Cannot obtain short path for because JNA is not available – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch is unable to access the Java Native Access (JNA) library, which is required to obtain the short path for a specific file or directory. This could be due to incorrect installation, missing dependencies, or insufficient permissions. To resolve this issue, you can try reinstalling the JNA library, ensuring all necessary dependencies are installed, or checking the permissions of the OpenSearch process to access the JNA library. Additionally, you may need to verify your system’s compatibility with JNA.

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This guide will help you check for common problems that cause the log ” cannot obtain short path for [{}] because JNA is not available ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: bootstrap.

Log Context

Log “cannot obtain short path for [{}] because JNA is not available” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

     * @param path the path
     * @return the short path name (or the original path if getting the short path name fails for any reason)
    static String getShortPathName(final String path) {
        if (!JNA_AVAILABLE) {
            logger.warn("cannot obtain short path for [{}] because JNA is not available"; path);
            return path;
        return JNANatives.getShortPathName(path);


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