...
- Implement/Extend the HadoopShim class
- Implement/Extend the HadoopShimProvider class
- Create a jar for the implementations with the required provider-configuration file under META-INF/services.
- Add this jar to the tez tarball defined via "tez.lib.uris" or via "tez.aux.uris"
As mentioned earlier, if there are other shims that match the Hadoop version, your specific shim may not be picked up at runtime. To avoid this issue, you may need to remove the "hadoop-shim-2.*" jars from the tez tarball as needed.
For more questions/clarifications, please send questions to dev@tez.apache.org