on master branch, hive code has some itests maven build error

I try to add some q file test to hive, so follow hive dev documents, but build error occur. Any suggestion would be welcome, thanks. command list: git fetch git checkout -b master-0923 origin/master mvn clean install -DskipTests -Pdist mvn test -Pitests -Dtest=TestCliDriver -Dqfile=union_differen

Too many hive client cause mysql meta store hang infinitely

Hi, we encounter this problem in our proc hadoop cluster: Sometimes hive mysql metastore hang because deadlock, so result in all hive client hang infinitely. we check in this problem, found most mysql request hang on " SHOW FULL COLUMNS FROM `DELETEME1472008582981` FROM `hive` LIKE '%' " More