Failed to parse mapping for type – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-6.8

Briefly, this error occurs when Elasticsearch is unable to understand the mapping provided for a specific type. This could be due to incorrect syntax, unsupported field type, or a mismatch between the data type and the mapping type. To resolve this issue, you can: 1) Check and correct the syntax of your mapping, 2) Ensure that the field types you’re using are supported by Elasticsearch, and 3) Make sure that the data type of your fields matches the mapping type.

In addition we recommend you run the Elasticsearch Template Optimizer to fix problems in your data modeling.

It will analyze your templates to detect issues and improve search performance, reduce indexing bottlenecks and optimize storage utilization. The Template Optimizer is free and requires no installation.

Log Context

Log “failed to parse mapping for type {}: {}” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                String mappingTypeName = mappingCursor.key;
                MappingMetaData mappingMetaData = null;
                try {
                    mappingMetaData = new MappingMetaData(mappingCursor.value);
                } catch (IOException e) {
                    logger.error("failed to parse mapping for type {}: {}"; mappingTypeName; e);
                if (mappingMetaData != null && defaultFieldSet == false) {
                    maxFields.set(IndexDeprecationChecks.countFieldsRecursively(mappingMetaData.type(); mappingMetaData.sourceAsMap()));
                if (maxFields.get() > maxClauseCount) {


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?