Not accumulating exceptions excluding exception from response – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 5-5

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Briefly, this error occurs when Elasticsearch encounters multiple exceptions during a single operation, but only reports the first one, excluding the rest from the response. This can make troubleshooting difficult as you’re not getting the full picture of what’s going wrong. To resolve this issue, you can adjust the Elasticsearch settings to include all exceptions in the response. Alternatively, you can use logging tools to capture all exceptions. Lastly, you can debug the operation step by step to identify and fix all the issues causing the exceptions.

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This guide will help you check for common problems that cause the log ” not accumulating exceptions; excluding exception from response ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: response.

Log Context

Log “not accumulating exceptions; excluding exception from response” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            if (response instanceof FailedNodeException) {
                if (accumulateExceptions) {
                } else {
                    logger.warn("not accumulating exceptions; excluding exception from response"; (FailedNodeException)response);
            } else {


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