Hi, I am trying to insert data into orc table from a text table.The query is as follows :
insert into table test_orc(x,y) select * from test where x=4 and y=5 ; The MR is taking a lot of time and all but one reducer got completed quickly.But the last reducer is taking a lot of time. The total data size is 2.9 TB. I am not able to understand why only one reducer is taking so much of time ? Is it because whole map output went to a single reducer ? Regards, Kashif
