The Hadoop community welcome your patch contribution, and like increasingly patches are submitted via GitHub Pull Requests.
That is great, as it reduces the friction to review code & commit code. However, please make sure to file a jira for your PR, as described in the How to Contribute <https://cwiki.apache.org/confluence/display/HADOOP/How+To+Contribute> wiki. The fact is, if your PR isn't associated with a JIRA ID, and add the JIRA ID in the title of your PR, your PR is not likely going to be noticed by committers. Most Hadoop committers use Apache JIRA to track issues, and folks usually find it easier to exchange in-depth technical discussion over JIRAs than PR. Thank you and happy patching! Wei-Chiu