Cannot register console handler because JNA is not available – How to solve related issues

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Cannot register console handler because JNA is not available – How to solve related issues

Opster Team

Jan-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run 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 ” Cannot register console handler because JNA is not available ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: bootstrap and handler.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “Cannot register console handler because JNA is not available” classname is Natives.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         return JNANatives.getShortPathName(path);
    }

    static void addConsoleCtrlHandler(ConsoleCtrlHandler handler) {
        if (!JNA_AVAILABLE) {
            logger.warn("cannot register console handler because JNA is not available");
            return;
        }
        JNANatives.addConsoleCtrlHandler(handler);
    }





 

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