Unable to load JNA native support library native methods will be disabled – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your OpenSearch operation.

Briefly, this error occurs when OpenSearch is unable to load the Java Native Access (JNA) library, which is used for native support. This could be due to a missing or incompatible JNA version, or insufficient permissions. To resolve this, ensure that the JNA library is correctly installed and the version is compatible with your OpenSearch version. Also, check the permissions of the directory where the JNA library is located. If necessary, adjust the permissions to allow OpenSearch to access and load the library.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” unable to load JNA native support library; native methods will be disabled. ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: bootstrap.

Log Context

Log “unable to load JNA native support library; native methods will be disabled.” classname is Natives.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :

            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;

    static void tryMlockall() {


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

Get expert answers on Elasticsearch/OpenSearch