = timeValueMillis(parser.longValue());
 } else if (Field.TIMEOUT_HUMAN.match(currentFieldName; parser.getDeprecationHandler())) {

 

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