WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

This warning message is related to the Hadoop framework and indicates that the native library for Hadoop is not available or cannot be loaded. The native library is a platform-specific component that provides better performance and functionality for Hadoop.

However, the Hadoop framework can still work without the native library by using the built-in Java classes. The message is simply informing the user that the native library is not being used and that the framework is falling back to the built-in classes.

If you are experiencing performance issues with Hadoop, you may want to investigate why the native library is not being loaded and try to resolve the issue. However, if everything is working as expected, you can ignore this warning.