Re-syncing mappings with cluster state because of types – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.11

Briefly, this error occurs when there is a mismatch between the mappings defined in your Elasticsearch index and the actual data types present in your documents. This can happen if you’ve updated your mappings but haven’t reindexed your data. To resolve this issue, you can either reindex your data to match the updated mappings or adjust your mappings to match the existing data types in your documents. Additionally, ensure that any new data being indexed matches the defined mappings to prevent this error in the future.

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 “[{}] re-syncing mappings with cluster state because of types [{}]” classname is MetadataMappingService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                }
            }

            // if a single type is not up-to-date; re-send everything
            if (updatedTypes.isEmpty() == false) {
                logger.warn("[{}] re-syncing mappings with cluster state because of types [{}]"; index; updatedTypes);
                dirty = true;
                for (DocumentMapper mapper : Arrays.asList(mapperService.documentMapper();
                                                           mapperService.documentMapper(MapperService.DEFAULT_MAPPING))) {
                    if (mapper != null) {
                        builder.putMapping(new MappingMetadata(mapper));

 

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