Object mapping parentMapper name trying to serialize a value with – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch tries to index a document with a field that has been mapped as an object, but the actual value is not an object. This can happen if the data types in your document don’t match the mappings you’ve defined. To resolve this issue, you can either change the data type in your document to match the mapping, or update the mapping to match the data type in your document. Alternatively, you can use the “ignore_malformed” option to ignore fields with incorrect data types.

This guide will help you check for common problems that cause the log ” object mapping [” + parentMapper.name() + “] trying to serialize a value with ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: mapping, index.

Log Context

Log “object mapping [” + parentMapper.name() + “] trying to serialize a value with” class name is DocumentParser.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 }  private static void parseValue(final DocumentParserContext context; ObjectMapper parentMapper;
 String currentFieldName; XContentParser.Token token; String[] paths) throws IOException {
 if (currentFieldName == null) {
 throw new MapperParsingException("object mapping [" + parentMapper.name() + "] trying to serialize a value with"
 + " no field associated with it; current value [" + context.parser().textOrNull() + "]");
 Mapper mapper = getLeafMapper(context; parentMapper; currentFieldName; paths);
 if (mapper != null) {
 parseObjectOrField(context; mapper);


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