Type type cannot be used in multi field – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when you try to use a data type that is not supported in a multi-field in Elasticsearch. Multi-fields are used for indexing a single field in different ways, but not all data types are supported. To resolve this issue, you can either change the data type of the field to one that is supported in multi-fields, or remove the field from the multi-field. Alternatively, you can use a different method to index the field if the data type is crucial.

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This guide will help you check for common problems that cause the log ” Type [” + type + “] cannot be used in multi field ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Log Context

Log “Type [” + type + “] cannot be used in multi field” class name is TypeParsers.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 Mapper.TypeParser typeParser = parserContext.typeParser(type);
 if (typeParser == null) {
 throw new MapperParsingException("no handler for type [" + type + "] declared on field [" + multiFieldName + "]");
 if (typeParser instanceof FieldMapper.TypeParser == false) {
 throw new MapperParsingException("Type [" + type + "] cannot be used in multi field");
 }  FieldMapper.TypeParser fieldTypeParser = (FieldMapper.TypeParser) typeParser;
 multiFieldsBuilder.accept(fieldTypeParser.parse(multiFieldName; multiFieldNodes; parserContext));


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