Received – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 2.5-2.7

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Briefly, this error occurs when OpenSearch receives an empty object or data. It’s a generic error and can be caused by various issues such as incorrect configuration, network issues, or data corruption. To resolve this, you can check the OpenSearch logs for more detailed error messages. Ensure that the configuration files are correct and the network connection is stable. If data corruption is suspected, consider restoring from a backup.

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

Log Context

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

                return new IndicesModuleResponse(in);

            public void handleResponse(IndicesModuleResponse response) {
      "received {}"; response);
                if (response.getIndexEventListener() == true) {
                    indexModule.addIndexEventListener(new IndexEventListener() {
                        public void beforeIndexRemoved(
                            IndexService indexService;


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