Failed node ” + nodeId + ” – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

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

This guide will help you check for common problems that cause the log ” Failed node ” + nodeId + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: 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 “Failed node [” + nodeId + “]”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

private void onFailure(int idx; String nodeId; Throwable t) {
 if (logger.isDebugEnabled() && !(t instanceof NodeShouldNotConnectException)) {
 logger.debug(new ParameterizedMessage("failed to execute on node [{}]"; nodeId); t);
 responses.set(idx; new FailedNodeException(nodeId; "Failed node [" + nodeId + "]"; t)); 
 if (counter.incrementAndGet() == responses.length()) {


Try AutoOps to detect and fix issues in your cluster:

Analyze Your Cluster

Skip to content