hive 进行count(*) 等了好久都没有出来
hive> create table t4 as select * from student;
Query ID = main_20190427132121_96c6db97-98d5-42a7-b02f-cd91f6ef5a2c
Total jobs = 3
Launching Job 1 out of 3
Number of reduce tasks is set to 0 since there's no reduce operator
Starting Job = job_1556284245199_0002, Tracking URL = http://master:8088/proxy/application_1556284245199_0002/
Kill Command = /home/main/environment/game/hadoop-2.7.7/bin/hadoop job -kill job_1556284245199_0002
一直在这里等待。。。（不知道为什么）
