Briefly, this error occurs when Elasticsearch is unable to parse the input for a watch because it’s expecting an object but is finding a different data type instead. This could be due to incorrect formatting or data type mismatch in the watch definition. To resolve this, ensure that the watch input is correctly formatted as a JSON object. Also, check the data types of the fields in the watch definition to ensure they match what Elasticsearch is expecting. If the error persists, consider redefining the watch with the correct data types and structure.
This guide will help you check for common problems that cause the log ” could not parse [{}] input for watch [{}]. expected an object but found [{}] instead ” 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 [{}]. expected an object but found [{}] instead” class name is SimpleInput.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
return payload.toXContent(builder; params);
} public static SimpleInput parse(String watchId; XContentParser parser) throws IOException {
if (parser.currentToken() != XContentParser.Token.START_OBJECT) {
throw new ElasticsearchParseException("could not parse [{}] input for watch [{}]. expected an object but found [{}] instead";
TYPE; watchId; parser.currentToken());
}
Payload payload = new Payload.Simple(parser.map());
return new SimpleInput(payload);
}
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