Log Missing meta field in mapping of index – How To Solve Related Issues

Log Missing meta field in mapping of index – How To Solve Related Issues

Opster Team

Jan-20, Version: 1.7-8.0


Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Missing meta field in mapping of index ” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: index, mapping and plugin.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log context

Log “Missing _meta field in mapping [{}] of index [{}]” classname is IndexAuditTrail.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            } else {
                Map meta = (Map) docMapping.sourceAsMap().get("_meta");
                if (meta == null) {
                    logger.warn("Missing _meta field in mapping [{}] of index [{}]"; docMapping.type(); index);
                    if (indexToRemoteCluster || state.nodes().isLocalNodeElectedMaster() || hasStaleMessage()) {
                        putAuditIndexMappingsAndStart(index; nextIndex);
                    } else {
                        logger.debug("audit index [{}] is missing _meta for type [{}]"; index; DOC_TYPE);


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