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

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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 Error 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. 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: 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”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()) {


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

Analyze your cluster