NO PRECOMMIT TESTS
2 things can be improved
1) ptest2 always downloads jars for compiling its own directory which takes about 1m30s which should take only 5s with cache jars. The reason for that is maven.repo.local is pointing to a path under WORKSPACE which will be cleaned by jenkins for every run.
2) For hive build we can make use of parallel build and quite the output of build which should shave off another 15-30s.