How To Solve Issues Related to Log – JNA not found. native methods will be disabled.

How To Solve Issues Related to Log – JNA not found. native methods will be disabled.

Updated: Jan-20

Elasticsearch Version: 1.7-8.0

Background

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To troubleshoot log “JNA not found. native methods will be disabled.” it’s important to understand a few problems related to Elasticsearch concepts bootstrap. See bellow important tips and explanations on these concepts

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;
    }




Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 JNA not found. native methods will be disabled. java.lang.ClassNotFoundException: com.sun.jna.Native

3.60 K 3

Unable to load JNA native support library Elasticsearch 6.x

  5.82 K 6

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