Failed to create native process controller for Machine Learning – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.17

Briefly, this error occurs when Elasticsearch’s Machine Learning feature fails to create a native process controller. This could be due to insufficient system resources, incorrect permissions, or a misconfigured environment. To resolve this issue, ensure that your system has enough resources (CPU, memory, disk space), check that Elasticsearch has the necessary permissions to create processes, and verify your environment configuration. If the problem persists, consider disabling Machine Learning or consulting with a technical expert.

This guide will help you check for common problems that cause the log ” Failed to create native process controller for Machine Learning ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “Failed to create native process controller for Machine Learning” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 if (MachineLearningField.AUTODETECT_PROCESS.get(settings) && MachineLearningFeatureSet.isRunningOnMlPlatform(true)) {
 try {
 NativeController nativeController = NativeControllerHolder.getNativeController(clusterService.getNodeName(); environment);
 if (nativeController == null) {
 // This will only only happen when path.home is not set; which is disallowed in production
 throw new ElasticsearchException("Failed to create native process controller for Machine Learning");
 autodetectProcessFactory = new NativeAutodetectProcessFactory(


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