Opster Team
Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them. Take a self-guided product tour to see for yourself (no registration required).
This guide will help you check for common problems that cause the log ” Removing custom meta data type ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: tribe.

Log Context
Log “[{}] removing custom meta data type [{}]” classname is TribeService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
if (mergedCustomMetaData == null) { // we ignore merging custom md which doesn't implement MergableCustomMetaData interface if (currentState.metaData().custom(changedCustomMetaDataType) instanceof MergableCustomMetaData) { // custom md has been removed clusterStateChanged = true; logger.info("[{}] removing custom meta data type [{}]"; tribeName; changedCustomMetaDataType); metaData.removeCustom(changedCustomMetaDataType); } } else { // custom md has been changed clusterStateChanged = true;
Find & fix Elasticsearch problems
Opster AutoOps diagnoses & fixes issues in Elasticsearch based on analyzing hundreds of metrics.
Fix Your Cluster IssuesConnect in under 2 minutes
Arpit Ghiya
Senior Lead SRE at Coupa