i have an error after that step   hive> insert overwrite table hbase_table_2 select concat(ename,":",eno)as key,ename,eno,eage,esalary from emp; Query ID = usr_20170419111919_299ad34e-a846-45fa-8334-84291d3dc9f1 Total jobs = 1 Launching Job 1 out of 1 Number of reduce tasks is set to 0 since there's no reduce operator Job running in-process (local Hadoop) Hadoop job information for Stage-0: number of mappers: 0; number of reducers: 0 2017-04-19 11:20:15,620 Stage-0 map = 0%,  reduce = 0% Ended Job = job_local1415977764_0001 with errors Error during job, obtaining debugging information... Job Tracking URL: http://localhost:8080/ FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask MapReduce Jobs Launched: Stage-Stage-0:  HDFS Read: 0 HDFS Write: 0 FAIL Total MapReduce CPU Time Spent: 0 msec ... View more