not external this is create table statement: ----------------------------- create table if not exists user_info_20161207 (rowKey string,timestamp string,sex string ,birthday string ,native_place string ) row format delimited fields terminated by ',' ------------------------------ I kown the owner is hive not hadoop I specified the hive2 jdbc username 'hive' not hadoop
I just use 'hadoop' to create table and I drop table in hive .I find it's not delete in HDFS file system.sad :( 446463...@qq.com From: Alan Gates Date: 2016-12-07 10:34 To: user Subject: Re: I delete my table in hive,but the file in HDFS not be deleted Is the table external or managed? External tables do not remove their data when dropped, managed tables do. Alan. > On Dec 6, 2016, at 18:08, 446463...@qq.com wrote: > > I meet a problem in hive. > > I drop a table in hive and the table name ' user_info_20161206' > --------------------------------------- > hive> show tables; > OK > kylin_cal_dt > kylin_category_groupings > kylin_intermediate_dmp_cube_fb5904cf_a4d3_4815_802d_c31afe9119e9 > kylin_intermediate_test_cube_08677652_0f84_4322_a2a5_0a963723579e > kylin_intermediate_test_cube_a37beebf_d7da_4956_8e25_d563dd834364 > kylin_intermediate_test_cube_aa9ee162_0d45_4ea6_853d_6df127799edf > kylin_sales > Time taken: 0.045 seconds, Fetched: 7 row(s) > hive> > -------------------------------------- > but I find the user_info_20161206 file is exist in HDFS file > ------------------------------------------------ > drwxrwxrwt - hadoop hadoop 0 2016-09-26 11:50 > /user/hive/warehouse/dm.db > drwxrwxrwt - hadoop hadoop 0 2016-11-21 15:39 > /user/hive/warehouse/dw.db > drwxrwxrwt - hadoop hadoop 0 2016-11-03 12:44 > /user/hive/warehouse/kylin_cal_dt > drwxrwxrwt - hadoop hadoop 0 2016-11-03 12:44 > /user/hive/warehouse/kylin_category_groupings > drwxrwxrwt - hadoop hadoop 0 2016-11-03 12:44 > /user/hive/warehouse/kylin_sales > drwxrwxrwt - hadoop hadoop 0 2016-09-26 11:50 > /user/hive/warehouse/ods.db > drwxrwxrwt - hadoop hadoop 0 2016-11-30 17:53 > /user/hive/warehouse/raw.db > drwxrwxrwt - hadoop hadoop 0 2016-09-26 11:50 > /user/hive/warehouse/rpt.db > drwxrwxrwt - hadoop hadoop 0 2016-09-26 11:50 > /user/hive/warehouse/temp.db > drwxrwxrwt - hadoop hadoop 0 2016-11-24 13:17 > /user/hive/warehouse/test.db > drwxrwxrwt - hive hadoop 0 2016-12-06 21:15 > /user/hive/warehouse/user_info_20161206 > -------------------------------------------------- > I don't kown why I drop table in hive but the same file not delete in HDFS . > I test in mine test environment,it's work > the owner of file is 'hive' not 'hadoop'? > 446463...@qq.com
