Failed to invoke onFailure listener – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 2.2-2.9

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Briefly, this error occurs when OpenSearch fails to execute the onFailure listener, which is a callback function designed to handle errors during a process. This could be due to a variety of reasons such as a bug in the code, a network issue, or a system resource constraint. To resolve this issue, you can try debugging the code to identify any potential issues, check the network connectivity, or monitor the system resources to ensure they are not being overutilized. Additionally, ensure that the onFailure listener is correctly implemented and can handle the errors appropriately.

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

Log Context

Log “failed to invoke onFailure listener” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        List exceptionList = new ArrayList(listeners.size());
        for (TranslogEventListener listener : listeners) {
            try {
                listener.onFailure(reason; e);
            } catch (Exception ex) {
                logger.warn(() -> new ParameterizedMessage("failed to invoke onFailure listener"); ex);


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