Failed to notify channel of error message for action – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1.2-2.9

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Briefly, this error occurs when OpenSearch fails to send an error notification to a specific channel due to an action. This could be due to network issues, incorrect configuration, or a problem with the channel itself. To resolve this, you can check your network connection and ensure it’s stable. Next, verify your OpenSearch configuration settings to ensure they are correct. Lastly, inspect the channel to ensure it’s functioning properly. If the problem persists, consider seeking help from OpenSearch support or community forums.

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This guide will help you check for common problems that cause the log ” failed to notify channel of error message for action [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: .

Log Context

Log “failed to notify channel of error message for action [{}]” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        } catch (Exception e) {
            try {
            } catch (Exception inner) {
                logger.warn(() -> new ParameterizedMessage("failed to notify channel of error message for action [{}]"; action); inner);

    private boolean shouldTraceAction(String action) {


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