Github user hyunsik commented on the pull request:
https://github.com/apache/tajo/pull/602#issuecomment-113976219
I found the problem. TablespaceManager is designed as a singleton class in
a cluster, but some unit tests starts additional TajoTestingCluster. It
overwrites the tablespace configurations of TablespaceManager. It results in
test failures. I'll try to change them to share the one cluster.
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