THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
If you'd like to report a bug in Tez or ask for a new feature, open an issue on the Apache Tez JIRA. For general usage help, you should email the user mailing list. For developers contributing to Tez and are looking for help, you should an email to the dev mailing list.
How to Contribute
Setting up your dev environment
...