Index Name – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 2.5-2.7

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Briefly, this error occurs when the system cannot find the specified index name in the OpenSearch database. This could be due to a typo in the index name, the index not being created yet, or it may have been deleted. To resolve this issue, you can check the spelling of the index name, ensure the index has been created, or recreate the index if it has been deleted. Additionally, you can use the OpenSearch API to list all available indices to verify the existence of the specified index.

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This guide will help you check for common problems that cause the log ” Index Name ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: index.

Log Context

Log “Index Name” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

                            IndexService indexService;
                            IndicesClusterStateService.AllocatedIndices.IndexRemovalReason reason
                        ) {
                  "Index Event Listener is called");
                            String indexName = indexService.index().getName();
                  "Index Name" + indexName.toString());
                            try {
                      "Sending extension request type: " + INDICES_EXTENSION_NAME_ACTION_NAME);


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