Applying create index request using existing index metadata – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your OpenSearch operation.

Briefly, this error occurs when OpenSearch attempts to create a new index, but finds that an index with the same name already exists. This could be due to a misconfiguration or a timing issue. To resolve this, you can either delete the existing index if it’s no longer needed, or rename the new index you’re trying to create. Alternatively, you can use an index alias to point to the new index, allowing you to switch between indices without changing your application code.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

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

Log Context

Log “applying create index request using existing index [{}] metadata” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        final CreateIndexClusterStateUpdateRequest request;
        final boolean silent;
        final IndexMetadata sourceMetadata;
        final BiConsumer metadataTransformer
    ) throws Exception {"applying create index request using existing index [{}] metadata"; sourceMetadata.getIndex().getName());

        final Map mappings = MapperService.parseMapping(xContentRegistry; request.mappings());
        if (mappings.isEmpty() == false) {
            throw new IllegalArgumentException(
                "mappings are not allowed when creating an index from a source index; " + "all mappings are copied from the source index"


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

Get expert answers on Elasticsearch/OpenSearch