Index mappings are not up-to-date and will be updated – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.11-8.9

Briefly, this error occurs when the structure or schema (known as mappings) of your Elasticsearch index is not current with the data it’s supposed to handle. This could be due to changes in the data types or fields in your data source. To resolve this issue, you can manually update the mappings using the ‘PUT mapping’ API. However, be aware that not all changes are allowed on existing fields. Alternatively, you can reindex your data into a new index with the updated mappings. Always ensure your mappings are up to date to prevent data inconsistency.

This guide will help you check for common problems that cause the log ” Index {} mappings are not up-to-date and will be updated ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: indices, index.

Log Context

Log “Index {} mappings are not up-to-date and will be updated” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            return UpgradeStatus.NEEDS_UPGRADE;
        } else if (indexState.mappingUpToDate) {
            logger.trace("Index {} is up-to-date; no action required"; indexDescription);
            return UpgradeStatus.UP_TO_DATE;
        } else {
  "Index {} mappings are not up-to-date and will be updated"; indexDescription);
            return UpgradeStatus.NEEDS_MAPPINGS_UPDATE;



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