Github user ykrips commented on the pull request:
https://github.com/apache/tajo/pull/311#issuecomment-69843915
Hello All,
Travis build failed for directory issues, but running test cases on my
ubuntu box has passed. By the way, TestHistory testcase has sometimes failed
for incorrect state and I will figure out why it has failed. After fixing up
this error, optimization works will be started.
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