Thank you Gopal for pointing the root cause. After running command alter table
xxx compact ‘major’ to request a force compaction, total length is right !
Is there any way to do compact immediately after insert values.
Bob He
Thanks
On 25 Jul 2018, at 1:45 PM, Gopal Vijayaraghavan wrote:
> Sea
Hi,
When I was tuning initial mapper number with Hive+Tez, found if orc table is
clustered, total length return by estimator is always 2^31.
Hive: 2.3.3
Tez: 0.8.4 (TezSplitGrouper.java:197)
How to replicate:
create table test (f1 string, f2 string) clustered by (f1) into 1 buckets
stored as
