JNA not found. native methods will be disabled. – How to solve related issues

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JNA not found. native methods will be disabled. – 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 ” JNA not found. native methods will be disabled. ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: bootstrap.

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 “JNA not found. native methods will be disabled.” classname is Natives.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             // load one of the main JNA classes to see if the classes are available. this does not ensure that all native
            // libraries are available; only the ones necessary by JNA to function
            Class.forName("com.sun.jna.Native");
            v = true;
        } catch (ClassNotFoundException e) {
            logger.warn("JNA not found. native methods will be disabled."; e);
        } catch (UnsatisfiedLinkError e) {
            logger.warn("unable to load JNA native support library; native methods will be disabled."; e);
        }
        JNA_AVAILABLE = v;
    }




 

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