See <https://builds.apache.org/job/Tez-Build/1494/changes>
- Build failed in Jenkins: Tez-Build #1491 Apache Jenkins Server
- Build failed in Jenkins: Tez-Build #1492 Apache Jenkins Server
- Build failed in Jenkins: Tez-Build #1493 Apache Jenkins Server
- Jenkins build is back to normal : Tez-B... Apache Jenkins Server
