1. Fix error class in start_fe.sh and start_broker.sh. 2. Add log4j2.xml in fe/src/test/resources/ to run fe ut without log4j warnings. 3. Reduce the test file size in be ut.
1. Fix error class in start_fe.sh and start_broker.sh. 2. Add log4j2.xml in fe/src/test/resources/ to run fe ut without log4j warnings. 3. Reduce the test file size in be ut.