Malformed external ping request; missing cluster-name element within request; from ; content – How to solve related issues

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Malformed external ping request; missing cluster-name element within request; from ; content – How to solve related issues

Opster Team

Feb-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Malformed external ping request; missing cluster-name element within request; from ; content ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: discovery, discovery-multicast, ping and Plugin.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “malformed external ping request; missing ‘cluster_name’ element within request; from {}; content {}” classname is MulticastZenPing.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                 return;
            }

            final String requestClusterName = request.containsKey("cluster_name") ? request.get("cluster_name").toString() : request.containsKey("clusterName") ? request.get("clusterName").toString() : null;
            if (requestClusterName == null) {
                logger.warn("malformed external ping request; missing 'cluster_name' element within request; from {}; content {}"; remoteAddress; externalPingData);
                return;
            }

            if (!requestClusterName.equals(clusterName.value())) {
                logger.trace("got request for cluster_name {}; but our cluster_name is {}; from {}; content {}";




 

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