Hi hive community,
I am new to Hive and it may be a stupid question but let me know if you
know the answer.
I am attempting to upgrade hive metastore schema from 0.12 to 0.14. The
whole log is here [2]
At the end, VERSION table shows SCHEMA_VERSION 0.14.0. [1] which was 0.12.0
and it seems
Expanding on Alan’s post:
Files are intended to span many blocks and a single file may be read by many
mappers. In order for a file to be read by many mappers, it goes through a
process called input splits which splits the input around hdfs block boundaries.
If a unit of data within a file
Hi,
My version is 0.14 on Oracle metastore and there is no drop command there.
Table seems to keep partition column stats. So it is just stats table
CREATE TABLE PART_COL_STATS (
CS_ID NUMBER NOT NULL,
DB_NAME VARCHAR2(128) NOT NULL,
TABLE_NAME VARCHAR2(128) NOT NULL,
Alan and Grant,
many thanks. Grant's comment is exact on the point that I am exploring.
A bit background here. I am working on a MPP way to read ORC files through
this C++ API (https://github.com/hortonworks/orc) by Owen and team. The MPP
mechanism is using one(or several) independent process
You can also use the C++ reader to read a set of stripes. Look at the
ReaderOptions.range(offset, length), which selects the range of stripes to
process in terms of bytes.
.. Owen
On Tue, Apr 28, 2015 at 11:02 AM, Demai Ni nid...@gmail.com wrote:
Alan and Grant,
many thanks. Grant's comment
In Normal MR job can I configure ( cluster wide) default number of reducers
- if I don't specify any reducers in my job.
Owen,
cool. That is great. Thanks
Demai
On Tue, Apr 28, 2015 at 11:10 AM, Owen O'Malley omal...@apache.org wrote:
You can also use the C++ reader to read a set of stripes. Look at the
ReaderOptions.range(offset, length), which selects the range of stripes to
process in terms of bytes.
..
