Node not part of the cluster ; ignoring. – How to solve related issues

Opster Team

Jan-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 ” Node not part of the cluster ; ignoring. ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: client, cluster and node.

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 “Node {} not part of the cluster {}; ignoring…” classname is TransportClientNodesService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                     transportService.sendRequest(connection; TransportLivenessAction.NAME; new LivenessRequest();
                        TransportRequestOptions.builder().withType(TransportRequestOptions.Type.STATE).withTimeout(pingTimeout).build();
                        handler);
                    final LivenessResponse livenessResponse = handler.txGet();
                    if (!ignoreClusterName && !clusterName.equals(livenessResponse.getClusterName())) {
                        logger.warn("node {} not part of the cluster {}; ignoring..."; listedNode; clusterName);
                        newFilteredNodes.add(listedNode);
                    } else {
                        // use discovered information but do keep the original transport address;
                        // so people can control which address is exactly used.
                        DiscoveryNode nodeWithInfo = livenessResponse.getDiscoveryNode();




 

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