Unable to investigate path ” + path + ” – How to solve this Elasticsearch error

Opster Team

March-22, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” Unable to investigate path ” + path + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster.

Log Context

Log “Unable to investigate path [” + path + “]”classname  is ElasticsearchNodeCommand.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

private static NodeEnvironment.NodePath createNodePath(Path path) {
 try {
 return new NodeEnvironment.NodePath(path);
 } catch (IOException e) {
 throw new ElasticsearchException("Unable to investigate path [" + path + "]"; e);
 // package-private for testing
 OptionParser getParser() {


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