Component template existing == null adding updating – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.8-8.9

Briefly, this error occurs when you are trying to add or update a component template in Elasticsearch, but the existing template is null or doesn’t exist. This could be due to a misconfiguration or a typo in the template name. To resolve this issue, you can check if the template name is correct and exists in your Elasticsearch cluster. If it doesn’t, you need to create it before updating. Also, ensure that your Elasticsearch cluster is properly configured and running without issues.

This guide will help you check for common problems that cause the log ” {} component template [{}]”; existing == null ? “adding” : “updating ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: metadata, template, cluster.

Log Context

Log “{} component template [{}]”; existing == null ? “adding” : “updating” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            if (validationFailure != null) {
                throw validationFailure;
        }"{} component template [{}]"; existing == null ? "adding" : "updating"; name);
        return ClusterState.builder(currentState)
            .metadata(Metadata.builder(currentState.metadata()).put(name; finalComponentTemplate))


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