Unexpected error while checking for node reconnects – How to solve related issues

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Unexpected error while checking for node reconnects – 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 ” Unexpected error while checking for node reconnects ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: 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 “Unexpected error while checking for node reconnects” classname is NodeConnectionsService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 
    class ConnectionChecker extends AbstractRunnable {

        
Override
        public void onFailure(Exception e) {
            logger.warn("unexpected error while checking for node reconnects"; e);
        }

        protected void doRun() {
            for (DiscoveryNode node : nodes.keySet()) {
                try (Releasable ignored = nodeLocks.acquire(node)) {



 

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