Briefly, this error occurs when Elasticsearch is unable to parse the input for a watch. This is typically due to incorrect or malformed syntax in the watch definition. To resolve this issue, you should first verify the syntax of your watch definition. Ensure that it is correctly formatted as a JSON object. If the syntax is correct, check the data types of your input fields. They should match the expected data types in your watch definition. Lastly, ensure that all required fields are included in your watch definition.
This guide will help you check for common problems that cause the log ” could not parse input for watch [{}]. expected an object representing input [{}]; ” 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 representing input [{}];” class name is InputRegistry.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
if (factory == null) {
throw new ElasticsearchParseException("could not parse input for watch [{}]. unknown input type [{}]"; watchId; type);
}
input = factory.parseExecutable(watchId; parser);
} else {
throw new ElasticsearchParseException("could not parse input for watch [{}]. expected an object representing input [{}]; " +
"but found [{}] instead"; watchId; type; token);
}
} if (input == null) {
