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

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. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the 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 which analyses ES to pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log Context

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

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


Run the Check-Up to get a customized report like this:

Analyze your cluster