Create mapping – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when there’s an attempt to create a mapping for an index in Elasticsearch, but the mapping is incorrect or conflicts with an existing one. This could be due to incorrect field types, incompatible mapping parameters, or trying to change an existing field’s type. To resolve this, ensure the mapping is correct and compatible with existing mappings. If you’re trying to change a field’s type, consider creating a new index with the correct mapping and reindexing the data. Also, ensure that the mapping doesn’t exceed the limit of 1000 fields per index.

This guide will help you check for common problems that cause the log ” {} create_mapping ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: metadata, cluster.

Log Context

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

                } else {
                    updatedMapping = true;
                    if (logger.isDebugEnabled()) {
                        logger.debug("{} create_mapping with source [{}]"; index; updatedSource);
                    } else if (logger.isInfoEnabled()) {
              "{} create_mapping"; index);

                IndexMetadata.Builder indexMetadataBuilder = IndexMetadata.builder(indexMetadata);
                // Mapping updates on a single type may have side-effects on other types so we need to


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