How To Solve Issues Related to Log – Failed to handle exception response

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Troubleshooting background

To troubleshoot Elasticsearch log “Failed to handle exception response” it’s important to know common problems related to Elasticsearch concepts: response. See below-detailed explanations complete with common problems, examples and useful tips.


To help troubleshoot related issues we have gathered selected Q&A from the community and issues from Github , please review the following for further information :

1. Failed to deserialize exception response from stream – Grails ElasticSearch – Stats : ♥ 5.12 K  Ι √ 3

2. Es2 3 3 Oom Someone Help      


Log Context

Log ”Failed to handle exception response” classname is TcpTransport.java
We have extracted the following from Elasticsearch source code to get an in-depth context :

         final RemoteTransportException rtx = (RemoteTransportException) error;
        threadPool.executor(handler.executor()).execute(() -> {
            try {
                handler.handleException(rtx);
            } catch (Exception e) {
                logger.error(() -> new ParameterizedMessage("failed to handle exception response [{}]"; handler); e);
            }
        });
    }

    protected void handleRequest(TcpChannel channel; InboundMessage.RequestMessage message; int messageLengthBytes) throws IOException {






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