13.05.2024 Problem:
After a successful installation of OpenSearch on a Red Hat Enterprise Linux 8.9 system, attempts to start the service fail with the error message: “Could not initialize class com.sun.jna.Native.” Additionally, there is a warning indicating the inability to load JNA (Java Native Access) native support library, resulting in disabled native methods.
Solution:
The following options for solving the issue were put forth:
Option 1: Adjust JVM Heap Settings
Description: Increase the JVM heap size to address potential memory constraints.
Steps: Open the jvm.options file.
Modify the -Xms and -Xmx parameters to allocate more memory, such as changing -Xms1g and -Xmx1g to -Xms4g and -Xmx4g, respectively.
Option 2: Modify User Home Directory
Description: Change the home directory for the ‘opensearch’ user to match the installation path.
Steps: Edit the /etc/passwd file to update the home directory path for the ‘opensearch’ user, setting it to the OpenSearch installation directory (e.g., /usr/share/opensearch).
Option 3: Create User with Home Directory
Description: Create a new user with a home directory on the executable path and install OpenSearch in that directory.
Steps: Create a user, e.g., ‘opensearch’, with a home directory on the executable path (e.g., /opt/opensearch).
Install OpenSearch in this directory (/opt/opensearch/).
Conclusion:
After analyzing the issue and considering the possible options for solving the issue, it was determined that the 1st option, adjusting the JVM heap settings, resolved the issue successfully. The client reported that implementing this option resolved the issue.