Removing component template – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch is trying to remove a component template that doesn’t exist or is already deleted. This could be due to a misconfiguration or a timing issue. To resolve this, ensure that the component template you’re trying to remove actually exists. If it does, check if there are any dependencies on it before removing. If the error persists, it could be a bug and you may need to update your OpenSearch version. Also, consider implementing error handling in your code to manage such scenarios.

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

Log Context

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

                    // TODO: perhaps introduce a ComponentTemplateMissingException?
                    throw new IndexTemplateMissingException(name);
                Metadata.Builder metadata = Metadata.builder(currentState.metadata());
                for (String templateName : templateNames) {
          "removing component template [{}]"; templateName);
                return ClusterState.builder(currentState).metadata(metadata).build();


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