今天使用hive，插入数据是使用insert，遇到报错
INFO : Launching Job 1 out of 3 INFO : Starting task [Stage-1:MAPRED] in serial mode INFO : Number of reduce tasks determined at compile time: 1 INFO : In order to change the average load for a reducer (in bytes): INFO : set hive.exec.reducers.bytes.per.reducer=INFO : In order to limit the maximum number of reducers: INFO : set hive.exec.reducers.max= INFO : In order to set a constant number of reducers: INFO : set mapreduce.job.reduces= ERROR : Job Submission failed with exception 'org.apache.hadoop.security.authorize.AuthorizationException(User: bigdata is not allowed to impersonate bigdata)' org.apache.hadoop.security.authorize.AuthorizationException: User: bigdata is not allowed to impersonate bigdata ERROR : FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask. User: bigdata is not allowed to impersonate bigdata INFO : Completed executing command(queryId=bigdata_20220114234734_7f82943d-3d16-4314-9224-c958dac724a8); Time taken: 852.104 seconds
后面发现是hive-site.xml文件出现问题，没有添加
hive.server2.enable.doAs配置
在hive目录下的conf文件下的hive-site.xml文件，添加配置
hive.server2.enable.doAs false
然后就可以正常操作了
hive.server2.enable.doAs设置成false则，yarn作业获取到的hiveserver2用户都为hive用户。
设置成true则为实际的用户名
