Index alias is not up to date Updating mapping – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.2-7.11

Briefly, this error occurs when the mapping of an Elasticsearch index alias is not updated. This can happen when new fields are added to the index or the data type of existing fields is changed. To resolve this issue, you can update the mapping of the index alias using the ‘PUT’ command. Alternatively, you can delete and recreate the alias with the updated mapping. However, be careful as deleting an alias will also delete all the data associated with it. Always ensure to backup your data before performing such operations.

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 “Index [{}] (alias [{}]) is not up to date. Updating mapping” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                }; client.admin().indices()::create);
            } else if (indexState.mappingUpToDate == false) {
      "Index [{}] (alias [{}]) is not up to date. Updating mapping"; indexState.concreteIndexName; this.aliasName);
                final byte[] mappingSource = mappingSourceSupplier.get();
                final Tuple mappingAndSettings = parseMappingAndSettingsFromTemplateBytes(mappingSource);
                PutMappingRequest request = new PutMappingRequest(indexState.concreteIndexName)
                        .source(mappingAndSettings.v1(); XContentType.JSON)


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