How To Solve Issues Related to Log – Failed to send bad request response

How To Solve Issues Related to Log – Failed to send bad request response

Updated: Jan-20

Elasticsearch Version: 1.7-8.0


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To troubleshoot log “Failed to send bad request response” it’s important to understand a few problems related to Elasticsearch concepts request, response, rest. See bellow important tips and explanations on these concepts

Log Context

Log”Failed to send bad request response” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             channel.sendResponse(new BytesRestResponse(channel; BAD_REQUEST; e));
        } catch (final IOException e) {
            if (cause != null) {
            logger.warn("failed to send bad request response"; e);
            channel.sendResponse(new BytesRestResponse(INTERNAL_SERVER_ERROR; BytesRestResponse.TEXT_CONTENT_TYPE; BytesArray.EMPTY));


Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 400 bad request when indexing

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Filebeat Stops Sending To Es Eventu  

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