Log Unexpected error while checking for node reconnects – How To Solve Related Issues


Log 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 try running the 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. 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: 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 “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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