Unable to parse HTTP body to produce an error response – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.13-8.9

Briefly, this error occurs when Elasticsearch cannot parse the HTTP body of a request to produce an error response. This usually happens due to malformed JSON in the request body. To resolve this issue, you can validate your JSON before sending the request. Make sure that the JSON is properly formatted and does not contain any syntax errors. Additionally, ensure that the content type of your request is set to ‘application/json’. If the problem persists, check your Elasticsearch logs for more detailed error messages.

This guide will help you check for common problems that cause the log ” Unable to parse HTTP body to produce an error response ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: blobstore, response.

Log Context

Log “Unable to parse HTTP body to produce an error response” classname is URLHttpClient.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    final Charset utf = getCharset(httpEntity);
                    errorMessage = new String(errorBodyBytes; utf);
        } catch (Exception e) {
            logger.warn("Unable to parse HTTP body to produce an error response"; e);
        } finally {
        return errorMessage;


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