Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/2003
The [test
passes](https://travis-ci.org/Leemoonsoo/zeppelin/builds/200218542) in my
travis account.
Recently, travis concurrent build assigned to Zeppelin is reduced to 5 from
11. [INFRA-13469](https://issues.apache.org/jira/browse/INFRA-13469).
And today i see a CI triggering waits almost 10 hours to start.
This PR reduces CI build time by 60%, i'd like to merge it to master and
see how it helps.
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