Failed to call listener on atomic field data loading – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch fails to load atomic field data due to an issue with the listener. This could be due to a configuration issue, a problem with the data itself, or a bug in the software. To resolve this issue, you could try reconfiguring the listener, checking the data for errors, or updating OpenSearch to the latest version. If the problem persists, consider seeking help from the OpenSearch community or the software provider.

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This guide will help you check for common problems that cause the log ” Failed to call listener on atomic field data loading ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: cache, fielddata, indices.

Log Context

Log “Failed to call listener on atomic field data loading” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

                for (Listener listener : k.listeners) {
                    try {
                        listener.onCache(shardId; fieldName; fieldData);
                    } catch (Exception e) {
                        // load anyway since listeners should not throw exceptions
                        logger.error("Failed to call listener on atomic field data loading"; e);
                return fieldData;
            return (FD) accountable;


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