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

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 TransportTasksAction.java 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()) {
  finishHim();
  }
  }

Run the Check-Up to get customized recommendations like this:

error

Heavy merges detected in specific nodes

error-img

Description

A large number of small shards can slow down searches and cause cluster instability. Some indices have shards that are too small…

error-img

Recommendations Based on your specific ES deployment you should…

Based on your specific ES deployment you should…

1

X-PUT curl -H [a customized recommendation]

 

Optimize Elasticsearch Performance

Try The Tool