Removing index template – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.8-8.9

Briefly, this error occurs when Elasticsearch is trying to delete an index template that no longer exists or is in use. This could be due to a misconfiguration or an incorrect command. To resolve this issue, you can verify the existence of the index template before attempting to delete it. If it doesn’t exist, no action is needed. If it does exist and is not in use, you can proceed with the deletion. If it’s in use, ensure you have a replacement template ready before deleting it to avoid disruption.

This guide will help you check for common problems that cause the log ” removing index template [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: metadata, index, template, cluster.

Log Context

Log “removing index template [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


        Metadata.Builder metadata = Metadata.builder(currentState.metadata());
        for (String templateName : templateNames) {
  "removing index template [{}]"; templateName);
        return ClusterState.builder(currentState).metadata(metadata).build();