See <https://builds.apache.org/job/Kylin-Master-JDK-1.7/850/display/redirect?page=changes>
- Jenkins build became unstable: Kylin-Master-JDK-1.7... Apache Jenkins Server
- Jenkins build is still unstable: Kylin-Master-J... Apache Jenkins Server
- Jenkins build is back to stable : Kylin-Mas... Apache Jenkins Server
