Briefly, this error occurs when Elasticsearch is unable to interact with its Machine Learning (ML) component, possibly due to a configuration issue, a problem with the ML process, or a lack of necessary resources. To resolve this, ensure that the ML settings in Elasticsearch are correctly configured. Check the system’s resources, as ML requires sufficient memory and CPU. Also, verify that the ML process is running properly. If the problem persists, consider restarting the Elasticsearch service.
This guide will help you check for common problems that cause the log ” Cannot communicate with Machine Learning native code ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “Cannot communicate with Machine Learning native code” class name is MachineLearningFeatureSet.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
nativeCodeInfo = nativeController.getNativeCodeInfo();
}
}
} catch (IOException | TimeoutException e) {
LogManager.getLogger(MachineLearningFeatureSet.class).error("Cannot get native code info for Machine Learning"; e);
throw new ElasticsearchException("Cannot communicate with Machine Learning native code");
}
}
this.nativeCodeInfo = nativeCodeInfo;
}
