Cannot getrlimit RLIMIT FSIZE 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 interact with native system libraries. This can happen due to incorrect installation or configuration. To resolve this, ensure that the JNA library is correctly installed and accessible by OpenSearch. If it’s installed, check the library’s path in the OpenSearch configuration. Also, verify the permissions and ownership of the JNA files, they should be readable and executable by the OpenSearch process. If the issue persists, reinstalling JNA might be necessary.

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This guide will help you check for common problems that cause the log ” cannot getrlimit RLIMIT_FSIZE 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 getrlimit RLIMIT_FSIZE because JNA is not available” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :


    static void trySetMaxFileSize() {
        if (!JNA_AVAILABLE) {
            logger.warn("cannot getrlimit RLIMIT_FSIZE because JNA is not available");


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