Briefly, this error occurs when the ‘hint’ field in Elasticsearch is assigned a value that is neither a string nor a list of strings. Elasticsearch expects the ‘hint’ field to contain either a single string or a list of strings. To resolve this issue, you should check the data you’re trying to index and ensure that the ‘hint’ field contains the correct data type. If it’s not a string or a list of strings, you should convert it to the appropriate type before indexing.
This guide will help you check for common problems that cause the log ” [labels] hint supports either string or list of strings as its value ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “[labels] hint supports either string or list of strings as its value” class name is SuggestProfilesRequest.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
throw new ElasticsearchParseException("[labels] hint supports either string value or list of strings");
}
}
labels.put(entry.getKey(); List.copyOf(values));
} else {
throw new ElasticsearchParseException("[labels] hint supports either string or list of strings as its value");
}
}
this.labels = Map.copyOf(labels);
} else {
this.labels = null;
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