Error loading the template for the MlMetaIndex INDEX NAME index – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.6

Briefly, this error occurs when Elasticsearch fails to load the template for the Machine Learning Meta Index. This could be due to a missing or corrupted template, or insufficient permissions. To resolve this, you can try to reload the template, ensure that the Elasticsearch cluster has the necessary permissions, or check the integrity of the template file. If the error persists, consider recreating the index with a valid template.

This guide will help you check for common problems that cause the log ” Error loading the template for the ” + MlMetaIndex.INDEX_NAME + ” index ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index, plugin, template.

Log Context

Log “Error loading the template for the ” + MlMetaIndex.INDEX_NAME + ” index” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                        .putMapping(SINGLE_MAPPING_NAME; Strings.toString(docMapping))
                templates.put(MlMetaIndex.INDEX_NAME; metaTemplate);
            } catch (IOException e) {
                logger.warn("Error loading the template for the " + MlMetaIndex.INDEX_NAME + " index"; e);

            try (XContentBuilder configMapping = ElasticsearchMappings.configMapping()) {
                IndexTemplateMetaData configTemplate =


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